Munson's sign

Munson's sign
Differential diagnosis	Keratoconus

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.[1]

It is named after American ophthalmologist Edwin Sterling Munson (born May 8, 1870 – died Feb. 2, 1958).[2][3]

References

Agarwal, Amar (2006), Handbook of Ophthalmology, SLACK, p. 234, ISBN 1-55642-685-2
The National cyclopaedia of American biography: Volume 46
Bartolucci, S L.; Stedman, T L.; Forbis, P. (2005), Stedman's Medical Eponyms, Lippincott Williams & Wilkins, p. 505, ISBN 0-7817-5443-7

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[1] Agarwal, Amar (2006), Handbook of Ophthalmology, SLACK, p. 234, ISBN 1-55642-685-2

[2] The National cyclopaedia of American biography: Volume 46

[3] Bartolucci, S L.; Stedman, T L.; Forbis, P. (2005), Stedman's Medical Eponyms, Lippincott Williams & Wilkins, p. 505, ISBN 0-7817-5443-7