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Bitot's spots
System: General & Eye–Ear Signs · All general & eye–ear signs
What it is — and how it is elicited
Foamy, whitish, slightly raised patches on the white of the eye near the cornea, made of keratin debris.
What a positive finding suggests
Associated with vitamin A deficiency, an important preventable cause of blindness worldwide.
◈ Behind the name
Pierre Bitot (1822–1888), French physician and anatomist.
Related signs — General & Eye–Ear Signs
Browse the B section of the A–Z list or return to the Clinical Signs hub.
Please note: This page is an educational reference about clinical examination signs. A clinical sign supports — and never replaces — a full clinical evaluation, examination and appropriate testing. A sign being present does not by itself prove a diagnosis, and an absent sign does not rule one out. If you have symptoms that worry you, see a health professional.