How to tell if you have phoria

1, monocular cover

usually needs to cover one eye, if the opposite eye does not move, put the cover in front of both eyes or quickly move to the opposite eye, found that one eye movement can be diagnosed.

2, cover-cover

cover-cover way is to use a cover for a long time to cover one eye, break the fusion function of the eyes, remove the cover, found that the eye position of the covered eye changes can be diagnosed.

3, prism alternate cover The

examinee can also put the prism in front of the eye, if the eye movement phenomenon appears when covering, can be diagnosed. At the same time, increase the prism degree to make the eye movement phenomenon disappear, can determine the degree of phoria.