Esophoria
Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria.

Cause
Causes include:

Refractive errors
Divergence insufficiency
Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.Unlike esotropia, fusion is possible and therefore diplopia is uncommon.

References


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