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Meet Our Doctors
John G. Ladas, MD, PhD, FACS
Pamela P. Cheung, MD
Gregory J. Ladas, MD, FACS
Kathleen Z. Ladas, MD
William D. O'Donnell, MD
Stacy J. Bang, M.D.
Cataract Surgery
Cornea
Dry Eye
LASIK / Refractive Surgery
Glaucoma
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Dr. Cheung is a Board Certified/Fellowship Trained Surgeon.  She earned her MD from the Columbia University College of Physicians and Surgeons.  She completed her Ophthalmology Fellowship training in cornea and refractive surgery at the Johns Hopkins/Wilmer Eye Institute, ranked the number one eye hospital in the East by U.S. News and World Report.  Before moving to the DC area she was on the faculty at the Edward S. Harkness Eye Institute as an Assistnat Professor at Columbia University.

Dr. Cheung has expertise and advanced training in anterior segment surgery including:

  • Cataract Surgery
  • Multi-focal/Accommodating Implants
  • Refractive Surgery (LASIK/PRK)
  • Corneal Transplantation
  • Glaucoma Surgery
  • Corneal Diseases
  • Dry Eye
  • Ocular Allergy and Infections


  • Fellowship in Refractive and Corneal Surgery, Johns Hopkins/Wilmer Eye Institute
  • Residency in Ophthalmology, Columbia University College of Physicians and Surgeons
  • MD, Columbia University College of Physicians and Surgeons
  • BS, Yale University


  • American Academy of Ophthalmology
  • American Society of Cataract and Refractive Surgery
  • Diplomate, American Board of Ophthalmology
  • International Society of Refractive Surgery


  • Philip Knapp Memorial Teaching Award, Edward S. Harkness Eye Institute, Columbia University


  • Johns Hopkins Hospital/Wilmer Eye Institute
  • Silver Spring Ophthalmology Surgical Center
  • Surgery Center of Maryland at Leisure World
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