Freeman J M
Trans Sect Ophthalmol Am Acad Ophthalmol Otolaryngol. 1975 Nov-Dec;79(6):OP874-9.
The problem of a chronic dry eye was approached with the idea of conserving the basal state of tears by inserting a plug to block the lacrimal outflow. The involved anatomy, punctum plug design, method of insertion, and postinsertion instructions were discussed. The results of three patient groups were given and failures discussed. Success in the test group fell between 50% to 75%. Successful insertion and acceptance of the punctum plug should probably exceed 75% in clinical practice.
对于慢性干眼症问题，采用了通过插入塞子来阻塞泪液流出以维持基础泪液状态的方法。文中讨论了相关的解剖结构、泪点塞设计、插入方法以及插入后的注意事项。给出了三组患者的结果并讨论了失败情况。试验组的成功率在50%至75%之间。在临床实践中，泪点塞的成功插入和接受率可能应超过75%。
