8/13/2019 Visualdirection1.1 (TNR)

http://slidepdf.com/reader/full/visualdirection11-tnr 1/2

8/13/2019 Visualdirection1.1 (TNR)

http://slidepdf.com/reader/full/visualdirection11-tnr 2/2

concept of a cyclopean eye  was created , which represents a single hypothetical eye located

approximately midway between the two eyes. Having its own visual directions. It has a primary

visual line and other visual lines, each of which have different visual directions. The direction of

the primary visual line in the cyclopean eye is the mean of the directions of the primary visual

line directions received from the two eyes. Strabismus  also known as tropia or squint where in the two eye are properly aligned

with each other. This condition usually involves a lack of coordination between the extraocular

muscles of the, which prevents bringing the gaze of each eye to the

same point in space and thus hampers proper binocular vision.  Eccentric Fixation  is an adaptation to strabismus along

with amblyopia in which an non foveal or offfoveal area in the

retina of the eye is use for fixation. In esotropia usually used a

fixation point in the retina and exotropia,the retinal point in

fixation is usually located in the temporal side of the retina.