Sure, you can get the prescription filled for single vision, but why did you get bifocals in the first place? So you could read without taking your glasses off; at least, that is why got mine. It got to the point that I couldn’t read with my glasses on and, if I took off, I had to hold the paper less than 6 inches from my face. Not that much of a problem with a book, but in meetings, not really the best image to send out. When it got so bad that I couldn’t read the computer screen, I had to do something.
My ophthalmologist recommended progressive lenses instead of the traditional bifocals. That might help. They are not ideal, but they do help. I do remember when I first got them, I hated them. I couldn’t read signs on the highway and I couldn’t read. And the headaches. I went back to the ophthalmologist and complained. They examined me and my glasses and said everything was correct. Then, they asked how long I had been wearing them and if I was still using my old glasses. I had been wearing them about a week and, yes, I was still using my old glasses to drive, so I could read the signs. I was told to get rid of my old glasses, that I needed to get “used to” the new glasses and eventually my brain would figure out how to use them.
They were right. In less than another week, things were much improved, and now I wouldn’t give them up. I have a pair (several, actually, gotta love Zenni) of single vision in addition to my dual vision pairs, since watching TV from bed doesn’t work with the dual vision as I am looking through the lower portion of the lens, the near-vision part, so I can’t see very well. Unfortunately, I have them with the same style of frames, so sometimes I get the wrong ones. Once, I got all the way to the car before I noticed that I couldn’t read the instruments as well as I used to and figured out that I had the wrong pair.
So, take them back to where you got them, since it is possible they got the prescription wrong. If it checks out, give them some time. You may want to try progressive lenses, if you haven’t. They aren’t for everyone and they aren’t perfect, but they work for me.
excavating (for a mind)