Dr. Tien-an A. Yang

Jacque Duncan is an Ophthalmologist in San Francisco, California. Dr. Duncan is highly rated in 26 conditions, according to our data. Her top areas of expertise are Usher Syndrome Type 2A, Usher Syndrome, Retinitis Pigmentosa, Retinopathy Pigmentary Mental Retardation, and Vitrectomy.

Dr. Jay Stewart is an ophthalmologist who specializes in treating disorders of the retina and vitreous (the thick transparent substance that fills the center of the eye). His expertise includes conditions such as age-related macular degeneration, diabetic retinopathy, ocular trauma, retinal detachment, retinal vascular diseases and uveitis (swelling of the uvea, the middle layer of the eye). In his research, Stewart studies diabetic retinopathy, drug delivery to the eye, and the permeability and biomechanics of eye tissues. Stewart earned his medical degree at Harvard Medical School and completed a residency in ophthalmology at UCSF. He completed a fellowship at the Doheny Eye Institute and won the vitreoretinal surgery award from the Ronald G. Michels Fellowship Foundation, which funds outstanding young scholars. Stewart is a member of the American Academy of Ophthalmology, American Society of Retina Specialists and Retina Society. Dr. Stewart is highly rated in 20 conditions, according to our data. His top areas of expertise are Retinal Detachment, Age-Related Macular Degeneration (ARMD), Late-Onset Retinal Degeneration, Vitrectomy, and Trabeculectomy.

Theodore Leng is an Ophthalmologist in Palo Alto, California. Dr. Leng is highly rated in 21 conditions, according to our data. His top areas of expertise are Age-Related Macular Degeneration (ARMD), Late-Onset Retinal Degeneration, Geographic Atrophy, Vitrectomy, and Trabeculectomy.