一种新型显微外科角膜环钻。

Ophthalmic Surg. 1979 Jul;10(7):55-8.

A new corneal trephine has been described which allows the surgeon to see the circumference of the cutting edge, as well as most of the cornea, lens and iris, while looking through the operating microscope. The trephine has a 3-mm cutting ring supported by an open "branding iron" structure.

一种新型角膜环钻已被描述，它能让外科医生在通过手术显微镜观察时看到切割边缘的圆周以及大部分角膜、晶状体和虹膜。该环钻有一个由开放式“烙铁”结构支撑的3毫米切割环。