Orbital migration of gas in a case of colobomatous microphthalmos.

Purpose: The purpose of the study was to report a unique case that suggests a communication between a colobomatous eye and the orbit.

Methods: Case report.

Patients: Eleven-year-old girl.

Results: Gas moved from the vitreous cavity into the orbit during vitrectomy in a colobomatous microphthalmic eye.

Conclusion: As this case suggests, there may be an occult connection through the coloboma and the surrounding extraocular tissue, possibly providing an additional etiology of subretinal fluid that can be associated with these congenital optic nerve disorders.