Left, External photograph of the cornea of a 33-year-old male, patient 1, in family Q, with BCVA of 20/25, central subepithelial crystals, and arcus lipoides. (Photograph has been lightened to increase contrast and allow best visualization of crystal deposition). Right, 8 years later, patient is 43 years old with BCVA of 20/50 with increased central crystalline opacity, midperipheral haze, and arcus lipoides. PTK, which was subsequently performed within the year, did not increase BCVA and patient subsequently underwent PKP.