First Author: J.Ruiz-Medrano SPAIN
Co Author(s): I. Flores-Moreno J.A. Montero-Moreno J.M. Ruiz-Moreno 0 0 0 0 0 0 0 0 0
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To study the structural abnormalities of optic disc colobomas by swept-source optical coherence tomography (SS-OCT).
Ophthalmology department Castilla La Mancha University/Clinica Baviera Alicante/Hospital Universitario Clínico San Carlos Madrid/Pío del Río Hortega Hospital Valladolid.
Five eyes from three patients with congenital optic disc colobomas were studied. Papillary and inferior-peripapillary retinal areas were studied with Swept-Source OCT (Topcon Corporation, Tokyo, Japan). The entire course of the colobomas, cavities and the spatial relationship between retina, cavities and retrobulbar subarachnoid space (SAS) were examined.
SS-OCT images showed the entire area of the optic disc in all five eyes with disc coloboma. The retina was not able to cover the surface of the cavity in all cases forming a “bridge image” over the colobomatous cavity, with an image of retinal cavitation similar to choroidal cavitations and Y-shaped in four cases. In the other case the cavitation was only found in one side of the coloboma. The retina over the coloboma is thinner that usual, not being able to identify any of its layers. In one case we found communication between this cavity and the SAS.
Swept-source OCT is able to detect the shape and morphology of the cavities, the thinning of the retina over the coloboma and the relation between this cavities and the SAS in the excavated optic discs abnormalities.