High-resolution optical coherence tomography demonstration of membranes spanning optic disc pits and colobomas

Abstract

In this small series of patients with optic disc pits or colobomas, it was possible to identify a membrane spanning the optic disc cup, and it is speculated that this may protect against the development of maculopathy. Schisis-like separation of retinal layers can be associated with normal visual function.

Autofluorescence and optical coherence tomography findings in optic disc pit-associated maculopathy: case series

“…We also observed these two components clearly in all our cases; a similar finding to a study by Karacorlu et al [10]. Doyle et al [11] also used high-resolution OCT to demonstrate the same features of ODP as we found. They observed a neuroectodermal or astroglial tissue-originated membrane traversing the OD cup in some cases with ODP but without maculopathy and thought this membrane may be a barrier to the passage of fluid into or under the retina [11].…”

“…The elements of these two components are serous macular detachment and retinoschisis, which are typical for this disease [10,11]. We also observed these two components clearly in all our cases; a similar finding to a study by Karacorlu et al [10].…”

Evaluation of Congenital Optic Disc Pits and Optic Disc Colobomas by Swept-Source Optical Coherence Tomography

“…[21][22][23][24] However, the resolution and penetration of conventional OCT into the deeper tissue were not sufficient, thus, detailed information on the structures deep in the pit, especially the spatial relationship between the pit and the SAS, was not determined. Similarly, in the studies that evaluated eyes with optic disc coloboma by OCT, 24 only the superficial areas of the papillary region were visible for study.…”

Layer Cake–silicone Oil Under the Internal Limiting Membrane in an Optic Pit Eye

“…Moreover, comprehensive spectral-domain optical coherence tomography analyses of different retinal spaces, including sub-ILM spaces, forming in pit of the disk pathology, has been conducted by Imamura et al 1 Recurrent traction of ILM, tractive membranes, or vitreous remnants may form such ILM domes or ridges spanning a hole for oil dislocation. 5 In this case, there were arguments for the following possible mechanism of sub-ILM oil dislocation: Imamura et al 1 have recently reported dislocation of fluid from the optic pit itself into various retinal layers; Doyle et al 6 have described membranes spanning the optic disk pits and colobomas, which seemed to be protective against macular edema in cases of optic pit. Arguably, such membranes could have been removed during surgical treatment of proliferative vitreoretinopathy membranes.…”