103 results about "Congenital strabismus" patented technology

An apparatus for displaying a virtual image to perform training for correction of strabismus includes an image capturing section for capturing an outside image such that a normal line-of-sight direction is always positioned at a center of the captured image, a display section for displaying the outside image captured by the image capturing section, an ocular optical system disposed in front of an eye, having a transparent plate-formed member facing the eye, and a control section that moves the image displayed by the display section from a strabismic line-of-sight direction to the normal line-of-sight direction. The apparatus leads light from the display section to the eye by the ocular optical system to provide the virtual outside image displayed by the display section, and makes light from the outside pass through the plate-formed member to lead the light to the eye to provide a real image of the outside.

The invention relates to external oculentum for treating amblyopia, astigmatism, strabismus, myopia and visual fatigue of teenagers and a preparation method thereof. The oculentum comprises the following components: 20 to 40 parts of feather cockscomb seed, 20 to 40 parts of flower of small pipewort, 20 to 50 parts of raspberry, 30 to 60 parts of cassia seed, 25 to 50 parts of medlar, 30 to 60 parts of pale butterflybush flower, 20 to 40 parts of saffron, 20 to 40 parts of wild chrysanthemum, 30 to 50 parts of danshen root, 30 to 50 parts of largetrifoliolious bugbane rhizome, 20 to 40 parts of mint, 20 to 40 parts of storax, 30 to 50 parts of calamine, 2,000 to 3,000 parts of Vaseline, 300 to 500 parts of liquid paraffin and appropriate amount of water. The external oculentum is prepared by removing impurities from the medicinal raw materials; decocting, filtering and concentrating the medicinal raw materials; and adding the Vaseline and the liquid paraffin. The external oculentum is scientifically prepared according to compatible principle of monarch, minister, assistant and guide of Chinese medicinal theory. The external oculentum can effectively treat the amblyopia, the astigmatism, the strabismus, the myopia, the visual fatigue and ametropia of the teenagers, and has the advantages of exact curative effect and no toxic or side effects on human bodies.

The present invention discloses a strabismus testing apparatus. It includes the following several portions: infrared camera head, image-collecting card, microprocessing system, eyeball stimulation system and infrared filter. Said invention also provides its working principle and its concrete operation method.

The invention discloses a strabismus bias phase center position multi-beam satellite-bone synthetic aperture radar (SAR) imaging method. The method comprises the following steps: corresponding phase compensation is conducted to echo data received by beams of each position by utilizing an azimuth phase compensation function H1, n (f, t); the Doppler frequency spectrum of the echo data after the phase compensation are rebuilt in a distance-Doppler domain by utilizing a position reconstruction filter group P (fa), and Doppler course of a target echo signal is recovered by utilizing a spectrum reduction function H2 (fr, t); and focus imaging is conducted to the echo data by utilizing an improved random multiple access (RMA) algorithm. According to the strabismus bias phase center position multi-beam satellite-bone SAR imaging method, the Doppler course of the echo signal is adjusted through position preprocessing operation, the problem that sampling rate of position signals is insufficient is solved, the Doppler course is rebuilt through strabismus position multi-beam signals, and the problem that position multichannel is not sampled uniformly is solved. Long-distance migration correction and focus imaging are achieved eventually through the RMA algorithm which is based on improved Stolt interpolation operation.

The invention relates to a mobile medical device, in particular to a strabismus diagnosis device based on a mobile platform. The strabismus diagnosis device based on the mobile platform comprises an image input device, an image pretreatment device, an image smoothing and gray level conversion processing unit, an ocular region positioning device, a corneal limbus positioning device, a reflection point positioning device, an offset calculation device and an image output device, wherein the image input device is used for obtaining an ocular region image, and the image pretreatment device also comprises an image resolution regulation image. On the basis of the mobile platform, the strabismus diagnosis device based on the mobile platform can be installed on the intelligent mobile equipment, such as a smart phone and a tablet personal computer, the strabismus detection can be conveniently carried out, and the operation can be conveniently carried out.

The present invention belongs to the field of ophthalmic medical equipment and is one strabismus measuring device and method. The strabismus measuring device of the present invention includes a head fixing unit an eye video camera, a system calibrator, a stared target, a light source and a computerized image analysis system. The strabismus measuring instrument designed based on the present invention can measure strabismus fast, precisely and objectively.

The invention discloses a detecting and training system for a binocular fusion function. A group of red and green fusion pictures including images, such as animals, plants, Chinese characters, letters and numbers, are designed through the touch screen control technology according to fusion demand; fusion capacity is trained through a point contact or sliding touch method according to a red and green complementary principle; relevant data is recorded into a memory and is transmitted to a doctor client through a wireless network transmission device, so that the purpose that a doctor remotely monitors and guides the detecting and training of the fusion function of a patient is realized. By performing convergence and divergency capability training on recessive strabismus, intermittent strabismus and postoperative residual strabismus, the system improves the fusion function, and further promotes the recovery of stereoscopic vision. The therapy is further applicable to the improvement and treatment of myogenic asthenopia.

An M toxin of type A botulinum toxin (HA-negative substance) and a mixture of L toxin and LL toxin (HA-positive substance) are compared and examined in inhibitory action for neuromuscular transmission and therapeutic index. As a result, it is found that M toxin of type A botulinum toxin has characteristics of: 1) having an excellent inhibitory action for neuromuscular transmission; 2)showing a high therapeutic index; 3) showing a low antigenicity and 4) suffering from little reduction in efficacy even after repeatedly administered, compared with the mixture of L toxin and LL toxin. Owing to these characterics, the M toxin of type A botulinum toxin is particularly useful as a therapeutic agent for diseases caused by hypermyotonia such as strabismus, blepharospasm, facial spasms, spasmodic torticollis, paralysis after cerebral apoplexy, infantile cerebral paralysis, spasmodic phonopathy, headache such as migraine, chronic pain such as lumbago, stiff shoulder, muscular relaxation disorder accompanied with onset of Parkinson's disease or multiple sclerosis, myofascial pain syndrome, masticatory spasm, chronic anal fissure, urinary inconsistency, grinding of teeth, facial myokymia, tic, topical dystonia and wrinkles.

The invention relates to a perception correcting and training system on the basis of the binocular integration which comprises an integration perception function checker, an image controller controlled by a computer, an image branching device, 3D (three-dimensional) display equipment, a signal transmitter, 3D spectacles, a signal receiver of the 3D spectacles and a solid figure picture database. Two data buffer regions are arranged in a video card of the integration perception function checker, one of two similar pictures is respectively accommodated in each data buffer region and an initial position of image data can be changed in the buffer regions; the integration perception function checker automatically selects a plurality of training pictures which accord with an integration perception function of a trained person; the image controller controlled by the computer randomly selects the training picture; the image branching device simultaneously sends the solid figure picture to the 3D display equipment and the signal transmitter; and the working efficiency of the signal transmitter is the same with the working efficiency of the signal receiver, or is integral multiples of the working efficiency of the signal receiver. The perception correcting and training system on the basis of the binocular integration is convenient to use and low in cost, and has a good effect of correcting and training the amblyopia or the strabismus.

The invention discloses a target robust detection and defect identification method for the nuts and pins of a power grid. The method comprises the following steps of acquiring and screening a target picture set through an image acquisition module; labeling and storing the target picture set; constructing a deep learning model to form a training model; and detecting and identifying an augmented picture according to the training model. The invention further provides a target robust detection and defect recognition device for the nuts and pins of the power grid. At the training stage of a detection model, a deep neural network model training technology when the strabismus nut and pin samples are few is studied, and the automatic detection and defect identification of the robust strabismus with insufficient and unbalanced nut and pin samples are realized by utilizing a strabismus training data augmentation method based on perspective transformation.

A method for detecting strabismus in at least one image comprising a subject's eyes, wherein the at least one image has been obtained using an apparatus comprising a light source and a target offset from the light source, the method comprising, for each of the subject's left and right eyes: determining, from the image, a reflection offset distance, being the distance between a reference point of the eye and a reflection of a light source on the eye; determining a difference between the reflection offset distance and a reference reflection offset distance for the corresponding left or right eye, wherein the reference reflection offset distance has been determined based on relative positions of the light source, the target and the subject's head; and determining whether the difference is less than a difference threshold value for determining whether the subject has a strabismus.

Generally, the present invention relates to medical devices and a method of vision screening, and more particularly to a pediatric vision screening system and method thereof that identifies a risk factor for amblyopia or diagnoses amblyopia by measurement of microstrabismus. An embodiment of the invention is directed to a method of patient screening for risk factors for amblyopia which includes the steps of illuminating the eye with polarized light, scanning the polarized light about the eye, capturing the retro-reflected light emanating back from the eye, analyzing the retro-reflected light to determine ocular misalignment; and calculating a metric to determine if the patient passes or fails the screening test thereby providing an indication that the patient may have a risk of amblyopia based on either strabismus or anisometropia. The method is effective at detecting amblyopia related to focusing problems without the measuring the focus of the eye directly.

The invention relates to a method for accurately estimating the Doppler rate in a large-strabismus SAR imaging mode. The method comprises the steps that 100) distance walk compensation, distance bending correction and secondary distance compression are implemented on echo data to obtain a double-time-domain signal which is compressed in the distance direction; 101) a dechirp processing is implemented on the distance compressed data in an orientation time domain by utilizing a reference function Sdechirp(t); 102) FFT (Fast Fourier Transform) is implemented on the orientation direction data to change the data from the orientation time domain to an orientation frequency domain; 103) a special display point is selected from each distance door in a maximal energy method, the orientation-direction position of the point is estimated, and a compensation function Scomp(t) of each special display point is calculated according to the orientation-direction position; 104) windowing is implemented, data within the main fuzzy width of the special display point selected from each distance door is reserved, and data which has no contribution to estimation of the Doppler rate is abandoned; 105) reverse Fourier transformer is implemented, and space change phase is compensated in the orientation time domain; and 106) the Doppler rate is estimated in a classic MD algorithm.

The embodiment of the invention discloses a strabismus detection method based on a cascade convolutional neural network. The method comprises the steps that the strabismus images photographed by the camera are collated and a strabismus image library of the images is established; the cascade convolutional neural network is trained by using the face database iBUG23, LPFW24, Helen25 and AFW, and thelearning parameters in the cascade convolutional neural network are determined; the eyes of the strabismus images in the strabismus image library are segmented by using the completely trained cascadeconvolutional neural network; the eye iris of the strabismus images is segmented by using the Otsu algorithm after completing eye segmentation of the strabismus images; and whether the person has thestrabismus is determined according to the relative position relation of the iris in the eyes. The high recognition and segmentation capacity of the cascade convolutional neural network is fully utilized, whether the person has the strabismus can be efficiently and accurately determined through combination of the image processing algorithm and thus strabismus diagnosis and treatment of the patientcan be facilitated for the doctor.

The invention relates to a perception correcting and training system on the basis of the binocular simultaneous perception, which comprises a simultaneous perception function checker, an image controller controlled by a computer, an image branching device, 3D (three-dimensional) display equipment, a signal transmitter, 3D spectacles, a signal receiver of the 3D spectacles, a solid figure picture database, a picture image defuzzification device and an image gradient overlaying device. The simultaneous perception function checker automatically selects a plurality of training pictures which accord with a simultaneous perception function of a trained person; the image controller controlled by the computer randomly selects the training picture and the stereoscopic effect of a center figure is strengthened by the picture image defuzzification device and the image gradient overlaying device; the image branching device simultaneously sends the solid figure picture to the 3D display equipment and the signal transmitter; and the working efficiency of the signal transmitter is the same with the working efficiency of the signal receiver, or is integral multiples of the working efficiency of the signal receiver. The perception correcting and training system on the basis of the binocular simultaneous perception is convenient to use, and low in cost, and has a good effect of correcting and training the amblyopia or the strabismus.

A vision unscrambler for treating amblyopia, myopia, hyperopia and strabismus is composed of case body, main visual target board in the case body, and controller for controlling the flash variation of visual targets. A number of visual targets are arranged in the maximal visnal filed on said main visual target boards. The flash variation of visual targets forces eyes to move in the maximal visualfield, so exercising and coordinating the functions of eyes and promoting benigh development of eyes. Its advantage is short unscrambling period.

The invention discloses a full automatic synoptophore, belongs to ophthalmologic medical instruments of the field of photoelectric medical instruments and aims to solve the technical problem of providing a full automatic synoptophore. According to the technical scheme, the full automatic synoptophore comprises an electric control host and a digital information processing system; the host comprises an electric control eye position positioning, adjusting and metering mechanism, an electric control interpupillary distance adjusting and metering mechanism, a transverse electric control horizontal strabismus degree adjusting and metering mechanism, a transverse electric control vertical strabismus degree adjusting and metering mechanism and a transverse electric control rotating strabismus degree adjusting and metering mechanism; the digital information processing system comprises a host output socket, a personal computer, a computer interface card, a computer interface board, a PWM drive, a BM stepper motor drive and the like. The functional displacement or rotation is counted through a stepper motor. The personal computer is used for adjusting, controlling, measuring and recording all measurement data. The acquired detection results are recorded into detection result reports and are archived, and the full automatic detection, diagnosis and treatment effects are achieved.

The invention discloses a visual fusion functional trainer and a training method of the same, mainly used to rectify child strabismus and belonging to the ophthalmic medical apparatus technical field. The trainer comprises an outer casing component, a marker moving device, a head fixing device and a circuit control unit, wherein the head fixing device is arranged on the outer casing component to fix the head of a user; the marker moving device and the circuit control unit are arranged inside the outer casing component; a marker component on the marker moving device extends out of the outer casing component through an opening on the slipway on the outer casing component so as to be corresponding to the position of the head fixing device; and the circuit control unit is in electrical connection with the control end of the power-driven device of the marker moving device, thereby controlling the movement or the stop of the marker component on the marker moving device. The fusion functional trainer designed by the invention can realize quick and effective rectification of strabismus and trains the stereoscopic vision of a patient, thereby reaching the effect of improving eyesight.

The invention relates to a centrometer, which comprises a bracket for wearing, a control unit and a display device, wherein the display device is arranged on the bracket; and the control unit is electrically connected with the display device, and is used for controlling the display device to display the shape and position of a pattern for visual detection and to measure visual data. According to the centrometer, a visual detection image is displayed by using a display screen, and the shape and position of the visual detection image are controlled by using the control unit, so that an interpupillary distance can be measured accurately, and the centrometer is very safe for human eyes. Moreover, the centrometer can also be used for rapidly and accurately measuring the interpupillary distance when double eyes watch along a plurality of directions, the interpupillary distance and the like when a single eye watches along a plurality of directions, and the relative position relation of the left eye or right eye vision center of binocular vision or mono-vision. The centrometer can be further used for measuring the interpupillary distance and the position relation thereof conveniently during fitting of double-light or multi-light progressive addition lenses; and moreover, the centrometer is used for measuring the stress situation of ciliary muscle on the aspects of ophthalmology medicine and research and assisting in correcting strabismus.

The invention discloses an intelligent visual training instrument. According to the intelligent visual training instrument, automatic equipment, App software and a cloud server are used for physical training of eyes. The automatic equipment comprises a mechanical structure, an electronic circuit and embedded software. The App software comprises functional software for training items and control terminal software. The cloud server has the information storage and operation function and is used for storing information of users and equipment operators, managing permissions of the operators, storing training results, and working out a formula. After the control terminal software sends an operator login message to the server, the function interface is shown. Users and instruments are selected, connection is achieved through Bluetooth, and the equipment is controlled to select the training items. The equipment transmits results to the control terminal software through Bluetooth after training is completed, and the results are uploaded to the cloud server through the control terminal software. According to the intelligent visual training instrument, automatic control, intellectualization and data storage of various physical training items for the eyes are achieved, and the intelligent visual training instrument has great practical significance for preventing and treating myopia, hyperopia, strabismus, amblyopia, presbyopia and asthenopia.

The invention discloses a digital strabismus diagnosis method. The method includes the following steps: obtaining blindfold videos of a subject in different covering modes; performing image analysis on all frames in the blindfold videos to obtain pupil center coordinates and pupil position change information of eyes of the subject; and performing strabismus diagnosis according to the covering modes, a position of a visual target and the pupil position change information, and determining a squint angel by combining a prism covering strategy to obtain a strabismus diagnosis result. The inventionalso discloses a digital strabismus diagnosis device and system.

The invention discloses an onboard high-resolution strabismus bunching synthetic aperture radar (SAR) imaging method based on a sliding receiving window. The onboard high-resolution strabismus bunching SAR imaging method comprises the following steps of 1, reading original echo data and relevant imaging parameters; 2, performing azimuth linear frequency demodulation processing; 3, performing azimuth Fourier transformation processing; 4, performing azimuth linear frequency demodulation residual phase error compensation processing; 5, performing range Fourier transformation processing; 6, performing uniform compression processing; 7, performing stolt interpolation processing; 8, performing azimuth inverse Fourier transformation processing; 9, performing geometric correction processing; and 10, performing range Fourier transformation processing. The invention provides the onboard high-resolution strabismus bunching SAR imaging method based on the sliding receiving window in order to solve the problem that a method for imaging the onboard high-resolution strabismus bunching SAR original echo data based on a sliding receiving window technology does not exist at present.

The invention discloses an anti-strabismus LED display. The display comprises a mounting plate, a first guide rail, a rack, a second guide rail, a first sliding block, a second sliding block, a servomotor, a rotating shaft, a driving gear, a connecting plate, first supporting plates, second supporting plates, a motor, a control panel, an inclination angle adjusting shaft, an angle sensor, a swingarm, an LED display body, a wireless network module, a PLC controller and mounting holes, wherein the first guide rail, the rack and the second guide rail are fixed on one side of the mounting plate,and the first guide rail and the second guide rail are located on the two sides of the rack correspondingly; the first sliding block is arranged on the first guide rail, the second sliding block is arranged on the second guide rail, and the servo motor is fixed on one side of the first sliding block; and the output shaft of the servo motor penetrates through the first sliding block and is fixedlyconnected with one end of the rotating shaft through a coupler. According to the anti-strabismus LED display, the situation that strabismus is generated on the eyes of a viewer due to watching the display for a long time at the same position can be avoided, and the elevation angle of the LED display body is adjustable, so that the viewer can conveniently use the LED display body.

The invention discloses an eye muscle movement quantitative detection device, which comprises a housing and a liner which is arranged in the housing, wherein guiding mechanisms for guiding eyes to gaze at different positions are arranged in the liner; a camera, which is used for acquiring eye images, is additionally arranged in the housing; and an observing window is arranged on the outer surfaceof the housing. According to the quantitative detection device provided by the invention, an angle of strabismus and muscle force conditions of six eye muscles are recorded in a mode of images, so that solid-state image data can be provided for manual measurement or analysis by virtue of computer software, and subsequently, the reliability and repeatability of an examination result can be greatlyenhanced.

A strabismus degree measurer for children is disclosed. Its application includes obtaing the photo or video record of patient or the real-time special image taken by the measurer, editing the image to obtain useful data, automatic analyzing by software, calculating to obtain the type and degree of strabismus, and providing the therapeutic scheme.

The invention relates to a human eyes state detection method and a human eyes state detection device. The device comprises a modelling unit, an ocular region acquisition unit and a state judging unit, wherein the modelling unit is used for obtaining a facial image and building a facial model based on the facial image; the ocular region acquisition unit is used for acquiring ocular region information of faces according to the facial model; and the judging unit is used for judging state of human eyes according to the ocular region information, wherein the state of human eyes comprises a strabismus state and an amblyopia state. Clearly, the human eyes state detection method and the human eyes state detection device can detect the phenomena of strabismus and amblyopia through building a facial model, and provide good user experience.

The invention discloses a strabismus spaceborne bunching SAR PRT calibration distance changing migration method which includes the following steps. Firstly, a slope-distance-time change function R(t) and a distance fuzzy number n between a radar and a target are obtained. Secondly, a distance error square and the minimal rule are used and a target function F (delta, delta one and delta two) is simultaneously obtained. By solving the minimal value of the target function, ith impulse repetition time Ti and echoing window opening time delta are obtained. Thirdly, according to the ith impulse repetition time Ti and the echoing window opening time delta which are obtained in the second step, signal impulses are sequentially emitted and echoing signals are received. According to the strabismus spaceborne bunching SAR PRT calibration distance changing migration method, effective compensation for distance migration momentum is achieved by changing radar PRT; operation quantity of the method is little; after calibration, echoing waves of the same target appear within the same distance; and imaging processing difficulties are lowered. With the PRT calibration distance changing migration method, the phenomenon that width of an imaging mapping belt is lost due to distance migration is avoided and the width of the mapping belt of a satellite is increased.

The invention provides a method of adjusting a naked eye 3D television parameter based on human body detection and image processing. The method comprises the following steps of acquiring a position relation of human eyes and a naked eye 3D television screen in real time, wherein the position relation includes a sight angle and a distance; according to the position relation acquired in real time, calculating a deviation value of a current human eye position on a naked eye 3D television screen liquid crystal point; and according to the deviation value, adjusting a deviation amount of a naked eye 3D television screen display image in real time so that left and right eyes can watch a liquid crystal point of a corresponding area of the display image through a slit plate of the naked eye 3D television screen. In the method, the image processing is directly used and an extra hardware cost scheme is not needed; a ''crosstalk'' problem caused by 3D naked eye television strabismus based on a raster can be solved; an ornamental effect of the 3D naked eye television strabismus of a raster basis is increased; and a forceful support is provided for a naked eye 3D television technology based on a slit raster structure.