Ophthalmology and Visual Sciences

  • Sohan Singh Hayreh, MD, MS, PhD, FRCS, FRCOphth, DSc

    Specialty: Ocular and Optic Nerve Vascular Disorders

    Professor Emeritus of Ophthalmology and Director Ocular Vascular Clinic


    • Pre-medical, Panjab University, India, 1946
    • MB, BS (MD in U.S.), Panjab University, India, 1951

    Post Graduate Education

    • Master of Surgery, Panjab University, India, 1959
    • PhD (Ophthalmology), London University, 1965
    • FRCS (Ophthalmology), Royal College Surgeons of Edinburgh, 1969
    • FRCS (Ophthalmology), Royal College Surgeons of England, 1969
    • DSc (Medicine), London University,1987


    • Master of Surgery
    • FRCS Edinburgh & England

    Professional Affiliations (Present or Past)

    • Fellow, Royal College of Surgeons of England
    • Fellow, Royal College of Surgeons of Edinburgh
    • Fellow, Royal College of Ophthalmologists
    • Fellow, American Academy of Ophthalmology
    • Oxford Ophthalmological Society
    • French Ophthalmological Society
    • European Association for Vision and Eye Research
    • British Micro-Circulation Society
    • Association for Research in Vision and Ophthalmology
    • Gonin Club
    • International Glaucoma Society of the International Congress of Ophthalmology
    • Imaging and Perimetry Society (formerly International Perimetric Society)
    • American Medical Association
    • American Association for Advancement of Science
    • Society for Experimental Biology and Medicine
    • Macula Society
    • Retina Society
    • Society for Clinical Trials
    • International Society for Ocular Fluorophotometry
    • International Society for Eye Research
    • American Glaucoma Society
    • Pan American Ophthalmological Society
    • North American Neuro-ophthalmological Society

    Research Interest

    • Ocular circulation in health and disease
    • Retinal and Choroidal disorders
    • Fluorescein angiography
    • Fundus changes in malignant arterial hypertension
    • Ocular neovascularization
    • Optic disc and optic nerve in health and disease
    • Glaucoma
    • Ophthalmic manifestations of rheumatologic diseases
    • Nocturnal arterial hypotension

    Recent Research Projects

    • Clinical and experimental studies of ocular vascular occlusive disorders
    • Ocular manifestations of arterial hypertension/hypotension and atherosclerosis
    • Anterior ischemic optic neuropathy
    • Glaucoma
    • Giant cell arteritis

    Scholarly Publications in PubMed