Welcome to the VirtualLens 3D Demonstration page. The work space below has been populated with two pair of lenses with the same Rx and same lens shape. The materials are different to demonstrate the thickness difference. Click (or touch) and drag the screen below to rotate the lenses to view from any angle. Click the 'Show Thickness Options' checkbox to display an interface that will allow you to check the thickness at any point along the edges by moving the mouse over the lens shape outlines (touch and drag over the shape outlines if using a touch-screen).