cataract noun
Category: abnormalcy: perception.
1604, Cawdrey: Not listed.
1626, Cockeram: a distillation of humours out of the eyes.
1658, Phillips: (catarract)
(Greek) a great fall of water from a high place, a flood-gate, a port-cullis, also a disease in the eyes caused by a coagulation of flegme, between the Uveous Tunicle and the Christalline humour, hindring the egresse and ingresse of the visual spirits.
1676, Coles: a great fall of waters; a portcullis; also a distemper in the eye-sight.