Projects
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Functional Assessment - Guidelines and Reports
Combining his interests in classification and in vision rehabilitation, Dr. Colenbrander has promoted a better understanding of the various aspects of vision loss, their causes, and above all their consequences for the person.
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Functional Assessment - Reading
Difficulty reading is the most common complaint of low vision patients. It is the Activity of Daily Living that is most closely related to visual acuity, but involves many additional factors beyond.
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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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Harnessing the Power of Drawing for the Enhancement of Learning across Levels of Vision Function
Recent scientific findings about art and drawing suggest that drawing can facilitate learning in a wide variety of domains. The proposed collaboration will develop an interdisciplinary research program aimed at harnessing the power of drawing to enhance learning across fields of intellectual endeavor.
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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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Higher Visual Function (HVF) in individuals with cerebral visual impairment (CVI)
Cerebral visual impairment often affects higher level visual function (HVF); for example, spatial attention, motion perception, divided attention, etc.
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Human Echolocation
What is echolocation? Sometimes, the surrounding world is too dark and silent for typical vision and hearing. This is true in deep caves, for example, or in murky water where little light penetrates.
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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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