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Encyclopedia :
H :
HE :
HEM :
Hemeralopia |
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HemeralopiaHemeralopia is the exact opposite of Nyctalopia (Night Blindness). In hemeralopia, daytime vision gets worse and worse. Nighttime vision remains unchanged due to the use of rods as opposed to cones (during the day), which get affected by hemeralopia and in turn degrade the daytime optical response.
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This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License. |
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| © 2008 Chamas Enterprises Inc. |
