Primary pterygium的用法和样例：
例句
- Excision with conjunctival transplantation is useful to reduce the recurrence rate of primary pterygium.
逆行切除联合球结膜移植治疗翼状胬肉能减少初发性翼状胬肉的复发。 - Conclusion Lamellar keratoplasty implantation and epithelium of limbus implantation have remarkable effect on pterygium.
结论板层角膜移植联合角膜缘上皮移植术治疗翼状胬肉疗效显著。
