Clinical study on tear film changes after phacoemulsification combined with intraocular lens implantation

Objective To investigate the tear film changes after phacoemulsification combined with intraocular lens implantation.Methods Seventy-five patients(75 eyes) with cataract who had undergone phacoemulsification combined with intraocular lens implantation from Jan 2007 to Jan 2008 were concluded in the study.Subjective scores for dryness,corneal fluorescein staining,tear break-up time and Schiermer test values were measured preoperatively and 1 day and 7,14,30 days postoperatively.Data were analyzed by SPSS 16.0.Results At l day and 7,14 days postoperatively,the mean tear break-up time all reduced greatly,but the grades of subjective score for dryness and corneal fluorescein staining increased significantly(P0.05).From the 7th day,there was no significant difference in the SIT value.At 30 days postoperatively,all indexes recovered to the preoperative levels(P0.05).Conclusions Phacoemulsification combined with intraocular lens implantation might relate to the changes of postoperative tear film stability in a short term,which would recover 1 month later.