Morning glory disc anomaly and irregular optic nerve thickness: an overlooked association

Abstract

Figures

A](#f1)). Funnel-shaped morphology of the optic disc (*black arrow*), adjacent retinal surface elevation and enhancement (*red arrow*), and irregular thickening of the nerve (*blue arrowheads*) were detected ([Figure 1B](#f1), [Figure 1C](#f1)). Irregular thickness of optic nerve occurs in 89% MGDA, the nature being uncertain^([1](#r1)^-^[3](#r3))^.

Full text

A 2-year-old patient had right ocular esotropia for 1.5 years. Right fundoscopy revealed a large disc, central glial tuft (arrow), and a halo of pigmentary changes in the peripapillary area surrounding the nerve (arrowhead) consistent with methylglycinediacetic acid (MGDA) (Figure 1A). Funnel-shaped morphology of the optic disc (black arrow), adjacent retinal surface elevation and enhancement (red arrow), and irregular thickening of the nerve (blue arrowheads) were detected (Figure 1B, Figure 1C). Irregular thickness of optic nerve occurs in 89% MGDA, the nature being uncertain^(1^-^3)^.