part_of part of part of has part has part has_part has quality continuous with develops from developmentally induced by contributes to morphology of Homo sapiens transparent cornea http://upload.wikimedia.org/wikipedia/commons/1/1e/Schematic_diagram_of_the_human_eye_en.svg corneal Compared to terrestial animals, the cornea of zebrafish is relatively flat. It consists of nonpigmented, stratified squamous nonkeratinizing epithelial cells, attached to a thick basement membrane that is considered to be analogous to the Bowman's membrane in mammals. In fish, and aquatic vertebrates in general, the cornea plays no role in focusing light, since it has virtually the same refractive index as water corneal epithelium sclera anterior segment of eyeball optic eminence anterior limiting lamina of cornea lens vesicle corneal primordium multicellular anatomical structure neural crest-derived structure ocular surface region tunica fibrosa of eyeball