The Biology of Vision

Essay specific features

 

Issue:

Science

 

Written by:

Lemuel N

 

Date added:

November 7, 2015

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 598

 

Was viewed:

547 times

 

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Essay content:

Depending on the amount of light coming into the pupil, the colorful muscle surrounding the pupil called the iris expands or contracts the pupil. If the person sees her friend in the hallway at school, her pupils will be less dilated than if she sees him at a dance with very low lighting. A curved lens behind the pupil focuses the light onto the retina, the eye's light-sensitive back surface...
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If the person sees her friend in the hallway at school, her pupils will be less dilated than if she sees him at a dance with very low lighting. A curved lens behind the pupil focuses the light onto the retina, the eye's light-sensitive back surface. The image focused onto the retina is imperfect: it is upside-down and blood vessels block some of the light from hitting the retina...
displayed 300 characters

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