Prism Glasses
Shop prism glasses online with prescription prism lenses designed to help with double vision and eye alignment. Choose from stylish, comfortable frames, then enter your prism values and base directions from your prescription during lens selection — Viewner will customize your prism lenses based on the information you provide.
Free shipping on Orders Over $79 · 30-Day Return Policy
Free shipping on all orders over $79 · 30-Day Return Policy
Related Categories
Not sure which lens type you need? Browse our other lens collections above, or head to the full eyeglasses range — every pair ships free over $79, with your prism prescription entered at lens selection.
Prism Glasses FAQs
What are prism glasses, and what are they used for?
Prism glasses use prism lenses, which bend light to help both eyes work together. They're designed to help with double vision and eye alignment, and they're prescribed by an eye care professional.
What do vertical, horizontal, and base direction mean on a prism prescription?
Prism is measured in prism diopters (Δ). Vertical prism moves the image up or down, horizontal prism moves it side to side, and the base direction (up, down, in, or out) shows which way the thick edge of the prism points. Our How to Read an Eyeglass Prescription guide shows where prism appears on your prescription, including the BU, BD, BI, and BO base codes.
Can I add prism to my regular prescription?
Yes — with Viewner's prism glasses, prism correction is added on top of your usual prescription lenses, including progressive, bifocal, and reading prescriptions. Choose a frame, then add your prism values at lens selection.
What prism information do I need to order?
You'll need the vertical and horizontal prism values for each eye, along with the base direction for each, as written on your prescription. Vertical and horizontal prism are each available from 0.50 up to 5.00, in 0.50 steps. Not sure how ordering works? Our How to Buy Glasses Online guide walks you through each step.
Do I need a prescription from an eye doctor to order prism glasses?
Yes. Viewner makes your prism lenses from the prescription information you provide, so the prism values need to come from your eye care professional rather than being chosen yourself.
Can I wear prism glasses all day?
Prism glasses should be worn the way your eye care professional directs, so follow the wearing schedule on your prescription. If you're unsure, ask them before you order.