An abnormal layer of tissue, pus, etc., covering the surface of the eye or eyelid; (also) †an opacity of the cornea or lens (obsolete). Also (more…

A white film or web on the cornea of the eye. Obsolete.

An opacity or clouding of the cornea of the eye; an albugo or pterygium; (perhaps also) a cataract. Often in combination with pin: see pin and web n.…

Originally: a spot in the eye; a corneal opacity. Later (English regional): a defect in vision (of unknown type). Obsolete.

A natural structure having the form of a pin. Medicine. An opacity of the cornea; the condition of having such a lesion; (perhaps also) a cataract…

Chiefly Medicine. Originally: †a film or membrane over the eye (obsolete). Later: †cloudiness of the cornea (obsolete); a circumscribed area of this…

Transferred uses. A film formed over the eye. Obsolete.

Medicine. Opacity or clouding of the cornea, lens, etc., of the eye. Also: blurred vision or loss of visual clarity, contrast, or brightness…