What Is Stereopsis?

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Question:
What is stereopsis?

Answer:
Roughly, you can think of stereopsis as depth perception. When a visually normal human being looks at an object, each eye sees it from a slightly different angle, and sends those "pictures" back to the brain. The differences between the two images are integrated into a single one, and the differences are used to show what is nearer, etc., creating the "3 D" effect.

Answered by: Richard G. Shugarman, MD

Categories: General Eye Health

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