Munson's sign
Encyclopedia
Munson's sign is a V-shaped indentation observed in the lower eyelid when the patient's gaze is directed downwards. The medical sign
is characteristic of advanced cases of keratoconus
and is caused by the cone-shaped cornea
pressing down into the eyelid. It is named after American ophthalmologist Edward Sterling Munson.
Medical sign
A medical sign is an objective indication of some medical fact or characteristic that may be detected by a physician during a physical examination of a patient....
is characteristic of advanced cases of keratoconus
Keratoconus
Keratoconus , is a degenerative disorder of the eye in which structural changes within the cornea cause it to thin and change to a more conical shape than its normal gradual curve....
and is caused by the cone-shaped cornea
Cornea
The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. Together with the lens, the cornea refracts light, with the cornea accounting for approximately two-thirds of the eye's total optical power. In humans, the refractive power of the cornea is...
pressing down into the eyelid. It is named after American ophthalmologist Edward Sterling Munson.