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Prem S. Subramanian, M.D., Ph.D.

Prem Sagar Subramanian, M.D., Ph.D.
Director, Thyroid Eye Disease Center
Specializes In: Adolescents (12-18 years), Adults (18+ years), Children (1-11 years), Infants (up to 1 year)

Male  | Languages: English, German, Spanish, Tamil

Appointment Phone


Main Location

Johns Hopkins Wilmer Eye Institute

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Director, Thyroid Eye Disease Center

Centers & Institutes


  • Surgery at Suburban Hospital


Johns Hopkins Wilmer Eye Institute

Appointment Phone: 410-955-8679

600 N. Wolfe Street
Wilmer Eye Institute Suite 233
Baltimore, MD 21287 map
Phone: 410-955-8679
Fax: 410-614-9240

Johns Hopkins Wilmer Eye Institute - Bethesda

Appointment Phone: 240-482-1100

7315 Wisconsin Avenue
West Tower, Suite 610
Bethesda, MD 20814 map
Phone: 240-482-1100
Fax: 240-482-1105

Contact for Research Inquiries

Phone: 410-502-3213


Cranial Nerve Palsies, Double Vision, Intracranial Hypertension, Multiple Sclerosis, Ophthalmology, Optic Nerve Disease, Orbital Tumors, Pseudotumor Cerebri, Skull Base Tumors, Strabismus, Thyroid Eye Disease, Venous Sinus Stenosis

Research Interests

Optic Nerve Regeneration; Traumatic brain injury; Effects of diplopia on quality of life


Prem S. Subramanian, M.D., Ph.D., is an associate professor of ophthalmology, neurology and neurosurgery at the Wilmer Eye Institute and director of the Thyroid Eye Disease Center at Wilmer's Bethesda office. He specializes in neuro-ophthalmology, with special interest in the treatment of thyroid eye disease, disorders that cause double vision in adults and orbital and skull base tumors. His clinical practice includes patients with all types of disorders of the optic nerve and orbit. Dr. Subramanian is the principal investigator in clinical trials on treatments for thyroid eye disease and idiopathic intracranial hypertension and is conducting research on how to treat vision problems in patients with traumatic brain injury. He performs surgery for tumors of the orbit, thyroid exophthalmos, and strabismus.

Dr. Subramanian received his M.D. and Ph.D. (in molecular and human genetics) degrees from Baylor College of Medicine. He completed an internship and ophthalmology residency at Walter Reed Army Medical Center and then completed a fellowship in neuro-ophthalmology at the Wilmer Eye Institute. Dr. Subramanian served as director of neuro-ophthalmology at Walter Reed for four years before joining the Wilmer faculty in 2007. more

Featured Video

Meet Dr. Subramanian

    Additional Information

  • Education +


    • American Board of Ophthalmology / Ophthalmology (2002)

    Additional Training

    Baylor College of Medicine ( Houston TX ) (1997)

    Residency, Walter Reed Army Medical Center/Ophthalmology ( Washington DC ) (2001)

    Fellowship, Johns Hopkins University School of Medicine/Neuro - ophthalmology ( Baltimore MD ) (2003)

  • Research & Publications +

    Clinical Trial Keywords: Pseudotumor cerebri (idiopathic intracranial hypertension), Optic neuritis, NAION

  • Academic Affiliations & Courses +
  • Activities & Honors +


    • American Academy of Ophthalmology
    • North American Neuro-ophthalmology Society
    • Sigma Xi
  • Videos & Media +
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