nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpqutqq43c4dm4t8wck0emuggxyev7j42vxflsdktm9ftmur4nemxxsc435kv (nprofile…35kv) Have you tried any of the providers like Zenni? Decent glasses from them aren't quite as cheap as the lowest-cost ones they tend to advertise, but they're not $450 expensive.
Many optometrists have gotten used to this option. If yours is making it difficult to get your prescription you can probably find someone else who understands that their expertise is in providing an accurate prescription, and that the act of making glasses has been somewhat commoditized now.