To compare tear film breakup time test with Schirmer's test in patients with pterygium. The case-control study, involving 86 patients with unilateral primary pterygium aged between 30 and 70 years, was conducted at the Department of Ophthalmology, Karachi Medical and Dental College, Abbasi Shaheed Hospital, from May to December The eye with pterygium was taken as the case, and was compared with the other eye without pterygium which was taken as the control in these patients. All patients underwent routine ophthalmic examination. Tear film tests such as Schirmer's test and tear film breakup time test were performed on all these eyes.
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Tear Film Break-up Time in Bipolar Disorder
Open in a separate window Discussion TBUT is a method for determining the stability of the tear film and checking for evaporative dry eye Our study revealed that long term lithium carbonate and sodium valproate therapy reduced the results of the time for tear film break—up. The TBUT results for both lithium-treated and valproate-treated patients were similar. This value is similar to that reported by several previous studies, 10 , 13 but lower than that reported by some others 14 , According to these studies, the TBUT value may vary in different populations.