If you plan on financing your LASIK surgery or taking out a personal loan, the better your credit score is, the better your interest rate will be. There is not a specific score needed to qualify for financing for LASIK but it is best to make sure your credit score is good if you are thinking of pursuing financial assistance. Discover Vision offers financing through CareCredit, subject to credit approval, to make the upfront cost of LASIK surgery more affordable through monthly payments.