Flashcards in 1. Intro to binocular vision Deck (9)
why binocular vision
1. larger binocular visual field
2. binocular summation
-2 eyes looking at the same thing see if better than 1
3. spare eye
4. stereopsis (MAIN REASON)
what is physical space
the measurable 3D space around us, and everything in it
what is visual space
your perception of physical space
how many visual spaces do all patients have?
what does diplopia mean in this sense?
-all patients have only 1 visual space
-diplopia means seeing 2 identical images in one's single visual space
what are the 3 components of stereoscopic visual space
1. perceiving the directions of images
2. making one image from two
3. building stereopsis
what helps with seeing "where" things are?
what helps with "what" things are?
binocularity help w/ wehre => space perception
stereopsis helps w/ what => secondary
what are some examples of when visual space doens't equal physical space
1. optical illusions-normal
2. entoptic phenomena-normal
3. abnormal vision
what are 3 common types of poor binocularity
2. nonstrabismic vergence anomalies