hi, if you are talking about spectacle glasses as opposed drinking glasses, you might be covered with whom you bought them from. As got some specs a few years ago from 'fielmann' and they had replacement service for 12 months I believe or was it longer.

Do know they were fab service and nothing we got in the UK could beat them on quality. Unfortunately I trod on them when just over 3 years limit and did not have them on my UK insurance.