Spectral domain optical coherence tomography demonstrates interconnected orbital cyst and chorioretinal coloboma in an adult.
OBJECTIVE
To report an orbital cyst underlying a chorioretinal coloboma in an otherwise normal eye, detected by spectral domain optical coherence tomography imaging. To the authors' knowledge, this is the first case of a chorioretinal colobomatous cyst in the normal eye to be reported.


METHODS
A descriptive case report of a patient with a chorioretinal coloboma with an underlying orbital cyst.


RESULTS
A 59-year-old woman presented with a floater affecting her left visual field. Fundoscopy revealed a pale lesion inferotemporal to fixation at the left macula. Spectral domain optical coherence tomography revealed a retinochoroidal coloboma with an associated scleral hole. Enhanced depth imaging spectral domain optical coherence tomography revealed an underlying orbital colobomatous cyst.


CONCLUSIONS
To the authors' knowledge, this is the first case of a healthy adult with a retinochoroidal colobomatous cyst without microphthalmos. The authors encourage optical coherence tomography of any suspected colobomas to exclude similar pathology.
*Department of Ophthalmology, Hillingdon Hospital, Uxbridge, United Kingdom; and †Department of Ophthalmology, St. Thomas' Hospital, London, United Kingdom.
Edward J
EJ
Casswell
Manoharan
M
Shunmugam
David J
DJ
Spalton
Tom H
TH
Williamson