Ratio of optic cup to optic disc. In relation to axial length of eyeball and refraction.
D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D005123:Eye / Q000033:anatomy & histology*; D005260:Female; D005654:Fundus Oculi; D005826:Genetics, Medical; D006801:Humans; D006956:Hyperopia / Q000473:pathology; D008297:Male; D009216:Myopia / Q000473:pathology; D009900:Optic Nerve / Q000033:anatomy & histology*