OMG, seriously?

I have thought about doing that, but thought it would be much more expensive. Where did you buy it?

I have been to multiple optometrists, but it always goes like, the eye measuring machine says my glasses should be one diopter stronger, but my eye sight was still good enough that I do not need a new prescription..

I looked into it and found some for $200. But they had testing glasses (where you insert the lens) with a fixed eye distance (PD). If that is the wrong PD, it is bad

And half the lenses there are plus lenses. I only need minus lenses.

But it seems one can buy testing glasses and individual lenses rather than a set.