The base curve of a pair of glasses refers to the curvature of the glasses’ lens. There are three criteria to consider when choosing your lens’ base curve: aesthetics, fit, and optics. You need all three of these points to have a good pair of glasses. Select a lens curve that meets all three criteria.
Frame manufacturers, such as Valley, measure lens curves by deviation from the 'base curve'. Figuring out your base curve is the job of your optician. Once you know your base curve, Valley Eyewear can help you find a happy medium between what will provide you with optimum optics, aesthetics, and fit.
All of our non-prescription eyewear, from classic sunglasses to blue-light blocking classes, have their base curve defined by their style. This will be shown on the eyewear’s product page. The base curve of any prescription lenses, be they sunglasses or glasses, depend on the power of your prescription as well as the style that you are opting for.