• Tutorial on Z Axis Centration in Femto LASIK Surge Description: In this short video the FS200 Wavelight femtosecond laser is used to perform LASIK. The importance of Z axis centration is demonstrated. Submitted by Dr. A. John Kanellopoulos (Greece) Subspecialty: Refractive Management / Intervention Level: Beginner Uploaded By: ISRS Multimedia Library