Changes of Ocular Surface Before and After Treatment of Blepharoptosis With Combined Fascial Sheath Suspension and Frontal Muscle Flap Suspension

OBJECTIVE: To explore the ocular surface changes after ptosis surgery in patients with severe congenital blepharoptosis. METHODS: The patients were divided into group A and group B, Group A received conjoint fascial sheath suspension, and group B received frontal muscle flap suspension. The ocular surface changes were followed upon the 7th day and in the 1st and 3rd month after operation, which included Schirmer test (ST), break-up time (BUT), tear meniscus height (TMH). For normal distribution variables, t test was used before and after operation, and the Wilcoxon test was used for variables with abnormal distribution. RESULTS: Compared to preoperative status, the ST and TMH were not significantly changed after surgery (P > 0.05), but BUT higher on the 7th day and in the 1st and 3rd month after operation (P < 0.05). The fluorescence staining (FL) score was higher in the 3rd month than that in the 1st month (P < 0.05), but was not significantly different between the 7th and in the 1st month after operation (P > 0.05). The ST, TMH, and BUT after surgery were not significantly different between groups of A and B (P > 0.05), but the FL score lower in the 3rd month than on the 7th day and in the 1st month after operation (P < 0.05). CONCLUSIONS: The ST, BUT, and TMH were not significantly changed after surgery between groups of A and B, but the FL score was lower in group A than that in group B in early postoperative time.