Elements of corneal anatomy and physiology.
D003228:Conjunctiva / Q000502:physiology; D003261:Contact Lenses; D003315:Cornea / Q000033:anatomy & histology* / Q000502:physiology* / Q000503:physiopathology; D005143:Eyelids / Q000502:physiology; D006801:Humans; D008566:Membranes / Q000033:anatomy & histology / Q000502:physiology; D012590:Sclera / Q000502:physiology; D013666:Tears / Q000502:physiology