Abstract

SA.19.04

Vitrectomy in optic disc pit

Stepanyan A., Wachtlin J., Krause L., Bechrakis N. E., Foerster M. H.
Charité, Campus Benjamin Franklin, Department of Ophthalmology,  Berlin

Objective: The optic disc pit is a congenital anomaly of the optic nerve. It is a defect in peripapillary tissue that interconnects with the vitreous cavity, subarachnoid and subretinal space. Optic disc pit appears classically oval or round and temporally located. Optic disc pit is in about 50% of cases associated with complications. These are macula edema, macular hole, central retinal detachment and macular pucker.
Methods: We examined 23 patients with optic disk pit, 11 patients (11 eyes) underwent vitreous surgery between 1996 and 2006 because of manifest complications.
Results: In 5 of 11 eyes we performed the vitrectomy because of a central retinal detachment. 3 eyes got vitreous surgery because of a macular hole, 1 eye because of a macular pucker and 2 eyes because of rhegmatogenous retinal detachment. 6 eyes (55%) developed a retinal redetachment and/or macular hole. These eyes had repeat vitrectomies; the interval between vitrectomies was 6,75 months on average. Through vitreous surgery visual acuity was stabilised (±1 line) in 6 of 11 cases and improved (³3 lines) in 3 of 11 cases. In 2 of 11 cases we observed a decrease of visual acuity postoperatively (>3 lines).
Conclusions: Half the examined patients underwent vitreous surgery. 55% of these patients developed postoperative complications or a relapse respectively. However, in most cases the visual acuity could be remain stabilised. Therefore vitreous surgery in optic disc pit with associated complications seems to be a useful alternative compared to the spontaneous course.

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