[Long-term curative effect of cryotherapy for malignant ocular tumours].Zhonghua Yan Ke Za Zhi. 1993 May; 29(3):154-6.ZY
66 malignant cases (2.7%) among 2401 patients of ocular tumours were treated with cryotherapy, and the tumours disappeared with satisfactory functional and cosmetic results. The cases were followed up 3-10 years (70% over 5 years), averaging 6.5 years. 6 cases (9%) recurred, 5 cases in the first and 1 case in the 9th postoperative year. The author analysed the causes of recurrence and discussed means to prevent it.