Projects
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Functional Assessment - Visual Acuity
Visual acuity is a mainstay for the assessment of “How the EYE functions”. Traditional, non-logarithmic, visual acuity charts, however, are inaccurate for visual acuities worse than 20/100.
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Functional Assessment - Visual Fields
Most patients are unaware of their visual field defects and scotomata, be it from AMD, from glaucoma, from RP, or from other causes.
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Go and Nogo Decision Making
The decision to make or withhold a saccade has been studied extensively using a go-nogo paradigm, but little is known about the decision process underlying pursuit of moving objects. Prevailing models describe pursuit as a feedback system that responds reactively to a moving stimulus.
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Hearing Aid for Blind Travelers with Hearing Loss
Blind travelers rely on subtle acoustic cues for independent mobility. When hearing becomes impaired, as in the normal aging process, a special type of hearing aid may be needed to enhance these cues.
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Human Echolocation
Sonar for people
Similarly to many bats and marine mammals, some blind humans echolocate. Using acoustic reflections from tongue clicks or other pulses, such as cane taps or footfalls, practitioners have demonstrated remarkable precision in navigation and object perception.
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Integration and Segregation
Traditionally, smooth pursuit research has explored how eye movements are generated to follow small, isolated targets that fit within the fovea. Objects in a natural scene, however, are often larger and extend to peripheral retina.
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Is Macular Degeneration just Macular?
Diminished motion perception was used as indicator of early effects of eye diseases in the periphery of the visual field.
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Low Vision Computer Access
Dr. Deborah Gilden wants to ensure that people who work with low vision students, clients, or patients, or have a visually impaired friend or family member, know that many features built into the Windows OS, MS Office applications, and the Internet, often can serve as tools for low vision computer access.
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Low Vision Support Group
Join Dr. Don Fletcher, one of the world’s leading authorities on Low Vision Rehabilitation, to share experiences and learn about the things that help you maintain a full and happy life while living with low vision. This support group is completely free.
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Micro-Perimetry by Scanning Laser Ophthalmoscope (completed)
We developed software to make the retinal placement of stimuli during micro-perimetry by a scanning laser ophthalmoscope (SLO) independent of involuntary fixational eye movements.
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