The instrument shown in these photos is an aberrometer and the technology is known as “aberrometry”. This is a new technology that allows us to design a scleral lens with enhanced optics that can eliminate vision distortions that many patients experience with their eyeglasses and contact lenses. There are millions of patients around the world who have lost quality vision due to refractive surgery, keratoconus, corneal transplant surgery and corneal disease. who suffer vision defects known as “higher order aberratrions”. or “HOA’s”.