Unmeasurable small size superficial and deep foveal avascular zone in nanophthalmos: the Collaborative Nanophthalmos OCTA Study.

Aim: To study the macular structure and vasculature in consecutive nanophthalmic eyes using optical coherence tomography angiography.

Methods: This is a prospective, multicentre, cross-sectional study of patients with nanophthalmos (one or both eyes). The superficial and deep foveal avascular zones (FAZ) were measured both manually and with the machine's built-in automated measurement tool.