Melanin, a possible pigment for the photostable electrical responses of the eye.
D000221:Adaptation, Ocular / Q000502:physiology*; D000818:Animals; D001001:Anura; D003624:Darkness; D004594:Electrophysiology; D008027:Light; D008543:Melanins; D009799:Ocular Physiological Phenomena; D051381:Rats; D013696:Temperature
D008543:Melanins