Increased tear evaporation in eyes with keratoconjunctivitis sicca. 1983

M Rolando, and M F Refojo, and K R Kenyon

The terms dry eye and keratoconjunctivitis sicca (KCS) imply a condition of highly reduced or absent tear film that often is not clinically demonstrable despite the presence of other signs and symptoms. In 52 patients with KCS symptoms, either with or without tear volume reduction as measured by Schirmer's basic secretion test, we found a statistically significant increase in water evaporation rate from the tear film when compared with normal subjects. Such an increased evaporation rate might account for the tear hypertonicity known to be associated with KCS and postulated to be responsible for ocular surface damage. Thus, we propose to identify this group of paradoxically wet "dry eyes" as a "syndrome of increased tear evaporation", which better describes the pathogenesis of the ocular condition.

UI MeSH Term Description Entries
D007637 Keratoconjunctivitis Simultaneous inflammation of the cornea and conjunctiva. Keratoconjunctivitides
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D013666 Tears The fluid secreted by the lacrimal glands. This fluid moistens the CONJUNCTIVA and CORNEA. Meibomian Lipids,Meibum,Lipid, Meibomian,Meibomian Lipid,Tear

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