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Figure 3: (a) Fundus photography of third case. (b) Case 3 right eye. B-scan swept-source optical coherence tomography shows a “Y-shaped” image formed by the intercalary membrane reaching the bottom of the coloboma. There is a vitreoretinal attachment in the nasal aspect and a small cystic cavity affecting the external retina in the temporal sector. The transition between the normal retina and the OCM shows a progressive disappearance of the outer retinal layers (arrow) when it reaches the colobomatous cavity. This case shows a higher reflectivity in the nasal side, making its continuation with the retinal nerve fiber layer more likely. (c) Case 3 right eye. B-scan swept-source optical coherence tomography at the retinal transition in greater detail in the temporal sector |
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