Here are my prescriptions from my contact lenses:
Right: SPH -6.50, CYL -0.75, AX 90, BC 8.7, DIA 14.5
Left: SPH -7.50, CYL -0.75, AX 90, BC 8.7, DIA 14.5

This puts me at -6.88D and -7.88D according to a calculation I found on the internet. I have also read on the internet that wavescan has only been approved by the FDA to treat up to -6D.
The lasers that are available to me, in this area, are the VISX STAR4 Wavescan, and regular VISIX. The Bausch & Lomb Technolas 217z Zyoptix System is available 3 ½ hours away.

I am interested in getting LASIK from the best technology available in my area. Does my prescription put me at greater risk using the wavescan? What is the safest laser for my prescription?

Thanks.

My mom also wears -7.5 contacts but her glasses are alot higher than -7.88 so the calculation is wrong. I am a -5 in glasses but see fine with -4 contacts. I have found the difference is 1.25x due to vertex distance. 6.5 and 7.5 might(get tested) be 8 and 9.25 in glasses. Of course you can find out for sure by getting a manifast refraction with a phororapter. If you are over 40, you may want to discuss clear lens
extraction IOLs with your doctors. Any surgury has risks.

Fist - VISX wavefront is now approved for high myopia - so you are eligible.

Ace - the formula was correct as far as the spherical equivelant of the contact lenses.

Ace - you are correct that the eye glass prescription is more myopic than the contact lens prescription.

Bill Trattler, MD
Miami, FL