Objective To study the application effect of bandage corneal contact lens in ptosis during surgical treatment.Methods A total of 62 patients(73 eyes) with primary congenital ptosis in the First People's Hospital of Xiantao from March 2013 to March 2016 were randomly divided into group A,group B and group C.All of the three groups were treated by shortening levator palpebrae superioris muscle.The A group[20 cases(24 eyes)] began to wear bandage corneal contact lens during the operation.The B group [22 cases (25 eyes)] began to wear bandage corneal contact lens at the end of surgery.And the C group [20 cases (24 eyes)] took conventional methods for covering operative eyes.Postoperative follow-up lasted for 3 months,the postoperative FL staining scores and ocular pain severity were compared among the three groups.Results Comparison of postoperative FL staining scores:there was no statistically significant difference between B group and C group at postoperative 1 day(q =0.537,P ＞ 0.05),but the differences between B group and A group were statistically significant (q =10.876,11.298,all P ＜ 0.05),the differences among the three groups were statistically significant at the 7th day after surgery (q =8.682,4.048,4.722,all P ＜ 0.05).There was no statistically significant difference between B group and A group at postoperative 2 weeks (q =1.635,P ＞ 0.05),but the differences between group A/B and group C were statistically significant (q =8.747,7.201,all P ＜ 0.05).There were no statistically significant differences among the three groups at postoperative 3 months (q =1.607,0.186,1.438,all P ＞ 0.05).Comparison of postoperative ocular pain severity:there were no statistically significant differences among the three groups at postoperative 1 day (q =0.986,0.586,0.410,all P ＞ 0.05).At postoperative 7 days,there was no statistically significant difference between A group and B group (q =0.948,P ＞ 0.05),but the differences between A/B group and C group were statistically significant (q =4.743,3.843,all P ＜ 0.05).There were no statistically significant differences among the three groups at postoperative 1 month (q =3.181,0.599,2.654,all P ＞ 0.05).Postoperative upper eyelid radian and double eyelid plasty in all of 62 cases(73 eyes) was satisfied and the width of palpebral fissure when look straight was normal and locating above superior margin of pupil,but there were 16 eyes with slightly hypophasis which were all naturally closed good after 1 to 2 months without surgical incision infection and corneal infection.Conclusion It is effective to protect the cornea since intraoperative application of bandage corneal contact lens,and it with high safety to wear corneal contact lens shortly after surgery,which can promote corneal epithelial wound healing,reducing incidence of exposure keratitis,at the same time,it can obviously relieve ocular pain in patients.