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Foam in the external part of the eye
Author(s) -
Norn Mogens
Publication year - 1987
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1987.tb06992.x
Subject(s) - meibomian gland , canthus , tarsus (eyelids) , anatomy , age groups , eyelid , ophthalmology , medicine , materials science , demography , sociology
Foam in the external part of the eye has been measured at the slit‐lamp on 274 normal subjects. Foam occurred in 78%, most frequently in the outer canthus, on the skin round this, and in the lateral half of the lid margin. The age group of 30–50 years predominated. The foam‐covered areas averaged 1.1 mm 2 , the largest amount always being found laterally (0.93 mm 2 ). The lateral amount of foam was maximal in the age group of 30–50 years, while the medial maximum was seen in the age group of 60–70 years. The incidence of foam was not correlated to the lipid layer on the precorneal film, expressibility of Meibomian secretion, scales on the lid margin, or greasy hair. A hypothesis has been advanced for the mainly lateral position of the foam: blinking whips up the foam, which possibly has sebum admixed.