Iatrogenic Keractasia

A Few Words About Post-Lasik Ectasia, also known as "Iatrogenic Keractasia"

According to the LASIK industry, post-LASIK ectasia is a very rare complication associated with a post-LASIK corneal thickness of less than 250 microns. It is caused by a decrease in the strength of the corneal wall which results in a steeping or bulging out of the anterior surface of the cornea. This event can take place days, months or years after the LASIK surgery. Post-LASIK ectasia is characterized by a rather sudden or rapid loss of vision in association with significant changes in the corneal topographies. The steepening of the cornea can take place in a very short amount of time. Many LASIK surgeons will want to perform invasive procedures such as intrastomal corneal rings (Intacs) to treat this condition.

I have examined well over a hundred post-LASIK patients suffering from this condition. Although it is not a common event, I don’t feel that it is rare. In addition, the progressive steepening of the cornea is short lived usually lasting a few weeks. In my opinion, I don’t think that any invasive procedures should be done to treat post-LASIK ectasia as additional procedures can produce unanticipated events. The best way to treat a patient with post-LASIK ectasia is to fit the involved eye(s) with a gas permeable scleral lens. It has been my experience that several weeks to a month following the onset of the LASIK induced ectasia, the great majority of eyes will become stable and remain that way for indefinitely.


"People who say it can't be done
shouldn't interrupt the guy doing it."
-- Roger D. Davis, PhD

Dr. Boshnick on CBS This Morning

See Dr. Boshnick and Dr. Morris Waxler (former FDA chief research scientist on refractive surgery) talk about bad LASIK