Reading gles vs. corrective gles?

I have great vision -- almost 20/20 eyesight. However, I have a hard time reading and writing. Not because it's blurry, but because I always hunch over and bring my face terribly close to the pages. I can read it from far away if I have to, but I have a tendency to bring it really close because the writing looks so small. Would reading gles help? If so, I don't want to get off the shelf gles because my ears a bit crooked and they probably wouldn't fit well. Would an optometrist prescribe reading gles that makes the writing bigger if I have almost perfect vision?