You should not use Windex or other cleaner containing Ammonia to clean it cuz Ammonia can have chemical reaction with the anti-scratch coating. Not use paper towel to rub it as it may scratch the coating. When you don't use your transition glasses, you should put them in its case. To clean the lens of your transition glasses, you can buy special sprays from your optician and use microfibre cloths to clean the lens.
You should store your transition glasses in a case when not in use. Never put your transition glasses in your car for a long time, which would damage the transition glasses lenses. When you clean your transition glasses, you should wet the lenses first. Apply a mild, non-moisturizing soap to clean the lens and rinse them under running water. The good way to dry the transition lenses is to pat them rather than rub them.