If you're have problems with your vision, you're right to doubt the accuracy of the prescription. Can you get the optometrist (or better yet, his/her associate) to recheck it? If you do get it filled, make sure the shop offers a 30-day money back guarantee.
Actually, I have trouble seeing the projection screen in class. Also, I had trouble reading the menu at a local coffee shop. This is why I'm not sure. It also causes me to doubt the accuracy of this prescription.
This prescription only benefits your optometrist. I would not prescribe such a minor prescription unless you were having a problem.
Dr. O.
I doubt that this Rx will make a noticeable difference to you.