LASIK is designed to treat a broad spectrum of refractive errors. Understanding which prescriptions are suitable helps you set the right expectations before surgery.
Myopia (Minus Power)
LASIK effectively treats myopia ranging from -0.5 diopters to -12 diopters. Most patients with up to -8D achieve outstanding results. Beyond -10D, outcomes remain excellent with Contoura Vision or InnovEyes, though the surgeon will assess residual corneal thickness carefully.
Hyperopia (Plus Power)
LASIK also treats hyperopia up to +6 diopters. The laser reshapes the peripheral cornea to increase its curvature. Results for hyperopia are slightly less predictable than myopia at higher powers, but modern AI-guided platforms have significantly improved accuracy.
Astigmatism
Astigmatism up to 6 diopters can be treated with LASIK. Contoura Vision and Topography-Guided LASIK are particularly effective for astigmatism, as they map the entire corneal surface and correct even subtle irregularities.
When Eyes May Be Too Bad for LASIK
Very high prescriptions may not leave sufficient corneal tissue after ablation. Alternatives like ICL (Implantable Collamer Lens) or PRK may be recommended. Our evaluation will determine the safest option for your case.