When we receive your prescription, we will check to see if you require super thin high index lenses. If you select this option and we determine that your SPH (sphere) value is greater than +4 or less than -4, we will fit super thin high index lenses to your frames. These lenses are thinner, lighter and flatter than our standard lenses and include the same great anti-reflective and anti-scratch coatings. For strong prescriptions, super thin high index lenses are more comfortable and avoid the "coke-bottle" effect.
 
We will automatically charge an additional $50 for this choice. If, when we receive your prescription, we determine that your SPH (sphere) value is +4 or less or -4 or more and super thin high index lenses are not required, we will fit standard lenses to your frames and refund the additional $50 charge