Optics of the eye of the "four-eyed fish" (Anableps anableps).
D000065:Accommodation, Ocular / Q000187:drug effects*; D000388:Air; D000818:Animals; D001699:Biometry; D005399:Fishes / Q000502:physiology*; D007908:Lens, Crystalline / Q000033:anatomy & histology; D010862:Pilocarpine / Q000494:pharmacology; D011680:Pupil / Q000033:anatomy & histology; D012029:Refraction, Ocular; D014785:Vision, Ocular; D014867:Water
D010862:Pilocarpine; D014867:Water