Great question. Patients who return for concerns of deteriorating vision after previous Lasik are evaluated for the cause of their reduced visual acuity.
Once organic diseases are excluded (including corneal ectasia, surface epitheliopathy from dry eyes, cataracts or retinal issues) and if simple myopic regression is the cause, then the options available to the patient are further considered.
If spectacles and contact lenses are not desired, then Lasik enhancement may be considered if there is sufficient residual corneal stroma left behind after the first surgery. At the time of enhancement, many patients would consider an adjunctive procedure of collagen cross-linking to minimise the risk of myopia recurrence in future.
ESG
