Iris Recognition Technology
Iris Recognition technology maps the entire iris, generating a unique digital Zy-id™ for each patient. The Zy-id™ is stored with the patient's treatment file and used for automatic recognition to ensure that the correct patient and eye is treated. The Zy-id™ allows for a rapid patient identification and automatically transfers the data from the Wavefront analyzer to the laser without human error. The Bausch & Lomb Z100™ with the Zy-id™ is the first refractive laser where an accidental mix up of treatments can not occur, example: someone else's prescription is put onto your eye or a right eye treatment is placed on the left eye by accident.
The data collected in the pre-operative exam is aligned exactly during surgery and corrects for cyclotorsion and pupil shift for a safer and more accurate treatment. Cyclotorsion is the slight shift of the eye that could occur when the patient changes from a sitting position (pre-operative assessment) to lying down on the surgical bed on the day of surgery.
Read the February 15, 2005 article from "Review of Opthalmology" on the benefits of Iris Recognition.
The precise rotational position of the eye during surgery by matching the iris patterns to the one taken by the abberometer. This allows the laser to correct for “cyclotorsion”- the slight rotation of the eye that can occur when the patient changes from a sitting up to a laying down position. (see above diagram)
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