A comparative study of fibrin glue versus suturing on contrast sensitivity in patients undergoing pterygium excision with free conjunctival autograft

Abstract

Pterygium, a growth of the conjunctiva over the cornea, is a progressive disease leading in advanced stages to visual impairment, restriction of ocular motility, chronic inflammation and cosmetic concerns. Surgical removal is the treatment of choice, but recurrence can be a problem. The aim of this study is to comparation of fibrin glue versus suturing on contrast sensitivity in patients undergoing pterygium excision with free conjunctival autograft. Materials and Methods: In this cross-sectional descriptive-analytical study, 36 patients with pterygium and indication for pterygium surgery were included in this study in two groups of 18 patients. The first group underwent pterygium excision and conjunctivolimbal autograft using suture and the second group underwent pterygium excision and conjunctivolimbal autograft using Fibrin Glue. Patients' contrast sensitivity before and six months after surgery were measured using a F.A.C.T panel under the same conditions and by one person. Results: Among all the variables related to the history of disease and surgery, disease characteristics, symptoms and symptoms and recurrence of the disease in the subjects, the foreign body sensation in the groups of patients undergoing pterygium and conjunctival autograft by suture method was significantly higher than Fibrin Glue method (P = 0.026). Among the variables related to visual status and contrast sensitivity components, Log Cs far B before and after surgery, Log Cs far C after surgery, Log Cs near B before surgery and Log Cs near D before surgery in the groups of patients undergoing pterygium and conjunctival autograft by suture method was significantly higher than Fibrin Glue method (P <0.05). Between the time periods before and 6 months after surgery, the variables of Spherical equivalent refraction, Log Cs far C, Log Cs far D, Log Cs far E, Log Cs near C, Log Cs near D and Log Cs near E in the groups of patients undergoing pterygium and conjunctival autograft by Fibrin Glue method, the variables of Log Cs far B, Log Cs far E, Log Cs near B, Log Cs near D and Log Cs near E in the groups of patients undergoing pterygium and conjunctival autograft by suture method, there were no statistically significant changes (P >0.05); While in other variables, there were statistically significant changes between the time periods before and 6 months after surgery in the study groups (P <0.05).