Objective:To observe changes in tear film following a trabeculectomy procedure and its recovery.Methods:A total of 42 patients(42eyes)with acute angle-closure glaucoma that underwent trabeculectomy procedure were enrolled in this study.Patients′subjective feelings were surveyed 1 day,7 days,1month and 3 months after surgery,Test results including parallel tear breakup time,Schirmer test,corneal fluorescein staining were also observed.Results:One and 7 days following the surgery,scores of subjective discomfo...