Getting darker glass for photosensitivity is possible but far from instant. Form MV-80W demands your registration, a New York medical provider’s signature, and a copy of that provider’s license. DMV’s Medical Review Unit quotes four-to-six weeks to decide, and the exemption tags both the patient and one specific vehicle. Swap cars or lease returns and you start over from scratch. Even after approval, the DMV prints the required VLT on the certificate, so your installer must match that number precisely and file a copy in your glove box.