If you suffer from double vision, a pair of eyeglasses with prism lenses can help keep your eyes focused, improving your vision tremendously.
After selecting a frame, you can add a prism prescription to your lenses by clicking ‘Show more options’ in the lens usage section, checking the ‘add prism’ box and entering your prism prescription numbers.
What are prism glasses?
Double vision is caused by light entering the eyes at the wrong angle, which sends two identical images to the brain. Eyeglasses with prism correcting lenses eliminate double vision.
How do They Work?
A prism is a shape with flat, transparent surfaces that bends light. Some people suffer from double vision caused by their eyes not focusing on the same location. Adding a prism shape to eyeglass lenses bends light travelling into the eye in such a way that it aligns what each eye is seeing, eliminating the double image interpreted by the brain.
If you need prism correction, you will have a separate set of numbers on your prescription that indicate the vertical and/or horizontal angle needed to correct double vision.
Best Fitting Frames for Prism Lenses
Depending on your needs, one lens of your prism glasses may be slightly thicker than the other. You might like to choose a thicker frame style to cover the edges of the lens more completely. If this doesn’t bother you, you aren’t restricted in the style of frame you choose at all, so take your pick.