Abstract

Cone center-to-center spacings were determined on a strip of human retina extending from the foveal center along the temporal horizontal meridian to ~2.0° of retinal eccentricity. The retina was obtained from a 35-year-old male (H4 of Curcio et al,¹) and has a cone density close to the average reported for young adults.¹ A retinal whole mount² was viewed with Normarski differential interference microscopy at a level just vitreal to the ellipsoid-myoid junction. Positions of the cone centers were digitized from photomicrographs, and the distributions of nearest-neighbor distances^3,4 were obtained for adjacent 0.165°² windows. We find an increase in receptor spacing over this 2.0° region that is similar to that previously reported for monkey³ and human.⁵

© 1987 Optical Society of America