Local
The procedure involves an excimer laser used to reshape your cornea to correct the imperfections in your cornea. Essentially in such cases:
- Advanced astigmatism
- Corneal abberations (An aberration is a distortion acquired by a wavefront of light when it passes through an eye with irregularities of its refractive components)
- Still having vision problems after previous Lasik procedure
- Previous cataract or cornea surgeries