平常久已为大家所熟悉的滤过性手术,如角巩膜环鑽术和虹膜嵌頓术等,虽然有比較高的疗效,但还存有不少的問題,失效者占数仍多。大家都希望能再得到进一步地改进,以适应現代临床的需要。从文献上看,最近世界各地的眼科工作者,在这方面做了不少的努力,报导了一些改进的手术方法。 Usually for a long time we are familiar with the filtering surgery, such as the corneal scleral ring drilling and iris incarceration, etc., although there is a relatively high curative effect, but there are still many problems, the number of failures accounted for. We all hope that we can get further improvements to meet the needs of modern clinical. From the literature point of view, ophthalmologists from all over the world recently made a lot of efforts in this regard and reported some improved surgical methods.