Fraunfelder F T, Petursson G J
Ophthalmic Surg. 1979 Aug;10(8):42-6.
Cryosurgical destruction of eyelashes has been successful using a double freez-thaw liquid nitrogen spray technique. While other cryogens are successful in treating trichiasis, they are contraindicated in the treatment of malignant eyelid lesions. If the clinician intends to treat both these entities, it would be simpler to use a liquid nitrogen unit; otherwise, two separate cryosurgical instruments would be required. The liquid nitrogen treatment requires two cycles of a rapid freeze to -15 degrees C coupled with a slow thaw and has given us a 90%+ success rate. Contraindications in treating trichiasis with cryotherapy include paralytic lids and heavily pigmented patients. In general, we do not treat trichiasis involving less than one-third of the lid, especially with young, healthy-appearing lid margins.
使用双次冻融液氮喷雾技术进行睫毛的冷冻手术破坏已取得成功。虽然其他冷冻剂在治疗倒睫方面很成功，但它们在治疗眼睑恶性病变时是禁忌的。如果临床医生打算治疗这两种情况，使用液氮装置会更简单；否则，就需要两台单独的冷冻手术器械。液氮治疗需要两个快速冷冻至-15摄氏度并缓慢解冻的周期，这给我们带来了90%以上的成功率。冷冻疗法治疗倒睫的禁忌包括麻痹性眼睑和色素沉着严重的患者。一般来说，我们不治疗累及不到三分之一眼睑的倒睫，尤其是对于年轻、外观健康的眼睑边缘。
