My wife had a very serious eye infection. The ER doctor completely missed diagnosed the real problem. The next morning, Sunday, I called Affiliated Eye Surgeons who we have used for over 30 years. Within a short time the doctor on call, Dr. Koster called me back and based on the description of her eye, he personally met us at the office within 45 minutes! He continued to see her every day for the next week first thing before his appointments. Dr. Koster saved my wife's eyesight for which we are ever so grateful. Steve & Therese