Kirby M. Zimmerman

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PURPOSE The purpose of this study was to evaluate the effect of aging on motion detection and perception. METHODS Forty-six subjects, ages 19-92 years, were asked to view a motion stimulus. Infrared oculography was used to objectively evaluate motion detection by documenting the presence of optokinetic nystagmus as the subjects viewed the stimulus.(More)
Coral reefs are one of the most threatened marine ecosystems and are under significant sources of stress in many locations (e.g., Knowlton 2001; Hoegh-Guldberg et al. 2007). These stresses include degradation of water quality from coastal dredging, construction, and runoff; over-harvesting of corals and associated organisms; and mechanical damage from(More)
To better understand the damage to the motion pathway that occurs in senile dementia of the Alzheimer type (SDAT), we developed a system to assess separately the conscious perception and unconscious detection of motion in patients with SDAT. Motion perception thresholds were significantly elevated in SDAT (n = 9) compared with controls (n = 12), but motion(More)
PURPOSE Although previous studies have examined the risk of bilaterality of nonarteritic ischemic optic neuropathy (NAION), none have compared extensively the extent of visual loss between fellow eyes. The authors examined cases of bilateral NAION to determine the extent of vision loss in the second eye compared with that in the first eye. METHODS(More)
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