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A. P. Cuginotti, Jr., L. G. Serruya, D. C. Nogueira, R. Y. Hida; Schirmer I and Basal Schirmer Tests Performed With Opened and Closed Eyes: Variations in Normal Individuals. Invest. Ophthalmol. Vis. Sci. 2007;48(13):366.
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Analyze the differences between mesurements of Schirmer I and basal Schirmer tests in opened and closed eyes.
60 eyes of 30 normal subjects were studied. The average age was 28 ± 9 years old, air humidity was 60 ± 2,34 % and average temperature was 20,72 ±1,52 ºC. At the first day, Schirmer I test was performed with the eyes opened. After an interval of 6 hours, the Schirmer I test was performed with the eyes closed. At the second day, the same procedure was performed for the basal Schirmer test. Schirmer test measurement was compared and statistically analyzed.
Measurements of Schirmer I test performed with the eyes opened (18.85+-17.88) showed statistically greater values when compared with the same test performed with the eyes closed (10.30+-11.55) (p<0.0001). Measurements of Basal Schirmer test performed with the eyes opened 6.14+-6.13) showed statistically greater values when compared with the same test performed with the eyes closed (3.62+-2.93) (p=0.0038).
The Schirmer I and Basal Schirmer measurements performed with opened eyes were statisticaly different from the ones performed with the eyes closed.
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