I presume you bought them from a business. It sounds like the glasses are not fit for purposes - you can ask for a refund or a replacement.
To summarise your rights, if you purchase from a business then you have rights under the Consumer Rights Act 2015, which states that the glasses have to be:
· of satisfactory quality in that it must not be faulty or damaged when received
· as described in that the glasses must match any description given at the time of purchase
· fit for purpose in that it should be fit for the purpose intended
If the glasses do not meet the above then you will be able to enforce your rights and sue for your money if the business refuses to give you the money back. The claim would not be against the manufacturer as they will only be responsible under their warranty which came with the glasses.
There is no protection against fair wear and tear, misuse or accidental damage or if you change your mind and no longer want the goods.
The rights against the seller are:
1. Reject the glasses and request a refund which must be done within 30 days of purchase or delivery.
2. Repair or replacement and this can be done within the first 30 days or after, if that deadline has passed and a rejection is no longer possible. If a repair is not possible or has failed, the glasses can still be rejected for a refund. If the repair would put you are considerable inconvenience - e.g. taking several weeks, or meaning you have to travel a long distance to them, then you can demand a refund. They are only allowed one chance at the repair - if that fails, you are due a refund.
You need to contact the dealer and advise them of which option you want to go through with. If they refuse then I would advise that you report them to Trading Standards (https://www.nationaltradingstandards.uk/contact/) and commence legal proceedings via the money claim online site (www.moneyclaim.gov.uk) for your money back.
Before you do this however you should send them a 14 day letter before action to warn them of your intentions, to allow them to avoid litigation and resolve this dispute. I attach a template letter for you to use which will hopefully resolve the dispute.