Acta ophthalmologica · 1986
Tear film flow and stability in herpes simplex keratitis and chronic blepharitis.
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Moudgil S S, Singh M, Parmar I P, Khurana A K
Аннотация
Tear film flow and stability studies were carried out in patients suffering from herpes simplex keratitis and chronic blepharitis by performing Schirmer test I and tear film break-up-time (BUT) measurements. In herpes simplex keratitis the values of BUT were within normal limits. Values of Schirmer test I were significantly higher (t-test, P less than 0.001) in these patients and are considered to be due to reflex hypersecretion of tears. Schirmer test I was found to be unaffected, whereas the values of BUT seen were significantly lower (t-test, P less than 0.001) in patients suffering from chronic blepharitis. These lower values of BUT can perhaps be attributed to the altered resurfacing of precorneal tear film as a result of changes in the lid margins.