In a normal eye, stem cells in the limbus are like factories, churning out new cells to replace dead corneal cells.
正常眼睛中的异色边缘中的干细胞就象工厂，能够生产出新的细胞来替代死亡的角膜细胞。
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Corneallimbus stem cells are the source of corneal epithelial renewal and they help maintain the integrity of cornea.
角膜缘干细胞是角膜上皮更新的源泉，维持角膜完整性。
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Conclusion: Retrograde excision of pterygium combined with autotransplantation of corneallimbus stem cells decreases the rate of recurrence and promotes the effect of cosmetology.