Since you have perfect vision, you can buy plano eyeglasses ( also called non prescription glasses, clear lenses eyeglasses) or wear fashion glasses frames only. And you can find many fashion glasses for looks online. If you want to get cheap fashion glasses, eyebuydirect, zennioptical.com, framesdirect and Firmoo are good online glasses shops where provide cheap, good quality yet fashionable eyeglasses.
People with perfect vision should get non prescription glasses if they just want glasses for fashion purpose. Online optical stores offer cheap fashion eyeglasses with different styles. So just search them online with key words, and then many online optical stores offering cheap fashion glasses will be listed. You can compare them to find out the most reliable one to get your fashion eyeglasses.