Rapid Fire Saturday 19 May 08:00 - 09:32 Salle des Princes
V. Piccirillo, V. Rao, A. Di Nuzzo, S. Savastano, R. Forte, R. Rosen,
ITALY
May OCT/SLO improve our understanding in pathophysiology of optic disc coloboma-related maculopathy?
Purpose: To describe OCT/SLO findings in a case of unilateral optic disc coloboma (ODC) complicated by serous macular detachment (SMD) and partial thickness macular hole (PTMH). Setting: Observational case report. Methods: A young white woman (34 y.o.) presented at our Eye Primary Care Unit with a 1 month history of decreased vision and metamorphopsias in her left eye (LE). Family history was negative for any ophthalmic disorder. Complete ophthalmic examination, with colour fundus photos and OCT/SLO were performed. Results: BCVA: 20/20 in RE, 20/200 in the LE, anterior segment findings: unremarkable in both eyes. Fundus examination of the LE revealed an ODC; in the macular area, a SMD with an full thickness macular hole like lesion were observed. The OCT/SLO evaluation showed a large schisis-like SMD and PTMH; the optically empty space appeared to be continuous with ODC. The C scan of optic disc revealed an eccentric, optically empty depression covered by an unbroken layer of neurosensory retinal like tissue; on the bottom, a small, oval shaped, cystic space, contiguous to the coloboma’s wall, was observed suggesting the subretinal-subaracnoidal interspaces communication. Conclusions: Macular schisis and SMD are the leading cause of visual loss and metamorphopsias in case of complicated ODC. Although the origin of sub retinal fluid remains unclear, OCT/SLO technique demonstrates the continuity between sub retinal fluid and coloboma suggesting the possible sub aracnoidal source of the maculopathy.
