Iris fingerprinting: new method for improving accuracy in toric lens orientation.

摘要

Since the day that the Alcon toric intraocular lens (IOL) was approved, I have been searching for a better solution for orienting the IOL with greater accuracy. Using a marking pen has been a suboptimal approach because the mark is an inexact estimation that seems counterintuitive to the precision that defines contemporary refractive cataract surgery. Moreover, the mark can easily diffuse 10 degrees or even disappear entirely by the time the surgeon sits down to operate.