
Expert Retinal Care You Can Trust
We specialize in the diagnosis and treatment of complex retinal conditions, delivering personalized care backed by cutting-edge technology and a commitment to your vision health.


John J. Khadem, MD, MPH
Dr. Khadem is a board-certified ophthalmologist specializing in retinal and vitreous diseases and surgery. He founded Associated Retina Specialists in 2002 with a focus on compassionate, patient-centered care. He is a member of the American Academy of Ophthalmology, the Association for Research in Vision and Ophthalmology, and the American Society of Retina Specialists.
Credentials:
- Duke University
- MD, Columbia University
- Residency, University of Chicago Hospitals
- Clinical training, Harvard Medical School & Massachusetts Eye and Ear
- Former Clinical Instructor, Harvard Medical School & Schepens Eye Institute

Cristiana Pieroni, MD
Dr. Pieroni is a board-certified ophthalmologist with expertise in retinal and vitreous disease and surgery. She is an active researcher and has published several articles on retinal conditions.
Her surgical interests include retinal detachment repair, epiretinal membrane peeling, macular hole repair, and lens fragment removal.
She is a member of the American Academy of Ophthalmology and the American Society of Retina Specialists.
Credentials:
- MD, UMDNJ/Robert Wood Johnson Medical School
- Residency, Tufts University/New England Eye Center
- Fellowship in Vitreoretinal Surgery, Cornell University/NewYork-Presbyterian Hospital

Samuel Wong, MD
A graduate of Harvard College and Medical School, Dr. Wong took his post graduate training at Manhattan Eye and Ear Hospital and Columbia’s Harkness Eye Institute. Board certified in Ophthalmology, Dr. Wong has a versatile practice in medical retina, glaucoma lasers, and comprehensive ophthalmology. His humanitarian work has brought him to Tibet, China, and Amman Jordan to restore sight in refugees. In a parallel career, Maestro Wong has conducted over 100 orchestras world-wide, including the New York Philharmonic and the Royal Philharmonic in London.















A TEAM OF EXPERTS: Experience You Can Trust

