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June 1968

On the Nature of Dellen

Author Affiliations

From the Department of Ophthalmology, New York University Medical Center (Dr. Baum), the Institute of Ophthalmology, College of Physicians and Surgeons, Columbia University (Dr. Mishima), New York, and the Cornea Service, Massachusetts Eye and Ear Infirmary, (Dr. Boruchoff), Boston.

Arch Ophthalmol. 1968;79(6):657-662. doi:10.1001/archopht.1968.03850040659002

Dellen are small, saucer-like excavations at the margin of the cornea. They occur most often following processes which produce a paralimbal elevation. It is suggested that this paralimbal elevation induces a localized break in the precorneal oily film layer of the tears which, in turn, causes a localized dehydration and thinning of the cornea. Treatment is directed towards rehydration of the cornea and reduction of the limbal elevation.

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