Instrument for initiating the corneal intrastromal channel for the insertion of Intacs

Abstract

Surgical experience with Intacs implantation since 1995 has resulted in modifications of the surgical technique that simplify the procedure. We describe the Rosen propeller, an instrument designed to facilitate initiation of the intrastromal channels and enhance the ease of inserting the channel dissector. Its main advantage is that it enables the surgeon to achieve parallel-depth channels with greater accuracy than in previous methods and with minimal manipulation of the globe. The propeller technique provided an effective, accurate, and safe method of improving the Intacs procedure in 50 eyes.