Post Lasik surgery (done 2 times in my right eye and once on my left eye) , power still came back to my eyes and I have been using RGP lenses since then. Now I am told to go for C3R surgery especially in the right eye as I have Keratoconus and If i dont do it i will have to go for keratoplasty.The corneal thickness in right eye is 404 microns and left eye 465 microns. Kindly advise if this surgery is advisable for me, is it safe and what will be the after effects. I am already suffering from the after effects of Lasik and do not want to take any more risks.