49 results about "Ophthalmologic examination" patented technology

The eye movement sensor comprises a helmet (1) adjustable to the head of a patient who is undergoing an ophthalmologic examination, in a unit with seat (10) and projection screen (11) of light spots in front, the same helmet (1) incorporating a front light projector (2) which emits a light spot towards the screen (11), as well as means of image recording of each one of the eyes, which records their movements captured from an angle which permits viewing the eye in all its positions. Said means of recording preferably consists of a video camera (6) disposed below the projector (2) of the helmet (1), focussing a pair of mirrors (7), incorporated on different sides of the lower part of the helmet (1) downward, under each eye respectively, to capture the specular reflection of its movements; or instead, two cameras (5) under each eye.

An ophthalmologic examination apparatus 1 projects a light onto a fundus oculi, detects the reflected light thereof, and forms a 3-dimensional image that represents the morphology of a retina based on the detected results. A stimulation-position specifying part 233 specifies, in the 3-dimensional image, a plurality of stimulation positions that correspond to a plurality of stimulation points Pi in a visual-field examination. A layer-thickness measuring part 235 analyzes the 3-dimensional image to find the layer thickness of the retina at each stimulation position. In addition, a displacement calculation part 234 specifies a related position of the stimulation position. A layer-thickness measuring part 235 finds the layer thickness of the retina at the related position.

The invention discloses a novel ophthalmologic examination head fixing device which structurally comprises a head fixing frame, a base and an examination apparatus. The examination apparatus is mounted on the base, the head fixing frame is arranged at the front of the examination apparatus, the bottom of the head fixing frame is connected to a side surface of the base, the head fixing frame comprises a support column, a fixing frame, a nut, a lifting rod, a chin fixing seat, left and right fixing frames, perforated holes, a forehead cushion and fixture blocks, a transverse rod of the L-shapedsupport column is arranged at the bottom of the support column, the support column is connected with a side surface of the base, an end of the vertical rod of the support column is connected with themiddle of the bottom of the fixing frame, and the end of the vertical rod and the middle of the bottom of the fixing frame are of integral structures. The novel ophthalmologic examination head fixingdevice has the advantages that each of the left and right fixing frames comprises a fixing sheet, a guy rope and an arc-shaped block, accordingly, the novel ophthalmologic examination head fixing device is simple in structure, convenient to manufacture and low in cost, can be replaced at any time and is easy to operate, and users can easily master the novel ophthalmologic examination head fixing device; the arc-shaped blocks in arc-shaped designs can cling to ear structures of human bodies, accordingly, good fixing effects can be realized, and patients can be prevented from swaying in the left-right directions.

The present invention relates to measuring arm of eye axamination apparatus using slip lamp inlegrated optical correlation cromatography, it includes slip lamp system, optical fiber collimator, scan mirror, two colour lens and reflector, the white light emitted from white light source passes through collector lens and lens and narrow seam, then form image on eye through objective and reflector, then make observation to eye through telescope. The measuring arm designed by present invention not only is simple in structure but also ensures the maximum scanning range under same resolution condition or possesses maximum resolution under same scanning range.

An ophthalmologic examination apparatus 1 projects a light onto a fundus oculi, detects the reflected light thereof, and forms a 3-dimensional image that represents the morphology of a retina based on the detected results. A stimulation-position specifying part 233 specifies, in the 3-dimensional image, a plurality of stimulation positions that correspond to a plurality of stimulation points Pi in a visual-field examination. A layer-thickness measuring part 235 analyzes the 3-dimensional image to find the layer thickness of the retina at each stimulation position. In addition, a displacement calculation part 234 specifies a related position of the stimulation position. A layer-thickness measuring part 235 finds the layer thickness of the retina at the related position.

The invention belongs to the technical field of ophthalmic instruments, in particular a new type of head fixation device for ophthalmic examination. Aiming at the problem that the head fixation equipment is not comfortable for patients to use during ophthalmology examination, the following scheme is proposed, including a base, the bottom of the base The four corners of the outer wall are all fixed with brake universal wheels by screws, and the top outer wall of the base is fixed with electric control slide rails by screws, and the top inner wall of the electric control slide rail is slidably connected with a slider, and the top outer wall of the slider passes A hydraulic cylinder is fixed with a screw, and one end of the piston rod of the hydraulic cylinder is fixed with a supporting plate by a bolt, and the outer walls of both sides of the supporting plate are fixed with a fixing plate by screws, and the fixing plate is an L-shaped structure. The outer wall on one side is fixed with a servo motor by screws. The invention can move freely, and can adjust the height of the equipment freely, so that the patient can relax the nervousness during the eye examination, and avoid the occurrence of the phenomenon that the buckle of the strap is too hard and crushes the scalp.

An ophthalmologic examination apparatus has a main unit housing an illuminating optical system that illuminates a fundus of a subject's eye to be examined and an imaging optical system that images the illuminated eye fundus. First and second attachment units are removably and exchangeably mounted to the main unit for providing different ophthalmologic functions. The first attachment unit houses an imaging device that captures an image of the eye fundus via the imaging optical system housed in the main unit. The second attachment unit houses a light source that emits stimulating light for an electroretinogram and which is projected onto the eye fundus via the imaging optical system housed in the main unit.

An opthalmological measuring instrument, e.g. for determining the corneal curvature, anterior chamber depth, axial length, or the like, including measuring systems for determining measurement of the mentioned physical parameters. The measuring systems are connected to an evaluation unit which verifies whether quality parameters regarding the measurements are satisfied and generates a corresponding signal that indicates to the medical professional user that a proper measurement can be taken.

The invention discloses a novel ophthalmologic examination head fixing device which structurally comprises a head fixing frame, a base and an examination apparatus. The examination apparatus is mounted on the base, the head fixing frame is arranged at the front of the examination apparatus, the bottom of the head fixing frame is connected to a side surface of the base, the head fixing frame comprises a support column, a fixing frame, a nut, a lifting rod, a chin fixing seat, left and right fixing frames, perforated holes, a forehead cushion and fixture blocks, a transverse rod of the L-shapedsupport column is arranged at the bottom of the support column, the support column is connected with a side surface of the base, an end of the vertical rod of the support column is connected with themiddle of the bottom of the fixing frame, and the end of the vertical rod and the middle of the bottom of the fixing frame are of integral structures. The novel ophthalmologic examination head fixingdevice has the advantages that each of the left and right fixing frames comprises a fixing sheet, a guy rope and an arc-shaped block, accordingly, the novel ophthalmologic examination head fixing device is simple in structure, convenient to manufacture and low in cost, can be replaced at any time and is easy to operate, and users can easily master the novel ophthalmologic examination head fixing device; the arc-shaped blocks in arc-shaped designs can cling to ear structures of human bodies, accordingly, good fixing effects can be realized, and patients can be prevented from swaying in the left-right directions.

The invention relates to a lighting device, in particular to a lighting device for ophthalmic examination. The technical problem of the present invention is to provide a lighting device for ophthalmic examination that is easy to move and easy to operate. The technical embodiment of the present invention is a lighting device for ophthalmic examination, which includes: moving wheels, there are three moving wheels; an adjusting mechanism, an adjusting mechanism is installed on the top of the moving wheel; lighting mechanism. The beneficial effects of the present invention are: under the action of the lighting mechanism, people can move the first slide bar left and right, and the first slide bar will drive the second block and the lighting lamp to move left and right. Move the pull rod, and the pull rod will drive the card slot to move to the rear side. When the card slot contacts and cooperates with the second block, the first slide bar and the light will be fixed, so that the light is more stable when people perform ophthalmic examinations .

An eye examination apparatus comprises an illuminator adapted to project a light beam on an optical illumination path along a first optical axis to illuminate the retina of an eye, said illuminator comprising a light source and a projection diaphragm adapted to shape the light beam, during the operation of said examination apparatus said projection diaphragm being optically conjugated with the retina. Acquisition means receive light reflected by the retina and acquire images of the retina. Scanning means move the light beam projected on the surface of the retina along a scanning direction. Separation means of the beams separate the light projected by said illuminator from the light reflected by the retina. The projection diaphragm comprises a projection opening having an elongated shape and variable width, said projection opening comprising a portion having a width larger than the width of said projection opening at the first optical axis.

The invention belongs to the technical field, and particularly relates to a bearing device for ophthalmic examination. Through the arrangement of a head bearing mechanism and an instrument bearing mechanism, when a patient receives strabismus examination of the eyes, bearing of the patient and an examination instrument is facilitated, the fatigue feeling of the patient and inconvenience in instrument holding are reduced, and examination convenience is improved; through cooperation of a driving assembly, a rack and multiple detection prism groups, the orientation of the prisms can be changed only by pushing or withdrawing the rack according to detection requirements in a detection process, adjustment and disassembly of too many parts are not needed, more convenience and rapidness are achieved, the number of the detection parts of the whole device is reduced, operation convenience is improved, and an integration degree is high; and by arranging a transverse adjuster and a lifter, the driving assembly can be rapidly adjusted, the eye examination requirements of different patients are met, and adjustment is convenient and rapid.

The present invention relates to measuring arm of eye axamination apparatus using slip lamp inlegrated optical correlation cromatography, it includes slip lamp system, optical fiber collimator, scan mirror, two colour lens and reflector, the white light emitted from white light source passes through collector lens and lens and narrow seam, then form image on eye through objective and reflector, then make observation to eye through telescope. The measuring arm designed by present invention not only is simple in structure but also ensures the maximum scanning range under same resolution condition or possesses maximum resolution under same scanning range.

The invention belongs to the technical field of ophthalmology examination, and particularly relates to an eye observation lamp for the ophthalmology department. The eye observation lamp comprises a base, a fixed supporting column is arranged at the top end of the base, through holes are formed in the front end and the rear end of the fixed supporting column, a penetrating rod is arranged in the through holes, a rotating supporting part is arranged on the outer side of the penetrating rod, angle fixing parts are arranged at the front end and the rear end of the fixed supporting column, an observation lamp is connected to the top end of the right side of the rotating supporting part, and a cleaning part is arranged at the top end of the observation lamp. The observation lamp is simple in structure and can be conveniently adjusted according to the conditions of a patient. A telescopic movable plate is adopted, a rotating plate is shifted to rotate, the angle of the observation lamp is adjusted, after angle adjustment is completed, the telescopic movable plate is controlled to move towards the right side, a pressing suction cup is pressed and adsorbed to the top end of the rotating plate, the position of the telescopic movable plate can be fixed, the position of the observation lamp can be adjusted conveniently, and the situation that an observation lamp needs to be held by hand for inspection in the inspection process is avoided.

The invention provides ophthalmic examination glasses based on electrochromic materials, belongs to the field of glasses, solves the problems that an existing shielding cover is inconvenient to use and the like, and comprises a glasses frame, a first electrochromic device and a second electrochromic device, the first electrochromic device is provided with a first control device, and the second electrochromic device is provided with a second control device. The second electrochromic device is provided with a second control device, a first button is arranged on one side of the glasses frame, a second button is arranged on the other side of the glasses frame, and the first button is used for being pressed by people to enable the first control device to control the first electrochromic device to be in a shielding state or release shielding; the second button is used for being pressed by people, so that the second control device controls the second electrochromic device to be in a shielding state or unshielding; the first control device and the second control device are each provided with an adjuster, and the two adjusters are electrically connected with the first electrochromic device and the second electrochromic device correspondingly. The visual acuity examination device is convenient for visual acuity examination.