Predictability of Visual Function and Nerve Fiber Layer Thickness by Cross-Sectional Areas of Extraocular Muscles in Graves Ophthalmopathy

For patients with Graves ophthalmopathy, the cross-sectional area of all rectus muscles was significantly correlated with visual function. The enlargement of extraocular muscles can be an early sign of optic neuropathy prior to perceived clinical symptoms. Furthermore, it is possible to predict visual function change using the cross-sectional area of all rectus muscles.