BME Seminar Series: Dr. Geunyoung Yoon
Advanced Physiological Optics for Vision Correction and Corneal Diseases
Associate Professor, Department of Ophthalmology, Institute of Optics, Biomedical Engineering, Center for Visual Science, University of Rochester
Abstract:
Ocular wavefront sensing technique revolutionized ophthalmic/visual optics particularly with regard to laser refractive surgery, cataract surgery and ophthalmic lens designs. The technique does not only allow us to accurately measure many higher order aberrations in the eye but also make it possible to correct the aberration to improve vision by using advanced vision correction technology including adaptive optics, customized ophthalmic lenses and surgical procedures. Despite vision improvement with the correction, our previous work found evidence indicating that long-term visual deprivation caused by the eyeâs aberration gradually alters human visual processing. Understanding the limits of human vision by studying the relative contribution of optical and neural factors to neural processing of images formed on the retina can also improve our ability to overcome presbyopia, age-related loss of accommodation and to control myopia progression. I will also introduce to other translational research endeavors for objective diagnosis and treatment of corneal diseases. They include in-vivo corneal and anterior segment imaging (OCT and MRI), multimodal human tear imaging for dry eye research, UVA corneal collagen crosslinking and corneal biomechanics (photoelasticity, FEM).