What does plano mean in refering to contact lenses?

Question

What does plano mean in refering to contact lenses?

Answer 1

it means that there is no prescription in the contact lenses....most people that wear plano contacts are wearing the colored contacts just for the purpose of changing their eye color, however there are times when a clear plano lens is used to see if the patient can tolerate wearing the lens

Answer 2

pla·no   –adjective.... pertaining to eyeglasses that do not contain a curvature for correcting vision defects: plano sunglasses.

Answer 3

This means non prescriptive contact lenses.