Poster 107

by in  Poster Session 2

Orbital Cysts after Strabismus Surgery: A Worldwide Survey

Vincent N. Vu, MD; Shira L. Robbins, MD; David B. Granet, MD; Megha Pansara, MD; J. Rotsen Evaristo, MD; Erica M. Ellis, MD; Erika Acera, OC(C)
UCSD/Naval MC – Pediatric Ophthalmology
San Diego, CA


Introduction: Orbital cysts following strabismus surgery represent a rare post-operative compliation. The characteristics of patients, risk factors, and the recommended management will be analyzed by an international survey.

Methods: Strabismologists from around the world contributed cases of orbital cysts through an online survey. Incidence, risk factors, management, and outcomes were identified.

Results: Ninety-three cases of orbital cysts from 50 surgeons in 10 countries were collected to date. Average years of practice of participating surgeons is 21.1 years.  Average case number per participant is 2.4 cases.  The most common age of patients at time of presentation is 31-40 years (4/121 [3%]).  The most common time of cyst presentation was within the first 10 years after surgery (15/121 [12%]).  Most common presentation of cyst was a visible mass (18/121 [15%]).

Discussion: Orbital cysts most often present as a visible mass, diplopia, or can be asymptomatic and detected as an incidental finding. Only 21 cases of orbital inclusion cysts after strabismus surgery have been previously published and little is known about this surgical complication.  We aim to detect specific risk factors for developing orbital cysts after strabismus surgery and report the different strategies for managing this complication.

Conclusion: Our data which encompasses greater than 4x the total previous cases reported in the literature suggests that strabismus surgeons might encounter one case of orbital cyst approximately every 10 years. There are multitude of surgical approaches with excision being the most common.

References: 1. Kushner BJ: Subconjunctival cysts as a complication of strabismus surgery. Arch Ophthalmol 1992, 110(9):1243-1245.

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