About Cataracts, Dropless Cataract Surgery, Patrick Janson, OD
Richard Erdey, MD has used an intraoperative keratometer for over twenty years to adjust the shape of the cornea to correct astigmatism during cataract surgery and cornea transplantation. Now, Dr. Erdey and his associates, Drs. Searcy and Kaswinkel are using a recently refined intraoperative keratometer, the Mastel Ring Light to improve visual results.
See Richard A. Erdey, MD speak about the use of the Mastel Ring Light to his Ophthalmology colleagues at the ASCRS 2012 national meeting in Chicago: https://youtu.be/9DAO-LhPDvs
This device contains three rings of individual L.E.D.s and a central fixation target.