Optical coherence tomographic finding in a case of macular coloboma

Abstract

Purpose: To report the optical coherence tomography (OCT) findings in a patient with unilateral macular coloboma.

Methods: A 12-year-old male was presented with macular coloboma in the left eye. The optical coherence tomography was performed with fluorescein angiography (FA).

Results: The OCT revealed the crater-like depression in the macula, demonstrating atrophic neurosensory retina, and an absence of retinal pigment epithelium and choroid in the lesion. FA showed hypofluorescence corresponding to the size of the lesion in both early and late frames without leakage of dye at any stage.

Conclusions: The OCT can be beneficial to confirm the diagnosis of macular coloboma.

Fig. 1

Color fundus photography shows a sharply-demarcated, oval-shaped, excavated lesion involving the temporal half of the macula (A). Red-free retinal nerve fiber layer photography shows intact papillomacular bundle around the lesion (B). Large choroidal vessels and bared sclera are observed at the base. Fluorescence angiography shows hypofluorescence corresponding to the size of the lesion in both early (C) and late frames (D) without leakage of dye.

Fig. 2

Optical coherence tomography shows that the neurosensory retina is abnormally atrophied, and retinal pigment epithelium and choroid are absent in the lesion (A). A thin membranous structure of atrophied neurosensory retina is outlining the bare sclera and large choroidal vessels (B).