Optic disc, rim and peripapillary chorioretinal atrophy in normal Japanese eyes: the Kumejima Study.

The averages and distribution of the optic disc and rim area, β-PPA area and its angular extent in normal Japanese are reported, which will facilitate screening of glaucoma in Japanese. In normal Japanese eyes, the disc size and intraocular pressure significantly correlated with the rim area, and the axial length with β-PPA area.