LASIK and Refractive

Refractive errors can be corrected by simple means as with Spectacle lenses and Contact lenses - which correct the errors as along as they are worn.

However, LASIK and allied surface procedures and intra ocular implants - Provide for permanent refractive error correction.

LASIK corrects moderate errors, by sculpting the Cornea while intra ocular implants (Implantable Contact Lens - ICL) can correct much higher errors in suitable eyes.