Glasses vs. Contacts: Should Glasses Have a Higher Prescription Than Contacts?
Glasses usually need a higher prescription than contact lenses. This difference happens because glasses are 12 millimeters from the eye, while contact lenses sit on the eye’s surface. As a result, contact lenses provide slightly less correction for nearsightedness, especially when the prescription strength exceeds 4 diopters (4D). Glasses use a slightly higher prescription because … Read more