方法：选取原发性翼状胬肉患者47例60眼分为两组，A组24例30眼，B组23例30眼。A组应用2.5mm巩膜隧道刀锐性切除角膜上翼状胬肉头部，B组应用有齿镊钝性分离撕除角膜上翼状胬肉头部。分别在术后1、3d，1wk，1mo观察角膜上皮修复情况及不适症状。

结果：术后1、3d，B组的角膜修复优于A组。术后1d睁眼疼痛、畏光流泪、异物感A组较B组严重，差异具有统计学意义(P=0.005、0.015、0.012)； 术后3d睁眼疼痛、畏光流泪、异物感A组较B组严重， 差异具有统计学意义(P=0.019、0.018、0.015)； 术后1wk，1mo不适症状两组无统计学差异(P>0.05)。

结论：与锐性分离相比较，翼状胬肉手术最好选用钝性分离胬肉头部与角膜粘连。

METHODS: Forty-seven cases(60 eyes)of primary pterygium were excised under microscope with limbal epithelial transplantation, with sharp dissection(24 cases, 30 eyes, Group A)and blunt dissection(23 cases, 30 eyes, Group B). All cases were followed up for 1d to 1mo.

RESULTS: The recovering of corneal wound was better in Group B on 1st day and 3rd day after surgery. Pain, photophobia and tears, foreign body sensation were more serious in group A on 1st day after surgery with a statistically significant difference(P=0.005,0.015,0.012). Pain, photophobia and tears, foreign body sensation were more serious in Group A on 3rd day after surgery with a statistically significant difference(P=0.019,0.018,0.015). There was no statistically significant difference on 1wk and 1mo after surgery(P>0.05).

CONCLUSION: Compared with sharp dissection, primary pterygium excised with blunt dissection can significantly improve recovering of corneal wound and postoperative discomfort.