治疗B组：36例(49只眼)，丝裂霉素局部湿敷。

Group B: 36 patients (49 eyes), were treated with mitomycin wet dressing.

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醋酸白试验：即用5%醋酸溶液外搽或湿敷患处，3 ~ 5分钟后，病灶局部变白且境界清楚者为阳性。

Acetowhitening test: 5% acetic acid solution Waicha or wet dressing, 3 ~ 5 minutes later, the local white lesions were positive and clear boundary.

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亚临床感染病损用3%—5%醋酸液局部外涂或湿敷5—10分钟，感染区可发白，即所谓醋酸白现象。

Subclinical infection lesion with 3% - 5% acetic acid solution with topical or wet compress 5 to 10 minutes, the affected area can be white, the so-called Acetowhitening phenomenon.

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