Open AccessTear break-up time in eyes with pterygia and pingueculae in Ibadan
Author(s) -
Muyiwa Balogun,
Adeyinka Ashaye,
B G K Ajayi,
O Osuntokun
Publication year - 2005
Publication title -
west african journal of medicine
Language(s) - English
Resource type - Journals
ISSN - 0189-160X
DOI - 10.4314/wajm.v24i2.28189
Subject(s) - pterygium , medicine , ophthalmology , conjunctiva , cornea , tears , significant difference , surgery , pathology
Ultraviolet (UV) rays and chronic irritation to dust have been implicated in the pathogenesis of degenerative conditions of the cornea and conjunctiva like pterygium and pinguecula. It has been postulated that exposure to these environmental factors cause corneal and conjunctival drying by disruption of the tear film. While some researchers have found tear film dysfunction in eyes with pterygia and pingueculae, others have found no such abnormalities. The differences in findings may be due to different methods of investigation, or differences based on geography and climate.