Single Vision High Index 1.80 Glass lenses are for the strongest prescriptions and are only available for eyeglasses with full frames, no drill mount or semi-rimless frames, please. We recommend 1.80 glass lenses for frames with small lenses to reduce the weight of your glasses, because we've found that overall eyeglass weight plays a big role in overall comfort.

In general, high index glass lenses perform better than high index plastic lenses and the 1.80 Index glass is the highest index lens material that we offer. And when you order High Index 1.80 Glass lenses from us, we automatically add a free anti-reflective coating for you, free of charge, because we love you and because high index glasses tend to have issues with glare if a coating is not added.