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Howard Shann-Cherng Ying, M.D., Ph.D.


Appointment Phone


Main Location

The Johns Hopkins Hospital

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

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

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Centers & Institutes


  • Ophthalmology


Johns Hopkins Medicine - Green Spring Station

Appointment Phone: 410-583-2802

10753 Falls Road
Pavilion II
Baltimore, MD 21093 map
Phone: 410-583-2802
Fax: 410-614-0842

The Johns Hopkins Hospital

Appointment Phone: 410-955-3518

600 N. Wolfe Street
Baltimore, MD 21287 map
Phone: 410-502-2367
Fax: 410-614-0842


Ocular Mobility, Ophthalmology, Retina, Medical Diseases, Retina, Surgical Diseases, Strabismus

Research Interests

retinal surgery and ocular motility


Howard S. Ying, M.D., Ph.D., is an assistant professor of ophthalmology at the Wilmer Eye Institute. Dr. Ying specializes in medical and surgical diseases of the retina and complicated adult strabismus after retinal surgery. In addition to his clinical practice, Dr. Ying is actively researching the vexing problem of ocular dysmotility and double vision after retinal surgery. Dr. Ying is board-certified in ophthalmology and is a member of the American Academy of Ophthalmology.

Dr. Ying trained in biomedical engineering at the Whitaker Institute at Johns Hopkins University, earned his M.D. and Ph.D. (neurosciences) degrees at Washington University, completed ophthalmology residency at the Doheny Eye Institute at University of Southern California and completed a medical and surgical retina fellowship at the Wilmer Eye Institute before joining the faculty in 2004.

Dr. Ying has won numerous awards throughout his training, including the Raymond R. Margherio Award for macular research from the Retina Society, AOS-Knapp Fellowship from the Herman Knapp Testimonial Fund and the Heed Fellowship from the Heed Ophthalmic Foundation. more

    Additional Information

  • Education +


    • Washington University School of Medicine / M.D. Ph.D. (1998)


    • University of Southern California / Ophthalmology (2002)


    • American Board of Ophthalmology / Ophthalmology (2003)
  • Research & Publications +

    Selected Publications View all on PubMed

    Selected publications
    H.S. Ying, J. Weishaupt, M. Grabb, L.M.T. Canzoniero, S.L. Sensi, C.T. Sheline, H. Monyer, D.W. Choi. (1997) Sublethal oxygen-glucose deprivation alters hippocampal neuronal AMPA receptor expression and vulnerability to kainate-induced death. Journal of Neuroscience 17(24):9536-9544.
    S.P. Yu, B.J. Gwag, S.L. Sensi, Z.S. Farhangrazi, L.M.T. Canzoniero, H.S. Ying, L.L. Dugan, D.W. Choi. (1997) Enhancement of delayed rectifier current in cortical neurons undergoing apoptosis. Science 278(5335):114-117.
    H.S. Ying and D.W. Choi. (1998) Alterations in glutamate receptor expression in cultured neurons: implications for excitotoxic vulnerability. Ph.D. thesis, Neurosciences Program, Washington University.
    H.S. Ying, F.J. Gottron, and D.W. Choi. (2001) Assays in primary cultures to assess cell viability. In Current Protocols in Neuroscience. J.N. Crawley, C. Gerfen, R. McKay, M. Rogawski, D. Sibley, P. Skolnick Eds. May; Chapter 7: Unit 7.18.
    M.M. Lai, J.C. Lai, W.H. Lee, J.J. Huang, S. Patel, H.S. Ying, M. Melia, J.A. Haller, J.T. Handa. (2005) Comparison of retrobulbar and sub-Tenon''s capsule injection of local anesthetic in vitreoretinal surgery. Ophthalmology 112(4):574-579.
    J.I. Lim, C. Spee, M. Hangai, J. Rocha, H.S. Ying, S. Ryan, D. Hinton. (2005) Neuropilin-1 expression by endothelial cells and retinal pigment epithelial cells in choroidal neovascular membranes. American Journal of Ophthalmology 140(6):1044-1050.
    N.G. Ghazi, C. Dibernardo, H.S. Ying, K. Mori, P. Gehlbach. (2006) Optical coherence tomography of enucleated human eye specimens with histological correlation: evaluation of the origin of the outer red line. American Journal of Ophthalmology141(4):719-726.
    H.S. Ying, J.A. Haller, and J.D. Gottsch. (2007) Combined phacoemulsification, intraocular lens implantation, and pars plana vitrectomy for eyes with coexisting cataract and vitreoretinal pathology. In Vitreoretinal Surgical Techniques, 2nd ed. Eds. Peyman, Meffert, and Conway. Informa Healthcare: London.
    Shan, X, Tian, J, Ying, H, Quaia, C, Optican, L, Walker, M, Tamargo, R., Zee, D.S. (2007) Acute SOP in monkeys: I. Changes in Static Eye Alignment. Invest Ophthalmol Vis Sci. 48(6):2602-2611.
    H.S. Ying and P. Gehlbach. (2007) Intraocular foreign body: nonmagnetic, chemically inert. In Current Ocular Therapy, 6th ed. Eds. Roy, Fraunfelder, and Fraunfelder. In press.
    Ying, H.S., Darbandi, B., Shan, X., Barker, P., Miller, N.R., Zee, D.S. (2008) Quantitative eye movement recordings in a patient with bilateral superior oblique palsy after Harada-Ito procedure. Strabismus 15(3):137-147.
    H.S. Ying and A.P. Schachat. (2008) Choroidal and Retinal Metastasis. In Atlas of Posterior Segment Pathology, Eds Hwang, Kaiser, and Traboulsi. In press.
    R.S. Adyanthaya, H.S. Ying, J.T. Handa, and M.X. Repka. (2008) Macular retinal detachment in Hallerman-Streiff syndrome. Archives of Ophthalmology 126(2):271-273.
    H.S. Ying, K. Fackelmann, A. Messoudi, X. Tang, J.A. Bttner-Ennever, and A. K. E. Horn. (2008) Neuronal signaling expression profiles of motoneurons supplying multiply- or singly-innervated extraocular muscle fibers in monkey. Progress in Brain Research 171:13-16.
    P.A. Campochiaro, G. Hafiz, S.M. Shah, Q.D. Nguyen, H. Ying, D.V. Do, E. Quinlan, I. Zimmer-Galler, J.A. Haller, S. Solomon, J.U. Sung, Y. Hadi, K.A. Janjua, N. Jawed, D.F. Choy and J.R. Arron. (2008) Ranibizumab for Macular Edema Due to Retinal Vein Occlusions: Implication of VEGF as a Critical Stimulator. Molecular Therapy 16(4):791-799. Epub 2008 Feb 5.
    H.S. Ying, R.A. Symonds, K. Louie, J.T. Handa, S.D. Solomon, P.L. Gehlbach. (2008) Accidental Nd:YAG Laser-induced Choroidal Neovascularization. In press, Lasers in Surgery and Medicine 40(4):240-242.
    Quaia C, Shan X, Tian J, Ying H, Optican LM, Walker M, Tamargo R, Zee DS. (2008) Acute superior oblique palsy in the monkey: effects of viewing conditions on ocular alignment and modelling of the ocular motor plant. Prog Brain Res. 171:47-52.
    Walker MF, Tian J, Shan X, Tamargo RJ, Ying H, Zee DS. (2008) Lesions of the Cerebellar Nodulus and Uvula Impair Downward Pursuit. J Neurophysiol. 100(4):1813-1823. Epub Jul 23, 2008.
    Tian J, Shan X, Ying HS, Walker MF, Tamargo RJ, Zee DS. (2008) The effect of acute superior oblique palsy on vertical pursuit in monkeys. Invest Ophthalmol Vis Sci. 49(9): 3927-3932. Epub May 9, 2008.
    Irsch K, Ramey NA, Kurz A, Guyton DL, Ying H. (2008) Video-Based Head Movement Compensation for Novel Haploscopic Eye Tracking Apparatus. Invest Ophthalmol Vis Sci. 2008 Oct 31. [Epub ahead of print]
  • Academic Affiliations & Courses +
  • Activities & Honors +


    • Alpha Epsilon Delta honor society , Johns Hopkins University, 1988
    • Tau Beta Pi honor society , Johns Hopkins University, 1988
    • Honors , G.W.C. Whiting School of Engineering Department of Biomedical Engineering, 1990
    • Medical Scientist Training Program Fellow, National Institutes of Health, 1990 - 1998
    • Spencer T. and Ann W. Olin Medical Scientist Fellow , Washington University Division of Biomedical Sciences, 1997
    • ARVO Travel Fellowship, National Institutes of Health, 2000
    • Best Resident Research Award Doheny-USC Professional Association, Association for Research in Vision and Ophthalmology , 2000
    • Best Resident Research Award Doheny-USC Professional Association, Association for Research in Vision and Ophthalmology , 2001
    • Best Resident Research Award Doheny-USC Professional Association, Association for Research in Vision and Ophthalmology , 2002
    • Thomas Heed Fellow , Heed Ophthalmic Foundation, 2002
    • Knapp Fellow Herman Knapp Testimonial Fund, American Ophthalmologic Society, 2003
    • A. Edward Maumenee Scholar , Wilmer Eye Institute, 2004
    • Raymond R. Margherio Award , The Retina Society, 2004
    • Wilmer Special Resident Teaching Award , Wilmer Residents Association, 2004
    • Jean Buttner-Ennever Symposium Travel Award , The Imperial College, London, 2007
    • Michaelson Club Travel Award , The Michaelson Club, 2007
    • Wilmer Most Peer-reviewed Publications Award by an Assistant Professor, Wilmer Eye Institute, 2009


    • American Medical Association Political Action Committee, 1990 - 1998
      Student Member
    • American Society of Cataract and Refractive Surgery, 1999 - 2002
      Member in Training
    • California Academy of Ophthalmology, 2000 - 2002
      Board of Directors
    • American Academy of Ophthalmology, 2004
      present Active Fellow
    • Association for Research in Vision and Ophthalmology, 2004
      present Member
    • American College of Surgeons, 2005
      present Associate Fellow
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