Search Results - geunyoung+yoon

7 Results Sort By:
Extended Depth of Focus Contact Lens Design
Presbyopia is an ophthalmic condition where the eye loses the ability to focus clearly due to lens aging. It can significantly affect the quality of life. Since eventually every person is undergoing this condition, it’s important to find a solution to it. Spectacle-free treatment can be achieved by contact lenses and intraocular lenses. A lens...
Published: 3/29/2021   |   Inventor(s): Geunyoung Yoon, Jiakai Lyu
Category(s): Optics
Contact Lenses to Control Myopia Progression
The population of myopia patients has been booming worldwide. Although myopia can be easily corrected with optical and surgical interventions, pathological myopia is known to increase the risk of eye diseases such as cataracts, glaucoma and macular degeneration which cause large social economic burden worldwide. The genesis of myopia remains uncertain,...
Published: 3/29/2021   |   Inventor(s): Geunyoung Yoon
Category(s): Optics
Compact, Portable (Hand-Held) Wavefront Sensor
Applications: The present invention is a compact, portable (hand-held) wavefront sensor. It is composed of a double path dichrotic filter, a beam splitter, and a dual, unequal wavelength illumination arranged in a system able to measure ocular wave aberrations. Applications include: - Vision screening of infants and children. - Measurement of...
Published: 8/14/2020   |   Inventor(s): Geunyoung Yoon
Keywords(s): Diagnostic, Ophthalmology, Software, Vision
Category(s): Diagnostic
Algorithm to Increase Dynamic Range of Wavefront Sensor to Correct Eye Defects
Applications: Wavefront sensors are used to diagnoses and correct the optical defects in the eye. This technology increases dynamic range of a conventional wavefront sensor without sacrificing measurement sensitivity for the eye and optical testing.Advantages: The increased dynamic range of wavefront sensor enhances diagnosis and correction of optical...
Published: 4/17/2019   |   Inventor(s): Geunyoung Yoon, Gang Pan
Keywords(s): Algorithm, Ophthalmology, Software
Category(s): Diagnostic, Copyright
Measuring the Ocular Point Spread Function Using Adaptive Optics
Brief Description: A system to overcome limitations in lateral resolution found in popular wavefront sensors. Applications: This invention identifies the current Shack-Hartmann type ocular wavefront sensors and proposes a design to combat the model’s limited lateral resolution. The proposed invention is to measure the point spread function of...
Published: 2/28/2011   |   Inventor(s): Geunyoung Yoon
Category(s): Devices, Diagnostic
Scanning Optical System for a Large Axial Scan Depth Anterior Segment Optical Coherence Tomography (OCT)
Brief Description: A system to improve vision care accommodation and intraocular lens development. Applications: This invention identifies the two limitations associated with the traditional telecentric scan that most of the commercial anterior segment optical coherence tomography (OCT) systems use and proposes a novel design to tackle these issues. Advantages: Most...
Published: 2/28/2011   |   Inventor(s): Geunyoung Yoon
Category(s): Devices, Diagnostic
Rapid, Automatic Measurement of the Eye's Wave Aberration
A process for computing the aberrations of the eye in real time from wavefront measurements using a wavefront sensor such as a Hartmann-Shack detector.ApplicationsReal-time determination of the aberrations of the living human eye is necessary for high resolution imaging of the retina for diagnostic evaluation. This is necessary because the eye is...
Published: 6/17/2009   |   Inventor(s): David Williams, Geunyoung Yoon, Heidi Hofer, Pablo Artal, Juan Aragon, Pedro Prieto, Fernando Vargas, William Vaughn Iii, Benjamin Singer
Category(s): Diagnostic, Optics