Rose K is the single most frequently prescribed lens design for the correction of keratoconus and irregular cornea conditions in the world. Currently sold in 88 countries, the Rose K family of lenses consists of 5 designs, including Rose K2 (keratoconus), PG (post graft), IC (irregular cornea), NC (nipple cone) and XL (semi-scleral). Five lens designs to fit most corneal shapes… One simple systematic approach to fitting.