Sohail Hasan, MD, PhD

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Retina care is the ultimate form of ophthalmology. I like the elegance of the microsurgery, the ever-advancing technologies, and the ability to make a big difference for my patients.

Sohail J. Hasan, M.D., Ph.D., F.R.C.S.C., is an acclaimed vitreoretinal specialist who has achieved distinction for his surgical expertise as well as his innovative clinical research – both here in the United States and in his native Canada. Dr. Hasan is an Assistant Professor of Ophthalmology at Rush University Medical Center in Chicago. He has been with Illinois Retina Associates since 2005.

Dr. Hasan’s interest in vision and the eye began early on. As a seventh-grader, he won first place at the Los Angeles County Science Fair with his project “The Electric Eye,” which he built himself. In fact, his passion for building and using his hands eventually led him to pursue a career in retina surgery. Dr. Hasan earned his undergraduate degree in psychology from Dalhousie University in Nova Scotia, where he also pursued vision research. Dr. Hasan went on to complete a Ph.D. in neuroscience at the University of British Columbia. He then received an offer to continue his pioneering research in spinal cord regeneration as a post-doctoral fellow at the University of Zurich in Switzerland. While there, he discovered that he enjoyed working with patients too, so when he returned to Canada, he earned a medical degree with honors from the University of Toronto. Dr. Hasan completed his ophthalmology residency at the University of Toronto and his retina fellowship at Rush University Medical Center. He is certified by the American Board of Ophthalmology, the American College of Surgeons and the Royal College of Physicians and Surgeons of Canada.

Throughout his career, Dr. Hasan has been dedicated to clinical research. He has been involved in a number of major clinical trials, including as principal investigator of the National Eye Institute’s CATT study.

Dr. Hasan is also a busy writer and lecturer. He has authored or co-authored numerous articles and abstracts in leading academic specialty journals, and has written chapters for two ophthalmology textbooks. He is regularly invited to lecture to his peers and to future ophthalmologists and retina specialists. Dr. Hasan is a member of several professional societies and organizations , including the American Academy of Ophthalmology, the American Society of Retina Specialists and the American Medical Association. He is also the recipient of numerous awards and honors such as the Dr. Michael Shea Award for Outstanding Contribution as Senior Resident, Department of Ophthalmology and Vision Sciences, Saint Michael’s Hospital, University of Toronto; the Dr. Sigmund Vaile Cataract Surgery Award, Department of Ophthalmology and Vision Sciences, Mount Sinai Hospital, University of Toronto; and Chief Resident, Department of Ophthalmology, University of Toronto. Dr. Hasan is on staff at several Chicago-area hospitals and sees patients at Illinois Retina’s Orland Park and Flossmoor  office locations.

When he’s not seeing patients, Dr. Hasan and his wife, who is an endocrinologist, enjoy spending time with their daughter and traveling the globe. He is a certified scuba diver and an avid hiker who climbed the Swiss Alps while he studied in Switzerland.

Clinical Trials/Research Studies

  • Principal investigator, Comparison of Age-Related Macular Degeneration Treatments Trials (CATT Study)
  • Investigator, Diabetic Macular Edema Vitrectomy Study
  • Investigator, Extent of Retinopexy in Primary Vitrectomy for Pseudophakic Retinal Detachment

Scientific Journals

  • Retina
  • Canadian Journal of Ophthalmology
  • Online Clinical Communications for Ophthalmologists

Societies and Organizations

  • American Academy of Ophthalmology
  • American Society of Retina Specialists
  • American Medical Association
  • Illinois State Medical Society
  • Chicago Ophthalmological Society
  • Chicago Medical Society
  • Canadian Ophthalmological Society
  • Royal College of Physicians and Surgeons of Canada
  • Canadian Medical Association
  • Ontario Medical Association
  • Medical Council of Canada


Retinal Specialist – Irwin Retina Center/ Ingalls Hospital
Retinal Specialist – Department of Ophthalmology/ Rush Medical College


Ophthalmology – University of Toronto


University of Toronto – Affiliated Hospitals

Medical School

M.D. (with honors) – University of Toronto


B.Sc. – Dalhousie University

Professional Affiliations

  • American Medical Association
  • American Academy of Ophthalmology
  • American Society of Retinal Specialists
  • Fellow of the Royal College of Surgeons of Canada