I need a new one. I have gone off my current one after they tried to tell me they know better than the eye hospital doctors and disagree with what the doctors have told me. I have Drusen and the optician at my practice whom I have never seen (my own is on holiday) told me I have macular degeneration and that I should be seen regularly at the eye hospital for check ups. I said if they felt the need to keep seeing me they would have told me to go back.