Cornea
The Cornea/External Disease/Anterior Segment Service focuses on problems of the ocular surface, including infections of the conjunctiva and cornea, corneal degenerations and other abnormalities of the ocular surface and anterior segment. Corneal transplantation, anterior segment reconstruction, cataract and intraocular lens surgery, refractive corneal surgery and surgery for complicated cataract extraction are performed by this service. Doheny Eye Centers offer IntraLase Technology for refractive surgery.

The Cornea/External Disease/Anterior Segment Service offers comprehensive corneal evaluations, medical diagnostic services and computerized topography, which can often be performed during a single visit. Surgical services, as listed above, are coordinated closely with the referring physician. Some of the available diagnostic services include pachymetry, potential acuity measurement, microbiological studies and assessment of corneal topography using computerized corneal modeling technology.

Some of the more common patient diagnoses referred to this Doheny service include bullous keratopathy, corneal ulcer, corneal scarring, corneal astigmatism and cataracts.

 

David Huang, M.D., Ph.D.
Dr. David Huang is an Associate Professor of Ophthalmology at the University of Southern California and the Director of the Laser Vision Center. Dr. Huang attended Harvard Medical School and obtained a PhD in Medical Enginerreing & Medical Physics. Dr. Huang completed his residency at the University of Southern California / Doheny Eye Institute and Fellowship in Cornea, External Diseases and Refractive Surgery at Emory University. Dr. Huang is board-certified. Dr. Huang is well known for his research and teaching in refractive surgery, laser and imaging technologies. The National Institute of Health (NIH) has awarded him 3 research grants totaling over 7 million dollars. He has produced over 30 scientific articles and book chapters and 8 patented inventions. His best known invention is Optical Coherence Tomography (OCT), now a common technique for imaging and measuring internal eye structures with microscopic precision. Dr. Huang serves on committees and boards of 4 professional societies and has received the Achievement Award from the American Academy of Ophthalmology.

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John A. Irvine, M.D.
Dr. Irvine earned an M.D. from the Keck School of Medicine of the University of Southern California. He completed both his residency and a fellowship in cornea and external diseases at the Massachusetts Eye and Ear Infirmary, Harvard University. Dr. Irvine is the Director of Continuing Medical Education for the Doheny Eye Institute, Associate Medical Director of the Doheny Eye and Tissue Bank, Past-President of the Los Angeles Society of Ophthalmology and a Board Member of the Research Study Club of Los Angeles. Dr. Irvine is also a Professor of Ophthalmology at the USC Keck School of Medicine.

 

 

Ronald E. Smith, M.D.
Dr. Smith earned an M.D. from Johns Hopkins University School of Medicine. He completed his residency at the Wilmer Ophthalmological Institute, Johns Hopkins Hospital, and his fellowship at the Francis I. Proctor Foundation for Research in Ophthalmology, University of California Medical Center at San Francisco. Dr. Smith is Professor and Chairman of the Department of Ophthalmology at the USC Keck School of Medicine, Director of the Doheny Cornea Service, President & CEO of the Doheny EyeCare IPA and Medical Director of the Doheny Eye and Tissue Bank.

 

 

Jonathan Song, M.D.
Dr. Song earned an M.D. from University of California San Francisco. He completed his residency at University of Southern California / Doheny Eye Institute. He also served as chief resident during his residency. He completed two fellowships: a fellowship in pediatric ophthalmology at Children's Hospital Los Angeles and a fellowship in Cornea / Refractive Surgery at Doheny Eye Institute.

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Samuel Yiu, M.D., Ph.D.
Dr. Samuel Yiu received a B.A. in Chemistry, a M.S. in Applied Biometry, and the Ph.D. in Physiology Biophysics from the University of Southern California. His M.D. degree was received from the University of Alberta, Canada. Dr. Yiu completed a residency in ophthalmology at Dalhouise University, Canada and completed a postdoctoral fellowship in Cornea/External Diseases and Refractive Surgery at the Doheny Eye Institute.

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