Pattern of retinal ganglion cell loss in dominant optic atrophy due to OPA1 mutations.

Purpose The majority of patients with autosomal dominant optic atrophy (DOA) harbour pathogenic OPA1mutations. Although DOA is characterised by the preferential loss of retinal ganglion cells (RGCs), about 20% of patients with OPA1mutations will develop a more severe disease variant (DOA+), with additional neuromuscular features. In this prospective, observational case series, optical coherence tomography (OCT) was used to define the pattern of retinal nerve fibre layer (RNFL) loss in patients with both the pure and syndromal forms of DOA.