Results: There was no melanin granule in basalcelllayer in depigmented skin of 2 cases, which coincided in the pathogenic change of vitiligo.
结果：2例患者的皮肤色素脱失处基底层均未见黑素颗粒，符合白癜风的病理改变；
2
The stem cells of the basallayer of the limbal epithelium have function of cell renewal and tissue regeneration, and ocular surface disorders result from lack of the stem cells.