Upgrade the Transformer single panel viewer for custom eyeglass prescriptions with the HD Diopter Lens Kit. The upgrade can be made easily by opening the bottom hatch on the goggles and swapping out the lenses; this kit comes with a lens at 1.5x, to change the prescription to -4, and another lens at 1.0x to change the prescription to -6.

Note that the lens upgrade kit only works with the Transformer Single Panel Viewer.