Will Keratectasia be a Major Complication for Lasik in the Long Term?

Whereas the biomechanical factors of the cornea with respect to elasticity and posterior corneal asphericity have been partly elucidated clinically by Roberts et al and experimentally by Muller et al, the effect of the lasik flap on the eventual outcome has not been entirely evaluated. While Barraquer described the importance of total corneal thickness (TCT) and residual stromal bed thickness (RSB) in the prevention of post MKM keratectasia, and Ruiz and Casebeer, the significance of leaving at least 30% TCT beneath an ALK incision for hyperopia, it has been shown by Reinstein using Artemis 3D pacymetry in cases…