AIM: To evaluate the efficacy and characteristic of lock stitch suture with bandage contact lens for pterygium.

METHODS: A prospective randomized controlled double-blind study was conducted. Totally 140 cases(140 eyes)with pterygium were involved in the study from January 2014 to December 2015. All cases were randomly divided into two groups: 68 cases(68 eyes)in Group A received lock stitch suture, while 72 cases(72 eyes)in Group B received lock stitch suture with bandage contact lens. The postoperative reaction, effect, complications and so on were retrospectively analyzed between two groups.

RESULTS: One week later, the pain index scores at 1, 3 and 7d after surgery were 1.62±0.71, 0.83±0.52, 0.31±0.36 in Group A, and the pain index scores were 0.98±0.47,0.27±0.14, 0.12±0.21 in Group B, there were significant difference between the two groups(t=6.23, 8.56, 7.03, P<0.05), and the difference were statistically significant within Group A and B(F=8.60, 13.60, P<0.01); 4 of 68 eyes(5.9%)were recurrence after 1a in Group A and 4 of 72 eyes(5.6%)were recurrence in Group B, demonstrating no significant differences(P>0.05); 10 of 68 eyes(14.7%)with complications in Group A and 3 of 72 eyes(4.2%)with complications in Group B, demonstrating significant differences(χ²=4.61, P<0.05).

CONCLUSION: A good result can be obtained by using the lock stitch suture with bandage contact lens in the treatment of pterygium. The lock stitch suture with bandage contact lens could significantly release pain response, it can significantly reduce the probability of the concurrent appearance.