Surgical Techniques


  • Treatment of refractive defects.  

Patient's selection 

  • Inclusion criteria
    - Patients suitable for LASIK or surface ablation,
    - Keratometries between 39 - 48 D when using single use rings and between 39 - 49 D when using reusable rings.
  • Exclusion criteria
    - Patients with any pathologies such as pterygium, keratoconus, corneal ulcers, corneal scars etc. that could have damaged Bowman’s membrane,
    - Patients who have had a foreign body removed.


Users Manual & Nomograms

These documents are accessible to Users only.
To download them please sign up on Library heading click here

Surgical Video 


By courtesy of James S. Lewis, MD
(Elkins Park, PA, USA)


Click here to learn more about the Surgical Technique by Dr. Lewis