distichia[dis-tik´e-ah] (distichiasis [dis″tĭ-ki´ah-sis]) the presence of a double row of eyelashes, one or both of which are turned against the eyeball.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A congenital, abnormal, accessory row of eyelashes.
[G. di- double, + stichos, row]
Farlex Partner Medical Dictionary © Farlex 2012
distichiasisThe presence of an extra row of eyelashes, on the inner margin of the eyelid, that often causes severe discomfort from contact with the eye.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Congenital anomaly in which there is a double row of eyelashes in the lid margin, one row being normal and the other row turning inward towards the eye. Distichiasis can also be acquired following scarring or chemical and physical injury. If there are symptoms, treatment consists of removal of the aberrant eyelashes, usually by cryotherapy (removal under cold or freezing conditions) or electrolysis. See epilation; polystichia; trichiasis.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann