Thin Tec prescription lens upgrade.

This is required for certain prescription lenses.

This a thinner, optically brilliant lens for prescriptions. It takes weight and thickness out of higher prescriptions.

We will let you know if this needs to be added to your prescription.

$50 for both lenses. Picture for illustrative purposes. Not a visual of the lenses.

The difference that Thin Tec makes:

• PLUS 4.00 : lighter by 46%, thinner by 43%

• MINUS 4.00 : lighter by 31%, thinner by 43%