Most people wear prescription computer glasses for vision correction as well as anti-reflective radiation. But if you have perfect vision, you can choose the non prescription computer glasses to protect you from the computer radiation. As more and more office workers are being tortured by computer radiation at all times that their eyesight is getting worse and worse, alongside with eye dry, itch and fatigue. So a pair of computer glasses is much necessary .
Do you mean you have perfect vision. I just see people use 20/20to express perfect vision and never see 25-25 vision. If you have perfect vision, and spend lots of time in front of computer everyday, you can try non prescription computer glasses(also called Plano computer glasses). Of course, if you have poor vision, you shall take a detail eye exam and buy prescription computer glasses according to your eye power.