Yes, it is. A medical certificate from your endocrinologist is required which attests to the degree of the disease, stability of hormonal levels and lack of endocrinological contraindications to the surgery. You need to present the certificate during the preliminary qualifying examination. On the basis of the information contained in the certificate and the results of the examination the ophthalmic surgeon will take a decision as to whether it is possible to perform the laser vision correction procedure and which correction method will be the most suitable in your case.