Clinical study of artificial tears on the tear film of patients with dry eye before phacoemulsification

Objective To evaluate the changes in the tear film and the effects of artificial tears on the tear film of patients with dry eye after phacoemulsification.Methods Fifty-two patients with dry eye(60 eyes) were followed up after phacoemulsification to evaluate tear film.Preoperatively,the B group(30 eyes in 25 cases) was treated with Tear Naturale eyedrops and the A group(30 eyes in 27 cases) was not treated.Postoperatively,both the A and B groups were treated with TobraDex and Tear Naturale eye drops.Symptoms of dry eye,break-up time(BUT),and corneal fluorescein staining(CFS) were observed and measurements were taken with the Schirmer Ⅰ test(SItⅠ) at 15 days preoperatively and 1 day,1 week,1 month,and 3 months postoperatively.The results were analyzed with a t-test using SPSS 10.0.Results ① At 15 days preoperatively,there was no statistical difference between the two groups for symptoms of dry eye,SItⅠ,BUT and CFS(P 0.05).②At 1 day postoperatively,there were significant statistical differences between the two groups for symptoms of dry eye,CFS was less and BUT was longer in the B group(P0.05),but there was no statistical difference between the two groups for SIt Ⅰ(P 0.05).③At 1 week postoperatively,symptoms of dry eye and CFS were reduced and BUT was longer in the B group with significant differences(P0.05).There was no statistical difference between the two groups for SItⅠ(P0.05).④At 1 month postoperatively,CFS was less and BUT was longer in the B group with significant statistical differences(P0.05).There were no statistical difference between the two groups for symptoms of dry eye and SItⅠ(P0.05).⑤At 3 months postoperatively,there was no significant statistical differences for symptoms of dry eye,SItⅠ,BUT and CFS(P 0.05).Conclusion Using artificial tears before surgery can improve symptoms of dry eye and accelerate the recovery of the tear film.