What is the best method of LASIK for a myopic patient with the power of -10?
All keratorefractive surgery for nearsightedness works by reshaping and thinning the cornea of the eye (not the lens). These include LASIK, SMILE, PRK, epi-LASIK, PRK, etc. None of these is inherently "better," "safer," or more accurate than the others. There may be reasons that are particular to your individual situation that might suggest one to your doctor over the others.
In general, the higher the degree of nearsightedness (and astigmatism)that you need treated, the more risk you take. This is because the degree of re-shaping and thinning in your cornea is proportional to how nearsighted you are.
Although in the 90s LASIK was early on approved by the FDA for up to -12 diopters, extensive experience has convinced most reputable eye surgeons to "dial down" the upper limits of treatment to avoid possible long term problems in the cornea.
As an experienced surgeon who sees his own patients for many years after surgery, I would be very cautious about trying to treat -10 diopters with any keratorefractive procedure. There are alternatives (e.g. ICL) that do not involve the cornea you should investigate before deciding on any of the laser corneal procedures.
_Written by J. Trevor Woodhams, M.D. - Chief of Surgery, Woodhams Eye Clinic