Any tips on how to prevent a toddler from chewing the lenses? It just takes a second for my son to take off his glasses, put them in his mouth, and leave teeth marks on the lenses. He has been wearing glasses for about a year, with varied success, but this is a new behavior. My wife and I try to redirect this behavior with a chew toy, but he obviously can't always have one in his mouth. Someone suggested that perhaps there is something that can be sprayed on the lenses that doesn't taste good. I did find a product called "apple bitter", but it is made for puppies (so they won't chew things) and so I don't know if that would be appropriate!
My son has Downs syndrome, is non-verbal, and was recently adopted from Eastern Europe, so he's not yet ready to listen to much discussion on the matter!