Refractometers TRIZ Cases
- Virtual Reality Eye Tracking for Objective Convergence Measurement
This case replaces subjective rod testing with animated VR stimuli and eye tracking to calculate objective eye-convergence values.
- Intraocular Lens Testing With Movable Optics for Visual Impressions
A lens carrier and movable optical path help assess subjective vision across near, intermediate, and far viewing conditions.
- Sensor-Based Optical Lens Monitoring for Refractive Error Changes
Integrated optical equipment monitors eye and brain signals, enabling timely lens adjustment without frequent clinical visits.
- Ophthalmic Wavefront Measurement for IOL-Specific Dioptric Power
The ophthalmic device adjusts its focusing lens and calculation method to each IOL type for more reliable dioptric power results.
- Ophthalmic Acquisition Optics With Positional Relationship Imaging
A controller displays the eye-to-optics relationship, helping operators confirm test conditions despite headrest obstruction.
- Subjective Optometry Device with Correction-Value Accuracy Alerts
Self-optometry uses prior eyeglass and measurement data to compare correction values, alerting when exam accuracy may be unreliable.
- Automated Non-Contact Eye Examination with Tracking-Based Alignment
This case combines movable optics and eye tracking for objective or subjective refraction without close contact or human alignment.
- Optical Refraction Switching to Minimize Blur in Vision Comparison
The optical system switches refractive power without interrupting the light beam, reducing blur and improving correction comparison.
- Eccentric Photorefraction Image Simulation for Eye Refraction Estimation
Compare acquired and simulated eccentric photorefraction images to estimate eye refraction with a fast, accessible optimization workflow.
- Multi-Angle Ophthalmic Imaging for Patient-Specific Refractive Indices
Images captured from multiple eye angles are matched to simulated 3D models to determine refractive indices for accurate reconstruction.
- Holographic Real-Space Refraction Testing Across Nine Gaze Positions
A head-mounted holographic display presents virtual targets across nine gaze positions, measuring refraction while preserving peripheral vision.
- IOL-Specific Dioptric Power Calculation from Wavefront Aberrations
IOL-type classification selects tailored wavefront calculation methods for more consistent dioptric power results.
- IOL-Specific Wavefront Measurement for Reliable Dioptric Power
The apparatus shifts its focusing lens and selects IOL-specific Zernike processing for more reliable dioptric power measurement.
- Selective Wavefront Sensing for Diffractive-Refractive IOL Refraction
A wavefront sensor excludes distorted diffractive-region spots to improve refractive power measurement through an implanted IOL.
- Optotype-Based Dioptric Power Testing for Astigmatism Without Overcorrection
Directional optotypes improve lens power, astigmatic power, and axis testing without overcorrection.
- Refractive Measurement Optics With Color-Coded Visual Field Targets
Wavelength-specific openings and complementary-color targets improve image identification and refractive inspection accuracy.