A system for detecting bodily responses to visual stimuli on eyewear, and a method for the system and eyewear.

Abstract

The present disclosure relates to a system and method for detecting a physical response to a visual stimulus. The system includes eyewear, the eyewear delivering a left visual stimulus via a left side of the eyewear and a right visual stimulus via a right side of the eyewear. The system further includes a sensor configured to measure a body posture of a subject's body when the subject is wearing the eyewear. The system further includes a control circuit operably coupled to the eyewear and the sensor, the control circuit when operably coupled receives body posture measurements from the sensor, provides body posture response information based on the body posture measurements, and identifies deviations of the body posture response information relative to a reference, the reference being based on the left visual stimulus and the right visual stimulus.

Description

Technical Field

[0001] Various aspects of the present disclosure relate to a system for detecting a bodily reaction to visual stimuli provided by eyewear. Various aspects of the present disclosure further relate to a method for detecting a bodily reaction to visual stimuli provided by eyewear, and a computer program.

Background Art

[0002] Ocular dominance (also known as interocular sensory imbalance) is an inherent property of the visual system. Small ocular imbalances or dominance do not clinically manifest, but large levels of this imbalance may affect binocular vision functions (e.g., stereopsis). In more extreme cases such as amblyopia (also known as "lazy eye"), it can also affect monocular vision processing such as visual acuity and contrast sensitivity, as well as other vision-dependent activities such as visual motor tasks.

[0003] Currently, ocular dominance is evaluated by subjective methods that provide limited information, scarcely consider the realistic visual environment, and cannot integrate ocular dominance with other sensory modalities. Therefore, these methods have limitations in application to real-world multisensory scenarios.

[0004] Therefore, it is desirable to search for better means to objectively evaluate ocular dominance.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The object of the present invention is to provide a system and method for objectively evaluating ocular dominance applicable to real-world multisensory scenarios. In particular, the object of the present invention is to provide a system and method for evaluating ocular dominance through or in conjunction with other sensory processes, such as multisensory integration during movement. The system and method of the present invention may be used for the diagnosis and treatment of the human visual system, for example, to assist in or be used in the design of ocular lenses, particularly for ocular dominance. The system and method of the present invention may also be used to evaluate or test a subject's response to such personalized ocular lenses to further assist in the diagnosis and / or treatment of ocular dominance. [Means for solving the problem]

[0006] A first aspect of this disclosure relates to a system for detecting bodily responses to visual stimuli. The system includes eyewear that transmits left visual stimuli via the left side of the eyewear and right visual stimuli via the right side of the eyewear. The system further includes a sensor configured to measure the body posture of a subject when the subject is wearing the eyewear. The system further includes a control circuit that can be operably coupled to the eyewear and the sensor, and as a result, when operably coupled, the control circuit receives a measurement of body posture from the sensor, provides body posture response information based on the measurement of body posture, identifies deviations of the body posture response information from a reference, the reference being based on left and right visual stimuli.

[0007] According to various embodiments, the eyewear may be configured to correct the visual balance between a left visual stimulus via the left side of the eyewear and a right visual stimulus via the right side of the eyewear. According to various embodiments, the sensor may further measure the subject's body posture in response to the correction of the visual balance by the eyewear.

[0008] According to various embodiments, the body posture may be a static position or a moving position.

[0009] According to various embodiments, the correction of visual balance may include translation or rotation of at least one of the left visual stimulus and the right visual stimulus. According to various embodiments, the correction of visual balance may include a combination of translation and rotation of at least one of the left visual stimulus and the right visual stimulus.

[0010] According to various embodiments, the correction of visual balance may include a change in the brightness of at least one of the left visual stimulus and the right visual stimulus.

[0011] According to various embodiments, the correction of visual balance may include a change in the contrast of at least one of the left visual stimulus and the right visual stimulus.

[0012] According to various embodiments, the correction of visual balance may include a change in the spatial frequency content of at least one of the left visual stimulus and the right visual stimulus.

[0013] According to various embodiments, the correction of visual balance may include a change in the tilt of at least one of the left visual stimulus and the right visual stimulus.

[0014] According to various embodiments, the sensor may be removablely attached to a subject in order to provide measurements of body posture.

[0015] According to various embodiments, the body posture measurements may include a set of measurements that include a first displacement in a first direction which may be medial-outward relative to the subject. The set of measurements may further include a second displacement in a second direction which is anterior-posterior relative to the subject and may be perpendicular to the first direction.

[0016] According to various embodiments, the body posture response information may be based on a first displacement, a second displacement, the ratio between the first and second displacements, or a combination thereof.

[0017] According to various embodiments, the control circuit may further be configured to identify a set of adjustment values, and the control circuit may correct the visual balance between the left visual stimulus and the right visual stimulus. The set of adjustment values ​​may include values ​​such as minimizing the deviation between the body posture response information and a reference, or reaching the reference.

[0018] According to various embodiments, the eyewear may include a filter, and the eyewear may be coupled to an external display which may display visual stimuli. The filter may be configured to modify the characteristics of the visual stimuli so that the visual stimuli may be displayed as left and right visual stimuli. According to various embodiments, the filter may further be configured to correct the visual balance between the left and right visual stimuli.

[0019] A second aspect of this disclosure relates to a method for detecting a bodily response to a visual stimulus. The method includes providing a left visual stimulus via the left side of eyewear and a right visual stimulus via the right side of eyewear, providing a sensor for measuring the body posture of a subject when the subject is wearing eyewear, and measuring the body posture using the sensor. The method also includes generating bodily posture response information based on the measured bodily posture using a control circuit, and further including identifying deviations of the bodily posture response information from a reference using the control circuit.

[0020] According to various embodiments, the method may include correcting the visual balance between a left visual stimulus via the left side of the eyewear and a right visual stimulus via the right side of the eyewear using a control circuit. The method may further include measuring the subject's body posture in response to the corrected visual balance using a sensor.

[0021] In various embodiments, the method may include using a control circuit to provide a set of adjustment values ​​based on the deviation of body posture response information from a reference. Alternatively, in various embodiments, the method may include using a control circuit to provide a correction of the visual balance between the left and right visual stimuli to identify a set of adjustment values. The set of adjustment values ​​may be provided to minimize the deviation between the body posture response information and the reference, or to reach the reference.

[0022] A third aspect of this disclosure relates to a method for detecting a bodily response to a visual stimulus. The method includes providing a left visual stimulus via the left side of eyewear and a right visual stimulus via the right side of eyewear, and providing a sensor for measuring the body posture of a subject when the subject is wearing the eyewear. The method also includes modifying at least one of the left visual stimulus and the right visual stimulus, and measuring the body posture with the sensor. The method further includes generating bodily posture response information based on the measured body posture by a microprocessor operably coupled to the eyewear and the sensor, and identifying deviations of the bodily posture response information from a reference by the microprocessor or another microprocessor. The reference is based on the left visual stimulus and the right visual stimulus.

[0023] According to various embodiments, the method may further include a computer program that provides instructions for a computing system to perform the steps of the method according to the third embodiment.

[0024] The present invention will be better understood by referring to the detailed description, in conjunction with non-limiting embodiments and the accompanying drawings. [Brief explanation of the drawing]

[0025] [Figure 1A] This figure shows illustrative schematic diagrams of various embodiments of the use of a system 100 for detecting bodily responses to a visual stimulus 116. [Figure 1B]A diagram showing examples of binocular separation presentation of visual stimuli 116 and fused monocular perception in balanced and unbalanced binocular systems according to various embodiments. [Figure 1C] A diagram showing examples of binocular separation presentation of visual stimuli 116 and fused monocular perception in balanced and unbalanced binocular systems according to various embodiments. [Figure 1D] A diagram showing examples of binocular separation presentation of visual stimuli 116 and fused monocular perception in balanced and unbalanced binocular systems according to various embodiments. [Figure 2A] A diagram showing examples of various types 200 of a subject's body posture 140 in response to visual stimuli 116 according to various embodiments. [Figure 2B] An exemplary diagram of the measurement of a subject's body posture 140 in response to visual stimuli 116 according to various embodiments. [Figure 2C] A diagram showing a part of an exemplary schematic diagram of a system 100 that provides body posture response information 150 according to various embodiments. [Figure 3] An exemplary schematic diagram showing the usage conditions of a system 300 according to various embodiments. [Figure 4A] A diagram showing an example of a schematic diagram of the correction of visual balance 310 according to various embodiments. [Figure 4B] A diagram showing an example of a schematic diagram of the correction of visual balance 310 according to various embodiments. [Figure 4C] A diagram showing an example of a schematic diagram of the correction of visual balance 310 according to various embodiments. [Figure 4D] A diagram showing an example of a schematic diagram of the correction of visual balance 310 according to various embodiments. [Figure 4E] A diagram showing an example of a schematic diagram of the correction of visual balance 310 according to various embodiments. [Figure 4F] A diagram showing an example of a schematic diagram of the correction of visual balance 310 according to various embodiments. [Figure 5]This figure shows schematic examples of the use of a system 500 for detecting bodily responses to visual stimuli 116 and subsequent correction of visual balance 310 according to various embodiments. [Figure 6] This is a schematic diagram illustrating exemplary operating conditions for System 600 according to various embodiments. [Figure 7A] As examples, schematic diagrams of methods 700A and 700B for detecting bodily responses to a visual stimulus 116 according to various embodiments are shown. [Figure 7B] As examples, schematic diagrams of methods 700A and 700B for detecting bodily responses to a visual stimulus 116 according to various embodiments are shown. [Figure 8] This is an illustrative schematic diagram of a method 800 for detecting a bodily response to a visual stimulus 116, according to various embodiments. [Modes for carrying out the invention]

[0026] The following detailed description refers, for illustrative purposes, to the accompanying drawings illustrating specific details and embodiments in which this disclosure may be implemented. These embodiments are described in sufficient detail to enable those skilled in the art to implement this disclosure. Other embodiments may be used without departing from the scope of this disclosure, and structural and logical modifications may be made. The various embodiments are not necessarily mutually exclusive, as several embodiments can be combined with one or more other embodiments to form new embodiments.

[0027] Features described in relation to an embodiment may be applicable to the same or similar features in other embodiments. Features described in relation to an embodiment may be applicable to other embodiments even if they are not explicitly described in those other embodiments. Furthermore, additions and / or combinations and / or substitutions that describe features related to an embodiment may be applicable to the same or similar features in other embodiments.

[0028] The disclosures described herein as illustrative may be implemented appropriately without any one or more elements, one or more limitations not specifically disclosed herein. Accordingly, terms such as “comprise,” “include,” and “contain” should be interpreted broadly without limitation. Variations of the word “comprise,” “comprises,” or “comprising” should therefore be understood to mean that they include the integers or groups of integers described, but do not exclude any other integers or groups of integers. In addition, the terms and expressions used herein are used as descriptive terms, not limiting terms, and there is no intention to exclude any equivalents of the features or parts thereof that are illustrated and described, but it should be recognized that various modifications are possible within the scope of this disclosure. Accordingly, although this disclosure is described specifically in exemplary embodiments and optional features, it goes without saying that modifications and variations of this disclosure embodied herein may be used by those skilled in the art.

[0029] In relation to various embodiments, the articles “a,” “an,” and “the” used in reference to features or elements include reference to one or more of those features or elements. As used herein, the term “and / or” includes any and all combinations of one or more of the related enumerated items.

[0030] The reference numerals in parentheses in the claims are provided for the purpose of facilitating the understanding of this disclosure and do not limit the claims.

[0031] In various embodiments, the term “visual stimulus” as used herein may refer to the perception of electromagnetic waves (e.g., light) that elicit specific functional responses in the subject’s eyes and brain to result in the neural processing and construction of a recognized image via the visual pathway. For example, a visual stimulus may refer to an image which may have shape, color, and / or depth. In another embodiment, a visual stimulus may be static or moving, for example, moving in a coherent manner or in a random manner with variable speed. While we do not wish to be bound by theory, visual reception occurs in the subject’s retina, where photoreceptor cells (e.g., cones and rods) detect the visual stimulus, convert them into nerve impulses, which are transmitted through the optic nerve to the brain to construct a recognized image.

[0032] In various embodiments, the term “bodily response” as used herein may refer to one or more responses from the body of a subject. For example, a bodily response may include responses from parts of the body such as the eyes, hands, head, upper or lower limbs (e.g., arms or legs), and / or torso (e.g., torso). In another embodiment, a bodily response may include responses from the entire body of the subject. A bodily response may also include reflexes, which refer to involuntary and instantaneous actions by part or all of the body of the subject. Examples of reflexes may include motor and / or optokinetic nystagmus reflexes. In connection with this disclosure, a bodily response may be a body posture, generated as a response to or in response to a visual stimulus.

[0033] In various embodiments, the term “eyewear” as used herein may refer to optical articles configured to be worn by a user on or in relation to the eyes, for example, in front of the user’s eyes. For example, eyewear may be selected from the group of eyeglasses, sunglasses, head-mounted devices, augmented reality devices, and virtual reality (VR) devices. In various embodiments, eyewear may be electronically active (i.e., electronically powered) or electronically passive (e.g., not electronically powered or electronically component-free). Eyewear may include one or more lenses and frames.

[0034] In various embodiments, the term "lens" may have corrective power (e.g., multifocal lenses, prescription lenses for refractive errors) or may not have corrective power (e.g., planar lenses). In various embodiments, the lens may be transparent, colored (e.g., gray, pink, blue, brown, etc.), or polarized.

[0035] Any reference to “frame” in this specification refers to a part of eyewear that is not a lens portion, and it is understood that, for example, eyeglasses in eyewear may include a frame and may include lenses attached to the frame, and unless otherwise expressly indicated, the lenses are not part of the frame.

[0036] In various embodiments, the term “sensor” as used herein may refer to a device that detects, for example, measures the physical properties of a subject’s physical response. In various other embodiments, the sensor may be an image sensor. For example, the image sensor may be located inside a camera (e.g., a digital camera) configured to capture a stream of still images or moving images (e.g., video), and thus may detect a subject’s physical response (e.g., body posture) in response to a visual stimulus. In a further embodiment, the subject’s physical response (e.g., body posture) may be obtained from the output of the image sensor (e.g., video). For example, software may be used to detect motion and provide measurements of the subject’s body posture within its field of view. The image sensor may be a solid-state device that converts light waves into electrical signals to form a digital image of a target, and may be a charge-coupled sensor (e.g., a CCD), an active pixel sensor (e.g., a CMOS sensor), or a LiveMOS sensor. In various other embodiments, the sensor may be a motion sensor, and may be selected from the group consisting of accelerometers, gyroscopes, gesture detectors, or combinations thereof. For example, an accelerometer may be used to measure the linear acceleration and tilt angle of a subject, for example, when the subject is moving. In a further embodiment, the accelerometer may detect changes in the position of the subject's whole body, upper or lower limbs (for example, when the subject is walking), head (for example, head tilt), or eyes. Non-limiting embodiments of the accelerometer include single accelerometers and multi-axis accelerometers. In a further embodiment, the motion sensor may be a gyro sensor (e.g., a gyroscope) that senses angular velocity, for example, rotational motion and orientation (for example, tilt). In connection with this disclosure, the sensor is configured to detect the subject's bodily response in response to a visual stimulus.

[0037] In various embodiments, the circuit may include analog circuits or components, digital circuits or components, or hybrid circuits or components. Any other type of implementation of each of the functions described in more detail below may also be understood as “circuits” in alternative embodiments. A digital circuit may be understood as any type of logic implementation entity, which may be a dedicated circuit configuration or processor that executes software, firmware, or any combination thereof stored in memory. Accordingly, in various embodiments, the “control circuit” may be a digital circuit, for example, a hardwired logic circuit, or a programmable processor, for example, a programmable logic circuit such as a microprocessor (e.g., a composite instruction set computer (CISC) processor or a reduced instruction set computer (RISC) processor). The “control circuit” may also include software, for example, any type of computer program, for example, a processor that uses virtual machine code such as Java, for example, to execute a computer program.

[0038] Figures 1A–1D show illustrative schematic diagrams of the use of system 100 for detecting bodily responses to visual stimuli 116. Figure 1A shows an overview of the exemplary system 100. System 100 includes eyewear 110, which may be worn by the subject in front of the subject's eyes, for example. The eyewear 110 may transmit the visual stimulus 116 to the subject's eyes as a binocularly separated visual stimulus, such that the eyewear 110 transmits the left visual stimuli 112 through the left side of the eyewear 110 and the right visual stimuli 114 through the right side of the eyewear 110. In other words, the eyewear 110 is configured to present the visual stimulus 116 binocularly separated so that the subject sees separate and independent visual fields with each eye. For example, the eyewear 110 transmits binocularly separated presentations of the same visual stimulus 116 (e.g., an image) as the left visual stimulus 112 and the right visual stimulus 114. In a further embodiment, the left visual stimulus 112 may differ from the right visual stimulus 114. For example, the right visual stimulus 114 may be modified in terms of orientation (e.g., tilt, rotation), position, contrast, brightness, spatial frequency content, direction of motion, and speed of motion compared to the left visual stimulus 112, and vice versa.

[0039] System 100 also includes a sensor 120 configured to measure the body posture 140 of the subject's body when the subject is wearing eyewear 110 and therefore viewing the left visual stimulus 112 and the right visual stimulus 114. The sensor 120, which may include an image sensor or a motion sensor, provides a measurement of the subject's body posture 140 in response to the visual stimulus 116. For example, the sensor 120 may detect the subject's body posture 140, convert the detected measurement into an electrical signal, and store it in the sensor 120 (e.g., in memory within the sensor 120) before transmitting it to the control circuit 130. In another embodiment, the measurement of body posture 140 may be transmitted to the control circuit 130 immediately (e.g., at acquisition).

[0040] The system 100 further includes a control circuit 130 that can be operably coupled to the eyewear 110 and sensor 120 so that the control circuit 130 communicates with the eyewear 110 and sensor 120 while in operation. According to various embodiments, the control circuit 130 is configured to perform the following steps: (i) receive an electrical signal including a measurement of the subject's body posture 140, for example, a measurement of the body posture 140 provided by sensor 120; (ii) provide body posture response information 150 based on the measurement of the body posture 140 by, for example, performing a first calculation algorithm to calculate the body posture response information 150; and (iii) identify a deviation 160 of the body posture response information 150 to a reference based on the left visual stimulus 112 and the right visual stimulus 114 by, for example, performing a second calculation algorithm to identify a deviation 160.

[0041] Figures 1B-1D show schematic diagrams of binocular separation presentation of a visual stimulus 116 as an example. Referring to Figures 1B and 1C, the binocular separation presentations 170 and 180 of the same static visual stimulus 116 (e.g., an image of a shape) may be presented as the left visual stimulus 112 and the right visual stimulus 114, and may be rotated (or tilted) in different directions. In another example, a still image may be presented as the left visual stimulus 112, and the right visual stimulus 114 may include the same image but in motion. Figure 1D shows a schematic diagram 190 illustrating the movement of the left visual stimulus 112 and the right visual stimulus 114. For example, the image presented as the left visual stimulus 112 (e.g., a dot) may move in a coherent manner (e.g., clockwise or counterclockwise), while the image presented as the right visual stimulus 114 (e.g., a dot) may move in a random manner, for example, as a random dot kinetogram. In a further embodiment, the images presented as the left visual stimulus 112 and the right visual stimulus 114 may move at a variable speed; for example, the dot presented as the left visual stimulus 112 may rotate at 30° / s, and the dot presented as the right visual stimulus 114 may rotate at 60° / s. According to various embodiments, non-limiting embodiments of the visual stimulus 116 may include a sinusoidal grid, kinetograms of various shapes (e.g., dots, squares), or mazes of subject movement (e.g., walking) trajectories, paths, or patterns. In connection with this disclosure, the terms “left” and “right” are defined, for example, relative to the subject, from a reference point of the subject.

[0042] The integration of ocular dominance and binocular separation presentation of visual stimuli will be described with reference to the examples shown in Figures 1B-1D from the subject's perspective. Ocular dominance relates to the preference for visual input from one eye to the other (e.g., the subject's dominant eye). Currently, ocular dominance may be clinically identified using binocular balance (e.g., ocular weighting), which refers to the contribution of each eye to binocular perception. In particular, the human visual system processes and combines visual stimuli from each eye, e.g., left visual stimulus 112 and right visual stimulus 114, to form a fused monocular visual perception (e.g., a single recognized image formed by the brain). The fused monocular visual perception changes with the contribution of each eye to binocular perception and the contrast of the monocular images (also known as contrast gain control). For example, the orientation or position of the fused monocular visual perception may be the average orientation or position of two monocular images (e.g., left visual stimulus 112 and right visual stimulus 114) weighted by ocular dominance and their contrast. Therefore, this disclosure enables the objective evaluation of ocular dominance, for example, as a quantity of perceptual imbalance. As a result, ocular dominance may be objectively described, for example, as a quantity, quantification, or percentage of imbalance or ocular dominance. In other words, ocular dominance is not simply described in a binary way, such as "left eye or right eye dominance."

[0043] In various embodiments, the term “positive (+) angle θ” may refer to a clockwise rotation or tilt from the subject’s reference point. Similarly, the term “negative (-) angle θ” may refer to a counterclockwise rotation or tilt from the subject’s reference point. For example, a +30° rotation or tilt may refer to a 30° clockwise rotation or tilt of the image from the subject’s reference point. In a further embodiment, a -30° rotation or tilt may refer to a 30° counterclockwise rotation or tilt of the image from the subject’s reference point. In relation to angles, the expression “from the subject’s reference point” may mean that the angle is indicated and measured from the position of the subject wearing eyewear while looking at the drawing, and does not mean the subject’s subjective cognitive perception.

[0044] Figure 1B shows a binocular-separated presentation 170 of a visual stimulus 116 and a fused monocular visual perception 172 in a balanced binocular system, where each eye contributes equally to the binocular visual perception. A binocular-separated visual stimulus 116 with the same contrast but opposite rotation or tilt, for example, the left visual stimulus 112 rotated or tilted -10° along the x-axis (e.g., the horizontal plane) and the right visual stimulus 114 rotated or tilted +10° along the x-axis, may be presented via the left and right eyes, respectively, from the subject's reference. In a subject with a balanced binocular system, the fused monocular visual perception 172 is an image with 0° rotation or tilt (i.e., zero orientation) because each eye contributes equally to the fused monocular visual perception 172. Conversely, Figure 1C shows a binocular-separated presentation 180 of a visual stimulus 116 and a fused monocular visual perception 182 in an unbalanced binocular system. Similar to Figure 1B, visual stimuli 116 with the same contrast are presented in a binocular separation manner with equal but opposite rotation or tilt. The fused monocular visual perception 182 does not have a 0° rotation or tilt (i.e., zero orientation), but rather an orientation that favors the monocular perception of the dominant eye, which may be, for example, the subject's right eye in Figure 1C (e.g., "right eye dominant"). For example, the fused monocular visual perception 182 is rotated or tilted by +5° and thus oriented favorably to the right visual stimulus 114. Figure 1D shows a binocular separation presentation 190 of a random dot kinetogram visual stimulus 116 and an exemplary fused monocular visual perception 192. The left visual stimulus 112 (e.g., a dot of a particular contrast) is presented to move in a coherent direction, and the right visual stimulus 114 (e.g., a dot of the same contrast) is presented to move in a random direction. In subjects with a balanced binocular system (e.g., a balanced motion coherence threshold), given a certain combination of left visual stimuli 112 and right visual stimuli 114 of images having a certain contrast and number (e.g., number of dots), and based on fused monocular visual perception 192, the subject may be able to accurately determine the direction in which the coherent dots are moving.Conversely, in subjects with an unbalanced binocular system (e.g., a high motion coherence threshold), if the same combination of left visual stimuli 112 and right visual stimuli 114 with certain contrast and numerical values ​​is provided, and based on fused monocular perception 192, the subject may not be able to accurately determine the direction in which the coherent dot is moving. Instead, the fused monocular perception 192 may prioritize the monocular perception of the dominant eye. Manipulation of the contrast and / or numerical value of either the left visual stimulus 112 and / or the right visual stimulus 114 may enable the subject to accurately determine the direction in which the coherent dot is moving.

[0045] Advantageously, this disclosure provides a system and method for objectively evaluating ocular dominance by (i) using a maze that provides visual stimuli related to a real-world scenario, such as a motor trajectory or path, and (ii) integrating binocular balance (e.g., eye weighting) with other sensory processes (e.g., the subject's body balance, gait, movement). This disclosure provides a system and method for objectively evaluating ocular dominance by measuring body posture 140, providing body posture response information 150, and identifying a deviation 160 of the body posture response information 150 from a criterion, where the deviation 160 is proportional to the degree of binocular imbalance. Accordingly, this disclosure presents a system and method for evaluating ocular dominance through other sensory processes, for example, by integrating ocular dominance with other sensory modalities, and is therefore more applicable to real-world multisensory scenarios.

[0046] Figure 2A shows various examples 200 of different types of body postures 140 of a subject in response to a visual stimulus 116. According to various embodiments, the body posture 140 may be measured by a sensor 120 and may be a stationary position 210 or a moving position 220. According to various embodiments, the stationary position 210 may include a resting or stationary position (e.g., no movement and / or activity). For example, the stationary position 210 may include a stop or abrupt stop during a movement 220, for example, when the subject slows down during walking 230 and suddenly stops or stops the movement of their limbs in response to a visual stimulus 116. According to various embodiments, the body posture 140 may also be a movement 220, for example, a movement in motion. For example, the movement 220 may be the movement 220 of the subject's entire body, for example, a walking 230 or running 232 position. In another embodiment, the movement 220 may be the movement 220 of a part of the subject's body, for example, the movement 220 of a limb (e.g., arm or leg) or torso. In further embodiments, the movement 220 of a part of the body may include movements of the hand 240 (e.g., grasping or gesture), the eye 242, the head, and / or the neck. The movement 220 may also include reflexes.

[0047] According to various embodiments, the sensor 120 detects a body posture 140 which may include a stationary position 210 and movement 220. For example, the sensor 120 may measure the pressure center position of the subject's body posture 140. In a further embodiment, the sensor 120 may measure postural adjustments / responses such as the subject's gait (e.g., the subject's posture during walking 230) and / or body balance (e.g., center of gravity).

[0048] Figure 2B shows an illustrative diagram of the measurement of a subject's body posture 140 in response to a visual stimulus 116. According to various embodiments, the measurement of body posture 140 may include a set of measurements including a first displacement 250 in a first direction D1 which may be inward-outward (e.g., along the x-axis) relative to the subject. For example, the first displacement 250 may include the subject's lateral sway or left-right movement during movement 220. The set of measurements may also include a second displacement 260 in a second direction D2 which may be in the anterior-posterior direction (e.g., along the y-axis) relative to the subject and may be perpendicular to the first direction D1. For example, the second displacement 260 may include the subject's anterior-posterior sway or anterior-posterior movement (e.g., walking 230) during movement 220. For illustrative purposes, the subject may be presented with a binocular separation visual stimulus 116 of a maze (e.g., a walking path). The left visual stimulus 112 may be tilted at -5° (e.g., 5° counterclockwise from the subject's reference point), and the right visual stimulus 114 may be tilted at +5° (e.g., 5° clockwise from the subject's reference point), and both the left visual stimulus 112 and the right visual stimulus 114 may have the same contrast. In a subject with an unbalanced binocular system, the fused monocular visual perception 270 causes the subject to walk forward and correct the perceived tilt 272, for example, the subject walks forward and corrects the perceived tilt of +2°. In other words, the subject's movement 220 detected by the sensor 120 may include a first displacement 250 in a first direction D1 (e.g., inward-outward) and a second displacement 260 in a second direction D2 (e.g., forward-backward). Conversely, in subjects with a balanced binocular system, the fused monocular visual perception 280 causes the subject to walk forward without any inclination 282, and without a first displacement 250 (e.g., a 0° sway) in a first direction D1, for example. In other words, the set of measurements includes a second displacement 260 (e.g., linear motion forward) in a second direction D2, but does not include the first displacement 250.

[0049] Figure 2C shows a portion of an exemplary schematic diagram of a system 100 that provides body posture response information 150. The control circuit 130 is configured to provide body posture response information 150 based on a set of measurements of body posture 140 in response to a visual stimulus 116. According to various embodiments, the measurements of body posture 140 may be transmitted to the control circuit 130 according to a predefined communication protocol, which may include wireless communication. The sensor 120 and the control circuit 130 may therefore have hardware and / or software protocols necessary for transmitting and receiving measurements of body posture 140. Examples of predefined communication protocols include Wi-Fi, Bluetooth, ZigBee, SigFox, LPWan, LoRaWan, GPRS, 3G, 4G, LTE, and 5G communication systems. For example, the sensor 120 may include a wireless communication device configured to transmit measurements of body posture 140 to the control circuit 130 via wireless communication. Alternatively, the sensor 120 may also be configured to transmit measurements of body posture 140 via wired communication (e.g., an electrical cable).

[0050] According to various embodiments, the body posture response information 150 may be based on a first displacement 250 in a first direction D1 which is inward-outward relative to the subject's body. For example, the body posture response information 150 may be calculated using a first displacement 250 of the subject's lateral left-right movement according to a first calculation algorithm. According to another embodiment, the body posture response information 150 may be based on a second displacement 260 in a second direction D2 which is forward-backward relative to the subject's body. For example, the body posture response information 150 may be calculated using a second displacement 250 of the subject's forward or backward movement. According to another embodiment, the body posture response information 150 may be based on a ratio 290 between the first displacement 250 in the first direction D1 and the second displacement 260 in the second direction D2, for example,

number

number

[0051] According to various embodiments, the first calculation algorithm may refer to an algorithm implemented by the control circuit 130 to identify body posture response information 150 based on a set of measurements of body posture 140. For example, the body posture response information 150 may be calculated based on the average (e.g., mean) or median measurement of the body posture 140 for a first displacement 250 and / or a second displacement 260.

[0052] According to various embodiments, the control circuit 130 is further configured to identify a deviation 160 (e.g., deflection or shift) of the body posture response information 150 with respect to a reference. For example, the control circuit 130 may implement a second calculation algorithm by subtracting the body posture response information 150 with respect to a reference to identify the deviation 160. The deviation 160 may be proportional to the degree of binocular imbalance and ocular dominance of the subject. According to various other embodiments, the deviation 160 of the body posture response information 150 with respect to a reference may be identified in a separate microprocessor (separate from the control circuit 130) at a location outside the system 100, for example, in a control center or in the cloud. For example, the deviation 160 may be calculated in a separate microprocessor (e.g., a computer) or a server in a cloud network according to the second calculation algorithm. In such embodiments, the control circuit 130 may be configured to transmit the body posture response information 150 to another microprocessor via wireless or wired communication, and vice versa.

[0053] According to various embodiments, the criterion may be predetermined based on a left visual stimulus 112 and a right visual stimulus 114. For example, the left visual stimulus 112 and the right visual stimulus 114 may be presented in such a way that they induce optical imbalance in the subject's body posture 140 (e.g., induce postural adjustments), and the criterion may be based on the left visual stimulus 112 and the right visual stimulus 114. In a further embodiment, the criterion may be predetermined based on the difference between the left visual stimulus 112 and the right visual stimulus 114 (e.g., rotation, tilt, contrast, brightness, variation in spatial frequency content). According to various embodiments, the criterion may be based on body posture response information 150 of the balanced binocular system in response to a predetermined visual stimulus 116. For example, visual stimuli 116 of the same image may be presented, having the same contrast and tilted equally in opposite directions (e.g., the left visual stimulus 112 may be oriented at -5° and the right visual stimulus 114 may be oriented at +5°). The postural response information 150 in the balanced binocular system may therefore include a measurement of the postural position 140 with or without a minimum first displacement 250 (e.g., medial-lateral) when the subject is moving forward. In other words, the criterion may be based on the fused monocular visual perception of a subject having a balanced binocular system in which each eye contributes equally. Thus, the mean orientation of the two monocular images is 0°, and the tilt is perceptually flattened in the fused monocular visual perception.

[0054] Figure 3 shows illustrative schematic diagrams of the usage conditions of System 300 according to various embodiments. System 300 may be based on System 100 as described in relation to Figures 1A-2C, and repeated descriptions are omitted. The eyewear 110 may further be configured to correct the visual balance 310 between the left visual stimulus 112 via the left side of the eyewear 110 and the right visual stimulus 114 via the right side of the eyewear 110. The correction of the visual balance 310 may be communicated to the eyewear 110 to correct the subject's body posture 140. For example, as shown in Figure 3, the control circuit 130 may include a module for correcting the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114. In another embodiment, the corrected visual balance 310 may be provided via a filter 610 (e.g., an electronically active filter), as described below. The corrected visual balance 310 may be configured to induce postural adjustments in a first direction D1 and / or a second direction D2. For example, a modified visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114 may reduce or increase the subject's sensory visual imbalance (e.g., optical imbalance). In a further embodiment, modification of the visual balance 310 may result in a specified imbalance in the subject's body posture 140.

[0055] According to various embodiments, the sensor 120 may further measure the body posture 140 in response to the correction of the visual balance 310 by the eyewear 110. For example, the sensor 120 may further detect a first displacement 250 in a first direction D1 and a second displacement 260 in a second direction D2 of the subject's body posture 140 in response to the correction of the visual balance 310.

[0056] Figures 4A to 4F show schematic examples of the correction of the visual balance 310 according to various embodiments. In the following description, the exemplary image correction is based on the x-axis (e.g., horizontal plane), y-axis (e.g., vertical plane), and z-axis (e.g., perpendicular to the x and y axes) of the Cartesian coordinate system.

[0057] According to various embodiments, the modification of the visual balance 310 may include a translation 400 of at least one of the left visual stimulus 112 and the right visual stimulus 114. The term “translation” as used herein refers to, for example, a geometric translation in Euclidean geometry, in which each point of the image presented in at least one of the left visual stimulus 112 and the right visual stimulus 114 moves by the same distance in a predetermined direction. Thus, the distance and direction between the sets of points of the image are preserved. For example, translation refers to the movement of the origin of the coordinate system. In other words, the position of the image may be changed, but the orientation and shape of the image may remain the same. In the embodiment shown in Figure 4A, the original image 410 is shifted in a direction parallel to the x-axis or the horizontal plane (e.g., translation 400 = f(Δx)). Thus, the modified image 412 may be identical to the original image 410 (e.g., in terms of shape and orientation), with a change in position along the x-axis. In other words, the modified image 412 is an isometric transformation of the original image 410 (e.g., mapped to different metric positions). Although not shown in Figure 4A, the translation 400 may also include a vertical translation 400 along the y-axis (e.g., translation 400 = f(Δy)), a translation 400 along the z-axis (e.g., translation 400 = f(Δz)), and further, it is assumed that the translation 400 may also include translations having both x, y, and / or z coordinates (e.g., translation 400 = f(Δx,Δy) or f(Δx,Δy,Δz)).

[0058] According to various embodiments, the modification of the visual balance 310 may include the rotation 420 of at least one of the left visual stimulus 112 and the right visual stimulus 114. The term “rotation” as used herein refers to the Euclidean geometric motion of an image about a fixed point (e.g., a center or plane of rotation, or the x, y, and z axes). For example, an image may be rotated clockwise or counterclockwise by an Euler angle θ along an axis which may be from the subject’s reference point. Thus, the orientation of the image may be changed, but the shape of the image may remain the same. In the embodiment shown in Figure 4B, the original image 430 may be rotated -10° along a vertical plane (e.g., the y-axis) (e.g., counterclockwise θ=10° from the subject’s reference point) to produce the modified image 432. In another embodiment, as shown in Figure 4B, the original image 430 may be rotated +10° along a vertical plane (e.g., the y-axis) (e.g., clockwise θ=10° from the subject’s reference point) to produce the modified image 434. Therefore, the shapes of the modified images 432 and 434 may be the same as the original image 430, or they may be rotated by a predetermined angle θ along a fixed point. Thus, the modified images 432 and 434 are isometric images of the original image 430. As is known to those skilled in the art, the rotation of the image may be two-dimensional (2D) or three-dimensional (3D) using an appropriate rotation matrix.

[0059] According to various embodiments, the correction of the visual balance 310 includes a translation 400 of the image presented in at least one of the left visual stimulus 112 and the right visual stimulus 114, and may further include a rotation 420. According to various embodiments, the translation 400 and / or rotation 420 of the image may induce a postural adjustment in the subject's body posture 140.

[0060] According to various embodiments, the eyewear 110 may include physical means for translating 400 and / or rotating 420 the image. For example, the eyewear 110 may include a phase shifter, such as a polarizer, which may be mounted on the lenses of the eyewear 110 to correct the visual balance 310. Alternatively, the translation 400 and / or rotation 420 of at least one of the left visual stimulus 112 and the right visual stimulus 114 may be caused by a control circuit 130.

[0061] According to various embodiments, the modification of the visual balance 310 may include a change in the luminance 440 of at least one of the left visual stimulus 112 and the right visual stimulus 114. The term "luminance" as used herein may refer to the intensity of light emitted or reflected from the surface of an image per unit area in a given direction, and may be quantified in lux. Referring to Figure 4C, the luminance of the original image 450 may be modified, for example, by decreasing or increasing to produce the modified image 452. In a further embodiment, the lux of the original image 450 may be decreased or increased to produce the modified image 452, thereby inducing a postural adjustment in the subject's body posture 140.

[0062] According to various embodiments, the modification of the visual balance 310 may include a change in the contrast 460 of at least one of the left visual stimulus 112 and the right visual stimulus 114. The term “contrast” as used herein refers to the difference in color (e.g., grayscale differentiation) and brightness of an object relative to other objects in the same field of view of a given image, which makes the object (in the image) distinguishable. For example, an image with a higher contrast level generally exhibits a greater degree of color or grayscale variation than an image with a lower contrast level. As shown in Figure 4D, the field of view of the original image 470 may include a dark object 472 on a bright background 474. The modification of the visual balance 310 may involve changing the contrast 460 of the image to produce a modified image 480 which includes a bright object 482 on a dark background 484. In other words, the contrast between the modified visual balance 310 and the background of the object in the field of view of the image may be changed to produce a contrast. For example, the contrast of at least one of the left visual stimulus 112 and the right visual stimulus 114 may be increased or decreased. As described above, fused monocular visual perception is the result of contributions from two monocular images, weighted by ocular dominance and their contrast. Therefore, significant postural adjustments to the subject's body posture 140 may be induced by altering the contrast of at least one of the left visual stimulus 112 and the right visual stimulus 114.

[0063] According to various embodiments, the modification of the visual balance 310 may include a change in the spatial frequency content 490 of at least one of the left visual stimulus 112 and the right visual stimulus 114. The term "spatial frequency content" as used herein may refer to the periodic distribution of light and dark within the visual field of a given image. High spatial frequencies may correspond to features such as sharp edges and fine details, while low spatial frequencies may correspond to features such as overall shape. As shown in Figure 4E, the original image 492 may have high spatial frequencies, and the modification of the visual balance 310 may result in a reduction or decrease in the spatial frequency content of the modified image 494. For example, the modified image 494 may include an image in which the number of cycles per m (e.g., cycles / m) is reduced or decreased compared to the original image 492. According to various embodiments, the change in spatial frequency content 490 may induce postural adjustments in the subject's body posture 140.

[0064] According to various embodiments, the correction of the visual balance 310 may include tilting 496 of at least one of the left visual stimulus 112 and the right visual stimulus 114. The term “tilt” as used herein refers to the inclination, gradient, or slope of an image in a particular direction. For example, an image may be tilted clockwise or counterclockwise by an angle θ, e.g., oblique or acute θ, along an axis which may be from the subject’s reference point. Accordingly, the orientation of the image may be changed, but the shape of the image may remain the same. In the embodiment shown in Figure 4F, the original image 497 may be a maze, e.g., a walking path or track. The original image 497 may be tilted by -5° (e.g., θ=5° counterclockwise from the subject’s reference point) to produce the corrected image 498. In another embodiment, as shown in Figure 4F, the original image 497 may be tilted by +5° (e.g., θ=5° clockwise from the subject’s reference point) to produce the corrected image 499. Therefore, the shape (and other characteristics) of the modified images 498 and 499 may be the same as the original image 497, or they may be tilted by a predetermined angle θ.

[0065] According to various embodiments, the eyewear 110 may include physical means to produce a correction of the visual balance 310 by bringing about changes in brightness 440, contrast 460, spatial frequency content 490, and / or tilt 496. For example, the eyewear 110 may include light intensity pattern adjustment configured to adjust (e.g., decrease or increase) the brightness 440, contrast 460, spatial frequency content 490, and / or tilt 496 of the original image. Alternatively, changes in brightness 440, contrast 460, spatial frequency content 490, and / or tilt 496 of at least one of the left visual stimulus 112 and the right visual stimulus 114 may be produced by a control circuit 130.

[0066] According to various embodiments, the modification of the visual balance 310 may include at least one of translation 400, rotation 420, change in brightness 440, change in contrast 460, change in spatial frequency content 490, change in tilt 496, or a combination thereof. For example, the modification of the visual balance 310 may include rotation 420 and a change in contrast 460. In another embodiment, the modification of the visual balance 310 may include translation 400 and a change in spatial frequency content 490. In yet another embodiment, the modification of the visual balance 310 may include tilt 496, a change in contrast 460, and a change in spatial frequency content 490. According to various embodiments, the modification of the visual balance 310 may include at least one of the left visual stimulus 112 and the right visual stimulus 114. For example, the left visual stimulus 112 may be modified (e.g., change in contrast 460, rotation 420, tilt 496), and the right visual stimulus 114 may remain unchanged, and vice versa. In further embodiments, both the left visual stimulus 112 and the right visual stimulus 114 may be modified, for example, the left visual stimulus 112 may include a different change from the change in the right visual stimulus 114. Alternatively, both the left visual stimulus 112 and the right visual stimulus 114 may be modified in a similar manner.

[0067] Referring to Figures 3-4F, the control circuit 130 may include a module that identifies a set of adjustment values ​​320 which may be provided to correct the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114. For example, the set of adjustment values ​​320 may include values ​​required to produce translation 400, rotation 420, changes in brightness 440, contrast 460, spatial frequency content 490, tilt 496, or a combination thereof, to provide a correction of the visual balance 310. In other words, correcting the visual balance 310 of at least one of the left visual stimulus 112 and the right visual stimulus 114 is based on the set of adjustment values ​​320 identified by the control circuit 130.

[0068] According to various embodiments, the set of adjustment values ​​320 may be specified to minimize or reach the deviation 160 between the body posture response information 150 and a reference.

[0069] According to one embodiment of the present disclosure, the set of adjustment values ​​320 may be based on a deviation 160 identified by the system 100, as described with reference to Figures 1A-2C. For example, the set of adjustment values ​​320 may include a value equal to the deviation 160 such that when viewing a visual stimulus 116 modified by the adjustment values ​​320, the subject's body posture 140 and body posture response information 150 may be equal to that of a reference. For example, the deviation 160 may be identified according to a second calculation algorithm (e.g., subtraction between body posture response information 150 and a reference).

[0070] According to another embodiment, the set of adjustment values ​​320 may be randomly determined to produce a modification of the visual balance 310. For example, the control circuit 130 may perform a third calculation algorithm to randomly modify the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114. For example, the control circuit 130 may increase or decrease the translation 400, rotation 420, brightness 440, contrast 460, spatial frequency content 490, and / or tilt 496 by predetermined values ​​to produce a modification of the visual balance 310. In a further embodiment, the control circuit 130 may provide a stepwise increase or decrease of 10% in the contrast 460, brightness 440, and / or tilt 496 of at least one of the left visual stimulus 112 and the right visual stimulus 114. A set of adjustment values ​​320 may be specified when the subject's body posture 140 in response to the correction of visual balance 310 reaches a baseline, or when the subject's body posture 140 in response to the correction of visual balance 310 is minimized to a predetermined level (for example, a level that may be "clinically acceptable," or a level that does not significantly affect the subject's postural balance).

[0071] Accordingly, the set of adjustment values ​​320 may provide values ​​necessary to correct or reduce ocular dominance or binocular imbalance in a subject so that the subject's fused monocular visual perception may reach, or may reach, that of a balanced binocular system (e.g., equal contributions from both eyes).

[0072] Advantageously, the systems and methods of the present invention (e.g., via a set of adjustment values ​​320) may be used to personalize and customize lenses and / or provide personalized treatment for subjects having an unbalanced binocular system, particularly for the diagnosis and / or treatment of ocular dominance in the human visual system. Furthermore, the present invention may provide systems and methods (e.g., via a set of adjustment values ​​320) for evaluating or testing such personalized or customized lenses. For example, the system may enable an objective evaluation of the customized lens based on a laboratory-controlled binocular separation input (e.g., a visual stimulus 116) and the subject's measured physical response, which may be compared to a standard.

[0073] Figure 5 shows a schematic diagram of the use of system 500 to detect the bodily response to a visual stimulus 116 and the subsequent correction of the visual balance 310 as an example. In system 500, the exemplary subject may be “right-eye dominant,” i.e., monocular perception from the subject’s right eye is stronger. The visual stimuli 116, 116’ may be a walking path or trajectory presented as left visual stimulus 112 and right visual stimulus 114, for example, a maze on a flat floor. Referring to the right side of system 500, the left visual stimulus 112 and right visual stimulus 114 may be identical but tilted in opposite directions. For example, the left visual stimulus 112 may be tilted by -5° (e.g., 5° counterclockwise from the subject’s reference point), and the right visual stimulus 112 may be tilted by +5° (e.g., 5° clockwise from the subject’s reference point). The subject's fused monocular perception 510 may favor monocular perception from the stronger eye (e.g., the right eye), and the subject may walk in a direction that favors monocular perception from the stronger eye, for example, with a +2° tilt. Sensor 120 detects measurements of the subject's body posture 140, which may include a first displacement 250 and a second displacement 260, and provides the measurements of body posture 140 to a control circuit 130 that identifies body posture response information 150 and the deviation of the body posture response information 150 from a reference. In the embodiment of Figure 5, the reference may be the fused monocular perception of the balance binocular system (e.g., without the first displacement 250).

[0074] The control circuit 130 may further identify a set of adjustment values ​​320 based on the deviation 160 according to a second calculation algorithm, or a set of adjustment values ​​320 according to a third calculation algorithm, to correct the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114. According to various embodiments, the correction of the visual balance 310 may be provided to minimize or reach the deviation 160 between the body posture response information 150 and a reference. For example, the correction of the visual balance 310 may provide a visual stimulus 116' that works in favor of the weaker eye (e.g., the left eye) by, for example, enhancing the signal of the left visual stimulus 112' (e.g., increasing the contrast and thus providing a contrast offset). The right visual stimulus 114 may be left unchanged or may be changed as well. In another embodiment (which may be combined with the previous embodiment), the modification of the visual balance 310 may provide a visual stimulus 116' directed towards the dominant eye (e.g., the right eye) by, for example, weakening the signal of the right visual stimulus 114 (e.g., reducing the contrast and thus providing a contrast offset). The left visual stimulus 112 may remain unchanged or may be similarly modified. In yet another embodiment, the modification of the visual balance 310 may include providing a visual stimulus 116'' that increases the signal directed towards the weaker eye and / or decreases the signal directed towards the dominant eye. For example, the visual stimulus 116'' may include a left visual stimulus 112 with increased contrast and tilt, and / or a right visual stimulus 114 with decreased contrast and tilt. Thus, the fused monocular visual perception 520 perceived by a subject with an unbalanced binocular system may be similar to that of a balanced binocular system. For example, the subject's body posture 140 may be equal to a standard (e.g., without a measurement of the first displacement 250). In other words, the correction of visual balance 310 provides compensation to the weaker eye of both eyes, or perceptually reduces the relative contribution provided by the dominant eye of both eyes, so that the fused monocular visual perception 520 is equal to that of the binocular balance system.

[0075] According to various embodiments, the sensor 120 may be detachably mounted on a subject to provide measurements of body posture 140. For example, the sensor 120 may be attached to the subject's entire body and may include a wearable full-body imaging or motion tracking suit or device. Thus, the sensor 120 provides measurements of the subject's entire body. In a further embodiment, the sensor 120 may be attached to a part of the subject's body and the measurements of body posture 140 may be for that particular part of the body. Non-limiting placement of the sensor 120 on a part of the subject's body may include the torso, limbs (e.g., arms or legs), hands, feet, head, neck, and eyes. In a further embodiment, the sensor 120 may be located on eyewear 110. In another embodiment, the sensor may be integrated on the eyewear 110. For example, the eyewear may be a VR device and the sensor 120 may be integrated on the device and provide measurements of the subject's head or eye posture 140 in response to a visual stimulus 116. In various embodiments, the sensor 120 may be located within an external display 620, such as a handheld device including a game console and / or mobile device, where the perceived binocular imbalance may be provided by a measurement of body posture 140 (e.g., the angle of inclination of the hand when the external display 620 is tilted). In various embodiments, the degree of binocular imbalance in response to a visual stimulus 116 may be proportional to a deviation 160 identified by a control circuit 130 or another microprocessor, or may be a function of the inclination angle or degree of inclination of the subject's body posture 140 as measured by the sensor 120.

[0076] According to various embodiments, the control circuit 130 may be located on the eyewear 110. For example, the control circuit 130 may be integrated into the frame of the eyewear 100, for example, the front part of the frame of the eyewear 110. According to various embodiments, the control circuit 130 may be located together with the sensor 120, for example, the sensor 120 and the control circuit 130 may be incorporated into the same circuit. According to various embodiments, the control circuit 130 may be located outside the eyewear 110 and / or sensor 120, for example, as a separate device inside the systems 100, 300, 500. For example, the control circuit 130 may be in a separate microprocessor operably coupled to the eyewear 110 and sensor 120. Alternatively, the control circuit 130 may be located outside the systems 100, 300, 500, for example, in a control center (for example, another location) or in a server in a cloud network. According to various embodiments, the control circuit 130 may receive measurements of body posture 140 via wired or wireless communication.

[0077] Figure 6 shows exemplary schematic diagrams of the operating conditions of System 600 according to various embodiments. System 600 may be based on Systems 100 and 300 described in relation to Figures 1A to 4F, and for brevity, repeated descriptions are omitted. System 600 may include an external display 620 configured to display visual stimuli 116. According to various embodiments, the external display 620 may be an electronic device including a visual display unit (e.g., monitor, screen) for displaying the visual stimuli 116. The external display 620 may be portable and may include a handheld device such as a smartphone, laptop, tablet, or game console. Alternatively, the external display 620 may be mounted in a fixed position and may include a projector screen. According to various embodiments, a control circuit 130 may control the visual stimuli 116 presented on the external display 620. According to various other embodiments, the visual stimuli 116 presented on the external display 620 may be controlled via an external processor (e.g., a computer, a server in a cloud network via wireless communication) or by a processor inside the external display 620 (e.g., a microprocessor in a handheld device).

[0078] The eyewear 110 may further include a filter 610, and the eyewear 110 may be coupled to an external display 620. For example, the eyewear 110 may allow a subject to see a visual stimulus 116 displayed on the external display 620. The filter 610 (e.g., an optical filter) may be configured to modify the properties of the visual stimulus 116 so that it is displayed as a left visual stimulus 112 and a right visual stimulus 114. In other words, the filter 610 may display the visual stimulus 116 as a binocular separation presentation. According to various embodiments, the filter 610 may be electronically passive or active. A passive filter 610 may include visual aids using prisms, mirrors, or lenses to modify the properties of the visual stimulus 116. Examples of passive filters 610 include polarization systems (e.g., polarizers) configured to allow only light waves of a specific polarization to pass through, lenses (e.g., prism foils) containing microscopically small prisms, and anaglyph presentations (e.g., anaglyph 3D goggles). Alternatively, the active filter 610 may include a filter that can be controlled by the control circuit 130 or an external processor (e.g., a computer, a server on a cloud network) to modify the characteristics of the visual stimulus 116 so that it is displayed as the left visual stimulus 112 and the right visual stimulus 114.

[0079] According to various embodiments, the filter 610 may further be configured to modify the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114. For example, the control circuit 130 may modify the visual balance 310 based on a set of adjustment values ​​320, and may provide commands to the active filter 610 to modify luminance 440, contrast 460, spatial frequency content 490, and tilt 496, and / or to translate 400 and rotate 420 at least one of the left visual stimulus 112 and the right visual stimulus 114. In a further embodiment, the passive filter 610 may be physically modified to provide modification of the visual balance 310. For example, the passive filter 610 may be replaced with another passive filter 610 configured to increase or decrease the contrast 420 and / or tilt 496 of at least one of the left visual stimulus 112 and the right visual stimulus 114.

[0080] Figures 7A and 7B show schematic diagrams of methods 700A and 700B for detecting bodily responses to a visual stimulus 116 according to various embodiments of the present disclosure, as examples. Referring to Figures 7A and 7B, methods 700A and 700B may include, in step 710, providing a left visual stimulus 112 via the left side of the eyewear 110 and a right visual stimulus 114 via the right side of the eyewear 110. For example, the eyewear 110 may be configured to provide the left visual stimulus 112 and the right visual stimulus 114, or may include a filter 610 configured to provide the left visual stimulus 112 and the right visual stimulus 114. In step 720, the method may include providing a sensor 120 for measuring the body posture 140 of the subject's body when the subject is wearing the eyewear 110. For example, the sensor 120 may be attached to part or all of the subject's body. In a further embodiment, the sensor 120 may be located in an external display 620. In step 730, the sensor 120 measures the body posture 140 of a subject who may respond to the left visual stimulus 112 and the right visual stimulus 114. Method 700A may also include, in step 740, using a control circuit 130 to generate body posture response information 150 based on the measured body posture 140. For example, the sensor 120 may provide the control circuit 130 with the measured body posture 140 via wired or wireless communication, and the control circuit 130 may generate the body posture response information 150 based on the measured body posture 140 according to a first calculation algorithm. In step 750, the control circuit 130 may identify the deviation 160 of the body posture response information 150 from a criterion based on the left visual stimulus 112 and the right visual stimulus 114. Alternatively, the deviation 160 of the body posture response information 150 from a criterion may be identified by another microprocessor (e.g., a computer, a server in a cloud network via wireless communication). According to various embodiments, the deviation 160 may be calculated according to a second calculation algorithm and may include the difference in body posture response information 150 with respect to a reference.

[0081] Referring to method 700A in Figure 7A, according to one embodiment, step 780 may include using a control circuit 130 to provide a set of adjustment values ​​320 based on the deviation 160 identified in step 750 (for example, based on a second calculation algorithm). The set of adjustment values ​​320 may be provided to minimize or reach the deviation 160 between the body posture response information 150 and a reference. Accordingly, in step 760, method 700A may include correcting the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114 based on the set of adjustment values ​​320 provided in step 780. For example, correcting the visual balance 310 may include translation 400, rotation 420, changes in brightness 440, contrast 460, spatial frequency content 490, tilt 496, or a combination thereof of at least one of the left visual stimulus 112 and the right visual stimulus 114. In step 770, the sensor 120 may further measure the subject's body posture 140 in response to the corrected visual balance 310.

[0082] Referring to method 700B in Figure 7B, according to another embodiment, step 790 may include using the control circuit 130 to provide a correction to the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114 to identify a set of adjustment values ​​320. For example, in step 760, the control circuit 130 may follow a third calculation algorithm which may include random corrections to the visual balance 310 between the left visual stimulus 112 and the right visual stimulus 114 to identify a set of adjustment values ​​320. In step 770, the sensor 120 may measure the subject's body posture 140 in response to the randomly corrected visual balance 310. In step 790, the set adjustment value 320 may therefore be achieved when the subject's body posture 140 in response to the correction of visual balance 310 reaches that of the baseline, or when the subject's body posture 140 in response to the correction of visual balance 310 is minimized to a predetermined level (for example, a level that may be "clinically acceptable," or a level that does not significantly affect the subject's postural balance).

[0083] Figure 8 shows illustrative schematic diagrams of a method 800 for detecting a bodily response to a visual stimulus 116 according to various embodiments. The method 800 includes, in step 810, providing the visual stimulus 116 as a left visual stimulus 112 via the left side of eyewear 110 and a right visual stimulus 114 via the right side of eyewear 110. For example, the eyewear 110 may be configured to modify the characteristics of the visual stimulus 116 so that the visual stimulus 116 is presented binocularly, or a filter 610 may be used. In step 820, a sensor 120 is provided to measure the body posture 140 of the subject's body when the subject is wearing eyewear 110. Thus, the sensor 120 measures the body posture 140 of the subject's body in response to the binocularly presented visual stimulus 116. Step 830 includes modifying at least one of the left visual stimulus 112 and the right visual stimulus 114. According to various embodiments, the correction of the visual balance 310 may include translation 400, rotation 420, change in brightness 440, contrast 460, spatial frequency content 490, tilt 496, or a combination thereof of at least one of the left visual stimulus 112 and the right visual stimulus 114. For example, the correction of the visual balance 310 may, for example, involve modifying the visual stimuli to increase the signal provided to the weaker eye of both eyes, decrease the signal provided to the dominant eye of both eyes, or a combination thereof, thereby creating a specified imbalance or inducing a significant postural adjustment in the subject's body posture 140. In step 840, the method 800 includes measuring the body posture 140 by the sensor 120 in response to the correction of the visual balance 310. Step 850 includes generating body posture response information 150 based on the body posture measurement obtained in step 840 by a microprocessor operably coupled to the eyewear 110 and the sensor 120. For example, the microprocessor may include the control circuit 130 described above, or may not include it, and the microprocessor may be configured to calculate body posture response information 150 according to the first calculation algorithm.

[0084] Step 860 includes identifying the deviation 160 of the body posture response information 150 to a reference based on the left visual stimulus 112 and the right visual stimulus 114. According to one embodiment, the identification of the deviation 160 may be performed by a microprocessor, such as a control circuit 130, which is operably coupled to the eyewear 110 and the sensor 120. Thus, the control circuit 130 generates the body posture response information 150 and further identifies the deviation 160 of the body posture response information 150 to a reference.

[0085] According to another embodiment, identifying the deviation 160 may be performed by another microprocessor (e.g., an external computer, a server in a cloud network). For example, the body posture response information 150 may be communicated to another microprocessor via wired or wireless means to identify the deviation 160.

[0086] According to various embodiments, Method 800 may be performed by a computing system configured to perform the steps of Method 800. For example, a computer program may include instructions for performing the steps of Method 800 and may detect a subject's physical response to a visual stimulus 116.

[0087] Advantageously, this disclosure provides a system and method that enables the objective evaluation of ocular dominance and its multisensory integration during motion. In particular, the system and method (i) use visual stimuli related to real-world scenarios and (ii) integrate binocular balance with other sensory processes. Accordingly, this disclosure presents a system and method for objectively evaluating ocular dominance through other sensory processes, for example, by integrating ocular dominance with other sensory modalities, which is more applicable to real-world multisensory scenarios.

[0088] While this disclosure has been specifically illustrated and described with reference to specific embodiments, it should be understood by those skilled in the art that various modifications in form and detail may be made within these without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is therefore intended to encompass all modifications that fall within the meaning and scope of the equivalents of the claims, as indicated by the appended claims.

Claims

1. A system (100) for detecting a bodily response to a visual stimulus (116), - Eyewear (110) that transmits a left visual stimulus (112) via the left side of the eyewear (110) and a right visual stimulus (114) via the right side of the eyewear (110), - A sensor (120) configured to measure the body posture (140) of the subject when the subject is wearing the eyewear (110), - A control circuit (130) that can be operably coupled to the eyewear (110) and the sensor (120), wherein, when operably coupled, the control circuit (130) - The sensor (120) receives the measured value of the body posture (140), - Provide body posture response information (150) based on the measured values ​​of the body posture (140), - Identify the deviation (160) of the body posture response information (150) from the reference, and the reference is based on the left visual stimulus (112) and the right visual stimulus (114), and a control circuit (130) and Equipped with, The eyewear (110) is configured to correct the visual balance (310) between the left visual stimulus (112) via the left side of the eyewear (110) and the right visual stimulus (114) via the right side of the eyewear (110), The system (300) further measures the subject's body posture (140) in response to the correction of the visual balance (310) by the eyewear (110) of the sensor (120).

2. The modification of the visual balance (310) includes translation (400), rotation (420), tilting, or a combination thereof of at least one of the left visual stimulus (112) and the right visual stimulus (114). The system (300) according to claim 1.

3. The modification of the visual balance (310) includes a change in the brightness (440) of at least one of the left visual stimulus (112) and the right visual stimulus (114). The system (300) according to claim 1.

4. The modification of the visual balance (310) includes a change in the contrast (460) of at least one of the left visual stimulus (112) and the right visual stimulus (114). The system (300) according to claim 1.

5. The modification of the visual balance (310) includes a change in the spatial frequency content (490) of at least one of the left visual stimulus (112) and the right visual stimulus (114). The system (300) according to claim 1.

6. The measurement of the body posture (140) includes a set of measurement values ​​for a first displacement (250) in a first direction (D1) and a second displacement (260) in a second direction (D2). The first direction (D1) is inward-outward, The second direction (D2) is front-back and perpendicular to the first direction (D1). The system (300) according to claim 1.

7. The aforementioned body posture response information (150) is, (i) The first displacement (250), (ii) The second displacement (260), (iii) The ratio (290) between the first displacement (250) and the second displacement (260), (iv) combinations of those The system (300) according to claim 6, based on the above.

8. The control circuit (130) is further configured to identify a set of adjustment values ​​(320) and to correct the visual balance (310) between the left visual stimulus (112) and the right visual stimulus (114) in order to minimize the deviation (160) between the body posture response information (150) and the standard, or to reach the standard. The system (300) according to claim 1.

9. The eyewear (110) further comprises a filter (610), The eyewear (110) is coupled to an external display (620) that displays the visual stimulus (116). The filter (610) is configured to modify the characteristics of the visual stimulus (116) so that the visual stimulus (116) is displayed as the left visual stimulus (112) and the right visual stimulus (114), and is further configured to correct the visual balance (310) between the left visual stimulus (112) and the right visual stimulus (114). The system (600) according to claim 1.

10. A method (700A, 700B) for detecting a bodily response to the visual stimulus (116) as described in claim 1, - To provide the left visual stimulus (112) via the left side of the eyewear (110) and the right visual stimulus (114) via the right side of the eyewear (110) (710), - To provide the sensor (120) for measuring the body posture (140) of the subject when the subject is wearing the eyewear (110), - Measuring the body posture (140) using the sensor (120) (730), - Using the control circuit (130), generate the body posture response information (150) based on the measured value of the body posture (140) (740), - Using the control circuit (130), identify the deviation (160) of the body posture response information (150) with respect to the reference (750), Methods that include...

11. - Using the control circuit (130), correct the visual balance (310) between the left visual stimulus (112) via the left side of the eyewear (110) and the right visual stimulus (114) via the right side of the eyewear (110) (760), - Using the sensor (120), measure the subject's body posture (140) in response to the corrected visual balance (310) (770), The method according to claim 10 (700A, 700B), further comprising the above.

12. (i) Using the control circuit (130), provide a set of adjustment values ​​(320) based on the deviation (160) of the body posture response information (150) with respect to the reference (780), or (ii) Using the control circuit (130), provide the modification of the visual balance (310) between the left visual stimulus (112) and the right visual stimulus (114) to identify the set of adjustment values ​​(320) (790) It further includes, The set of adjustment values ​​(320) is provided to minimize the deviation (160) between the body posture response information (150) and the standard, or to reach the standard. The method according to claim 11 (700A, 700B).

13. A method (800) for detecting a bodily response to a visual stimulus (116), - To provide a left visual stimulus (112) via the left side of the eyewear (110) and a right visual stimulus (114) via the right side of the eyewear (110) (810), - To provide a sensor (120) for measuring the body posture (140) of the subject when the subject is wearing the eyewear (110), - Modifying at least one of the left visual stimulus (112) and the right visual stimulus (114) (830), - Measuring the body posture (140) using the sensor (120) (840), - A microprocessor (130) operably coupled to the eyewear (110) and the sensor (120) generates body posture response information (150) based on the measured body posture (140) (850), - Identifying (860) the deviation (160) of the body posture response information (150) from a reference using the microprocessor or another microprocessor, wherein the reference is identified based on the left visual stimulus (112) and the right visual stimulus (114), Methods that include...

14. A computer program comprising instructions for causing a computing system to perform the steps (800) of the method according to claim 13.

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