I switched to Francis Clark's treatment in Hatboro because of insurance concerns. In my eye, he found a very large mole that is now being watched at Wills Eye Hospital in Center Philadelphia. The Wills Eye expert claims that because this has been going on for a while, my previous local ophthalmologists have all missed it.  Dr. Clark takes considerable care and time during your visit to offer you the best eye examination he is able to. He is without a doubt the best!