This patient had an optic disc coloboma. The OCT showed a deep excavation of the central optic disc as well as excavation of the retina and choroid temporal to the disc. There is typical enlargement of the disc as well as peripapillary pigmentary changes.
This case differs from the morning glory disc anomaly in that there is no fibrotic tuft in the center, and the classic morning glory disc has an increased number of blood vessels that curve as they exit from the disc and then straighten. Our patient does have an increased number of blood vessels crossing the disc margin, but there is prominent blood vessel branching.
The morning glory disc anomaly is unusually unilateral and sporadic, but it can be associated with other developmental abnormalities involving failure to close fetal clefts, for example in the mouth, nasal bridge, and upper lip.