Macular Telangiectasia Type 2 Without Clinically Detectable Vasculopathy.

Abstract

Macular telangiectasia type 2 is a bilateral disease with characteristic alterations of the macular capillary network and neural atrophy. Vascular and neurodegenerative hypotheses have been proposed to explain these clinical findings, but many questions regarding the pathogenesis remain. We report the case of a 69-year-old woman with macular telangiectasia type 2 in whom multimodal fundus imaging identified neuronal features without clinically detectable vasculopathy. We hypothesize that parallel neuronal and vascular pathogenic pathways secondary to Müller cell dysfunction, the cause of which remains obscure, explain the clinical features of this case of macular telangiectasia type 2.