An infrared camera detects eye movements through an LCD panel blocking one eye, enabling continuous monitoring for neurological disorders.
A down-conversion system shifts high fringe frequencies to lower ranges using a distribution element and frequency down-shifter.
A perimeter system designates specific inspection regions to control stimulus presentation timing.
Moving the reference mirror adjusts optical path length, enabling high precision tomographic images of deep layer tissues without increasing device complexity.
A display control unit shows an index at the detected gaze point position to provide immediate visual feedback.
Replacing complex optical benches, this tool uses a lenslet array and digital pre-warping to assess refractive errors accurately in resource-limited settings.
A tunable laser OCT system splits the object beam into distinct paths for anterior chamber and retinal imaging using a single integrated device.
Confocal interferometric arrangement determines corneal topography with ±5μm accuracy, resolving eye movement artifacts during rapid scanning.
Image processing extracts choroidal vessels from OCT volume data to generate three-dimensional images.
Tracking extremum movements across varying pupil diameters eliminates ambiguity in merit function optimization, ensuring stable vision correction.
Digital surfacing forms aspherical back surfaces on eyeglass lenses, reducing peripheral thickness and eliminating the coke bottle effect.
Optical interferometry quantifies tear film layers to resolve dry eye diagnosis precision issues caused by subjective visual assessment.
A segmented test chart with varying Weber contrast levels enables threshold sensitivity assessment.
A matrix optical sensor embedded in a display panel detects reflected light energy to track pupil movement accurately.
A pediatric vision screener uses polarized light scanning to capture retro-reflected eye signals and calculate a binocularity score.
A binocular adaptive optics visual simulator uses adjustable scan mirrors to direct beacon light and track eye movements.
A personal device calculates refractive error by measuring the maximum distance of best acuity using a display and sensor.
Alternating polarization regions separate optotypes while white gap compensation neutralizes light leakage for accurate refractive power assessment.
A light source control unit dynamically adjusts blinking patterns of multiple eye irradiating lights to enhance line-of-sight estimation accuracy.
Assessment application establishes a baseline profile of visual parameters to monitor user vision changes.
A reading test with inserted defects uses an optical indicator to determine suitable visual aids for individuals.
An ophthalmologic imaging apparatus deforms three-dimensional optical coherence tomography data into predetermined shapes to generate specific cross-sectional views.
A camera with human eye optics captures images through ophthalmic lenses for direct display.
A target presenting apparatus uses a concave mirror to displace light flux from an optical axis for examinee presentation.
A method calculates progressive lens zone dimensions using virtual reality gaze maps to tailor optical areas to individual user eye movement patterns.
Analyzing the composite glint area shape from corneal reflection astigmatism resolves shallow depth of field issues in telephoto iris recognition systems.
An ophthalmic inspection device combines target and background light beams using an unpolarizing beam splitter to project uniform illumination onto the eye.
Low-intensity lambertian illumination minimizes tear evaporation and reflex tearing while enabling accurate lipid layer thickness assessment.
Correction unit compensates for non-linear angle relationships in concave mirror systems to maintain measurement precision across wider scan ranges.
Sub-pixel rendering measures motion displacement thresholds below pixel height, while cluster analysis reduces retests to shorten test duration.
Redistributes lateral aberrations to outer lens areas during design, reducing optical distortion within the useful viewing zone for improved comfort.
Pre-set fixation positions and automated image propriety checks reduce examination time and eye fatigue.
A frequency-swept light source imaging apparatus segments data acquisition using multiple analog-to-digital converters for parallel processing.
A calculation method modifies base target isoastigmatism lines and interpolates values to create flexible spectacle lens designs.
Optical coherence tomography measures eye axial length using registered corneal topography data for calculation.
Segmenting electronics into the peripheral zone reduces manufacturing complexity while periodic sensing cycles conserve battery power.
An array of visual markers defines a polyhedron volume that correlates to the field of vision, eliminating expensive retinal examination equipment.
Low coherence light splits into signal and reference beams to generate interference, calculating intraocular distance without ultrasonic strain or disinfection.
Narrow band laser emission above 480 nanometers combines with longer wavelength sources to form a white illumination beam for surgical procedures.
Computational application processes smartphone images to analyze pupillary reflex color percentages for preliminary ocular diagnosis.
Simultaneous multi-directional imaging analyzes three-dimensional eye position to align the optical axis and working distance without manual adjustment.
Segmented intensity thresholding and feedback validation filter invalid spots to improve wavefront measurement precision.
Motor-driven refractive lens adjusts position to maintain eye alignment, reducing stimulus blur and retinal sensitivity errors.
A plenoptic detector captures reflected light field data to determine corneal thickness.
Replacing mechanical bearings with fluidic bearings eliminates underwater friction, enabling smooth ultrasonic corneal imaging without alignment drift.
Simulate imaging by multiple eye optical systems to calculate clinical visual performance metrics for ophthalmic corrections.
A holographic element generates virtual fixation targets, eliminating imaging aberrations and residual convergence found in traditional refractive systems.
Segmenting the optical and electronic zones reduces manufacturing complexity while enabling gaze tracking and variable focus.