Esophoria Explained

Esophoria
Field:	Ophthalmology

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.^[1]

Unlike esotropia, fusion is possible and therefore diplopia is uncommon.

Normal accommodative convergence excess--long-term follow-up of conservative therapy with bifocal eyeglasses . . 212 . 4 . 218–225 . 1998 . 9644668 . 10.1055/s-2008-1034868 . Eckstein . AK . Fischer . M . Esser . J.