Dr. Charles Merker: Dr. Charles Merker is affiliated with Manhattan Eye and Ear, Lenox Hill and the St. Lukes-Roosevelt Hospital Center and specializes in Pediatric Ophthalmology. He actively contributes to the medical community, speaking and assisting ophthalmology residents in training. In his 25 years of practice, he has performed thousands of surgeries for various eye conditions. Most of his adult clients have been loyal patients for years.