Also found in: Medical, Encyclopedia, Wikipedia.


A condition of ingrowing hairs about an orifice, especially ingrowing eyelashes.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Pathology) an abnormal position of the eyelashes that causes irritation when they rub against the eyeball
2. (Pathology) the presence of hairlike filaments in the urine
[C17: via Late Latin from Greek trikhiasis, from thrix a hair + -iasis]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(trɪˈkaɪ ə sɪs)

a condition in which the eyelashes grow inwardly.
[1655–65; < Late Latin < Greek trichíāsis. See tricho-, -iasis]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


a condition in which the hair grows inward, especially the eyelashes.
See also: Hair
a condition in which the hair, especially of the eyelashes, grows inward.
See also: Eyes
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
Mentioned in ?
References in periodicals archive ?
Summary: New Delhi [India], July 13 (ANI): Union Health Ministry has received fresh cases of trachomatous trichiasis (TT) with prevalence rate at 3.5 per 1,000 population while the World Health Organisation (WHO) restricts the disease's prevalence to less than two per 1,000 population.
It can also be used with patients who have lid conditions such as trichiasis, entropion or ectropian.
Out of 50 cases, 33 cases (66%) had trauma, 5 cases (10%) had trauma plus chronic dacryocystitis, 2 cases (4%) had chronic dacryocystitis, 1 case (2%) had trichiasis and 9 cases (18%) had no predisposing risk factor.
Case-patient 1 was a 38-year-old woman from Oroshi with a 5-month history of trachomatous trichiasis (TT), pain, madarosis, blepharitis, and conjunctivitis in both eyes.
Most of them concern eyelid surgery, where the topics include trichiasis and distichiasis, ectropion, and upper eyelid reconstruction.
The statement went to say that West has been jointly awarded the prize for her dedicated research focused in Africa on ways to improve trichiasis surgery outcomes and eliminate blinding trachoma.
'We are conducting trichiasis surgeries for 1,000 people for a start out of more than 16, 000 people, who have trachoma trichiasis, and have gone blind from the effect of trachoma.
With increasing age, frequency and duration of infection becomes less frequent Trachoma trichiasis symptoms are constant eye pain, light intolerance, corneal scaring, irreversible opacities and blindness.
In Iraq, the common risky factors for microbial keratitis are corneal abrasions, and ocular surface disorders such as dry eye, trichiasis, old scars and most of them are sequels of cicatricial trachoma (8).
Through surgery for trichiasis, antibiotic treatment, face washing, and environmental improvements strategy, the prevalence of trachoma has sharply declined in recent decades.[15] In 2015, it was pronounced that trachoma has been eliminated in China (prevalence <5%).
Patients with dry eye severity level 4 (severe and/or disabling constant discomfort and visual symptoms, marked conjunctival injection, filamentary keratitis, mucus clumping, tear debris, ulceration, trichiasis, keratinization, symblepharon) were also excluded.
This herb has been used in traditional medicine as a cure for warts, trichiasis, and venomous bites [11].