Quantitative optical coherence tomography findings in a 4-year-old boy with typical morning glory disk anomaly.

Morning glory disk anomaly (MGDA) is a congenital malformation of the optic disk that is usually unilateral. It has characteristic fundus findings, including enlarged optic disk opening and funnel-shaped excavation of the peripapillary fundus. Optical coherence tomography (OCT) with micrometer resolution and cross-sectional imaging capabilities can provide detailed information about the structure of the living eye. Some reports have used OCT to demonstrate the structure of the disk in older patients with MGDA but, to our knowledge, no quantitative OCT report concerning a child with MGDA has been published previously.