Figure 1
From: Retinal tissue and microvasculature loss in COVID-19 infection

SD-OCT measurement of inner retinal thickness and volume* computed from the difference between (A) (Inner retinal layer = ILM + ELM) and (B) (Outer nuclear layer = OPL + ELM). SD-OCT spectral domain-optical coherence tomography, ILM internal limiting membrane, ELM external limiting membrane, OPL outer plexiform layer. *values of thickness and volume are in μm and mm3, respectively.