About

Dr. Dermot Brian O’Brien was a respected Ophthalmologist who practiced at OCC Eyecare, 1880 Sismet Road, Mississauga ON L4W 1W9. Known for his decades of service in medical and surgical eye care, he was recognized for his precision and dedication to patients across the Greater Toronto Area. Patients who were under his care are encouraged to share their experiences and write a review to help others understand the impact of his work in ophthalmology.

Special interest

His medical interests included cataract surgery, glaucoma management, diabetic retinopathy, and comprehensive ophthalmology. He was also focused on preventive eye care and vision preservation, ensuring patients received tailored solutions for both routine and complex conditions.

Education and training

Dr. O’Brien graduated from the National University of Ireland in 1970, completed residency training in Ophthalmology, and was certified by the Royal College of Physicians and Surgeons of Canada in 1978. He practiced independently in Ontario from 1986 until his passing in 2020.

Practice address

  • 1880 Sismet Road, Mississauga ON L4W 1W9

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1 review about Dr Dermot O’Brien

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Wren S.
January 31, 2025
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Punctuality - Yes
Detail-oriented - Yes
Professionalism - Yes
Polite and caring - Yes
Discrimination - No
Quality medical care - Yes
Professional team - Yes
Recommend - Yes
I find the page useful - Yes

Dr. O’Brien is the kind of ophthalmologist who makes you feel like your eyeballs just got a personal concierge. I came in with vision so sketchy I thought I was starring in a blurry indie film, and he brought the clarity like he was adjusting the focus on a vintage camera. Super chill, explained everything like he was narrating a mystery novel, and didn’t make me feel rushed or confused. Mississauga, you’ve got a gem—my eyes are now living in 4K and loving it.

5.0 rating

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Frequently Asked Questions

He specialized in cataract surgery and glaucoma management, providing advanced care for vision preservation.

He earned his medical degree from the National University of Ireland in 1970.

Yes, he was certified in Ophthalmology by the Royal College of Physicians and Surgeons of Canada in 1978.

He practiced independently in Ontario from 1986 until 2020, serving patients for more than three decades.

Yes, patients are encouraged to write reviews to honor his legacy and share the impact of his work.

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