A Exotropia Syndrome

A Exotropia Syndrome 2

Ocular: Exotropia greater looking down by 15 prism diopters than looking up; mongoloid (upward) slant of lid fissures; alternating sursumduction and associated vertical divergence; overaction of superior oblique muscles or underaction of inferior oblique or inferior rectus muscles; fusion obtained by chin depression.

Hardesty HH. Superior oblique tenotomy. Arch Ophthalmol 1972; 88:181-184.

Hwang J, Wright KW. Strabismus syndromes. In: Wright KW, ed. Pediatric ophthalmology & strabismus. St. Louis: Mosby, 1995:223.

Roy FH. Practical management of eye problems: glaucoma, strabismus, visual fields. Philadelphia: Lea & Febiger, 1975:144--145.