Conduct further checks (corneal tomography, epithelial thickness mapping and corneal biomechanical metrics) as necessary to make sure you can safely and securely have LASIK. These checks evaluate the thickness, condition and toughness of the eyes. Regression. Regression is when your eyesight little by little variations back towards your initial prescription. https://bailoutdirectory.com/listings848660/how-much-you-need-to-expect-you-ll-pay-for-a-good-lasik-treatment