Your refractive error is possible to correct as long as you are not disqualified from the surgery during the preliminary examination. Thyroid diseases are not a contraindication to such a procedure, but it is necessary to provide a medical certificate from an endocrinologist attesting to the degree of the disease, stabilisation of hormone levels and lack of contraindications to the laser vision correction surgery. Strabismus cannot be corrected during a laser vision correction procedure (laser only reshapes the cornea), but it can disappear or at least be reduced once the refractive error has been eliminated.

