Vision
Different levels of vision correlate to the different types of eyes found in various species. The simplest eye receptor is that of planarians, a flatworm that abounds in ponds and streams. Plan...
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Sight
Sight—one of a human being's five senses—begins when rays of light hit an object and reflect back into the eye through the cornea--the clear membrane covering the eyeball, through th...
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Vision, Chemistry Of
Vision is the ability to be able to see. In mammals the organ that is responsible for vision is the eye. Light enters the eye and it is then focused on the retina by the lens. The...
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Eyes and Eyesight
Human eyes work much like a camera. They allow images of a person's surroundings to be perceived by the brain and permit him or her to perceive different shapes, sizes, and colors. T...
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Beery-Buktenica Test
Identifies problems with visual perception, fine motor skills (especially hand control), and hand-eye coordination.
The Beery-Buktenica Test, also known as VMI or Developmental Te...
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Eye and Vision Development
The infant eye is only partially developed at birth. Newborns are generally very far-sighted—they can see light and shapes and notice movement, but the eyes focus onl...
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American society emphasizes on the idea of having perfect eyesight. At the same time, it insinuates that perfection is an important aspect for life. The specific purpose of eyeglasses is for the vis...
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