The document discusses Mini-Scleral Design (MSD) contact lenses and the Rose K2 contact lens system for fitting keratoconic eyes. MSD lenses vault the cornea and rest on the sclera, creating a fluid-filled environment to treat corneal and anterior segment conditions. Rose K2 lenses use different edge lifts and peripheral curves to closely fit the steepened central cornea and flattened periphery of keratoconic eyes, improving comfort and vision. The fitting process involves measuring keratometry, selecting the initial base curve and edge lift, and adjusting for central touch, peripheral fit, and lens centration/mobility.