由于缺乏实际可行的活检技术,阻碍了人们对许多类型的脉络膜和视网膜病理的了解。本文介绍应用低血压麻醉、经巩膜进行活检技术,经狗眼试验,很少或无玻璃体丢失,乃应用于5例人眼。例1-3,年龄35～45岁,视网膜局部有高起之色素性实质包块,周围视网膜有浆液性脱离,经荧光素血管造影、~(32)P同位素试验及超声波检查证实为脉络膜黑色素瘤。但肿瘤过大不适宜放 Lack of practical biopsy technology hinders people’s understanding of many types of choroidal and retinal pathologies. This article describes the application of hypotensive anesthesia, scleral biopsy technology, the dog’s eye test, with little or no loss of vitreous, is applied to 5 cases of human eyes. Cases 1-3, aged 35 to 45 years old, the retina has elevated the quality of the substantive mass of the mass, the surrounding retinal serous detachment by fluorescein angiography, ~ (32) P isotope test and ultrasound confirmed as choroidal melanin tumor. But the tumor is too large not suitable to put