Dr. Portney has been involved in the ophthalmic industry for 30+ years serving also on the ISO and ANSI standards committee and is a fellow of the America Academy of Optometry. Val’s expertise is in the area of vision science and physiological optic. Val is the inventor and project leader of the first multifocal IOL approved by the FDA as well as many other devices for optical inspection and medical optical device for vision correction. Dr. Portney holds more that 70 patents and has published 19 scientific papers.