Precision Cornea Centre

06/26/2025

Precision Cornea Centre was proud to contribute to the Canadian Ophthalmological Society (COS) Annual Meeting this year, with our team members presenting on complex surgical cases, ergonomics, and sustainability, as well as instructing surgical skills wet labs. Thank you to the planning committee for another excellent meeting, and looking forward to COS 2026 in Montreal!

03/05/2025

Congratulations to our current Research Fellow, Dr. Tushar Dave, for matching to the Ophthalmology residency program at McGill!! Tushar, your preceptors and Precision family are so proud and we are excited to witness the bright journey you have ahead of you!!

02/13/2025

Preop photo: Corneal melt and perforation in the setting of severe rosacea-related meibomian gland dysfunction. The resulting intermittent leak was refractory to treatment with multiple applications of cyanoacrylate glue and required surgical correction with transplanted corneal tissue. Concurrent medical therapy included topical antibiotics and anti-inflammatories (cyclosporine and judicious use of steroids), as well as oral doxycycline (anti-collagenolytic) and Vitamin C (which supports collagen synthesis). Workup for systemic inflammatory contributors was negative, thus systemic immunosuppression was not indicated.

Postop photo: Post-tectonic penetrating keratoplasty, awaiting wound healing before proceeding with suture removal and subsequent cataract surgery.

12/25/2024

Wishing everyone a joyous holiday season, from our Precision family to yours!

10/23/2024

Another conference wrap up! Last week, Dr. Sabeti and Dr. Baig engaged in the latest and greatest in the field ophthalmology at the American Association of Ophthalmology Annual Meeting!

08/20/2024

Introducing the newest member of the Precision Team! Dr. Wei Sim, a highly accomplished professional, is delighted to announce the launch of his cataract and glaucoma subspecialty practice at the Precision Glaucoma Centre in September 2024. He earned his medical degree from Queen’s University. He completed his residency at the University of Ottawa, where he served as chief resident and was recognized for his teaching and research contributions. His passion for providing compassionate care to glaucoma patients led him to pursue advanced training in traditional and micro-invasive surgical techniques, culminating in a fellowship at Queen’s University. He holds double-board certification as a Fellow of the Royal College of Surgeons of Canada and a Diplomate of the American Board of Ophthalmology. In September 2024, he will also join the University of Ottawa Faculty of Medicine as an Assistant Professor in Ophthalmology.

Dr. Wei Sim will offer his services in managing cataracts and medical and surgical glaucoma. He is now accepting referrals for these services.

06/27/2024

06/06/2024

What an amazing this past weekend in Toronto! Members of the Precision Cornea Centre and Herzig Eye Institute Ottawa had a great time presenting on various topics from cornea, cataract and ICL technology, and glaucoma surgery! A big thank you to the planning committee and to for hosting an exceptional conference. Looking forward to COS 2025 in Vancouver!

05/09/2024

Ocular surface squamous neoplasia (OSSN) refers to a spectrum of conditions involving neoplastic changes of the squamous epithelium of the conjunctiva and cornea. These lesions are often mistaken for a pingueculum or pterygium or noncancerous metaplasia, therefore any special features - such as feeder vessels and/or a papillomatous, gelatinous, or leukoplakic appearance - or the presence of particular risk factors - including older age, male gender, Caucasian background, heavy sun exposure, cigarette smoking, vitamin A deficiency, and exposure to petrol products - should lead to suspicion for OSSN.

ASOCT can aid with diagnosis, with OSSN demonstrating an abrupt 90-degree transition from normal to abnormal epithelium that is thickened and hyperreflective. Furthermore, ASOCT can help with monitoring for subclinical disease after the lesion has resolved clinically, in order to avoid premature termination of treatment with chemotherapy. UBM can help with determining presence or extent of deeper invasion.

Treatment options most commonly involve topical chemotherapy (IFN-α2β, 5-FU, MMC) +/- surgical excision.

Case: This patient underwent excisional biopsy using a “no-touch” technique with 4mm margins on the conjunctiva + alcohol-assisted superficial keratectomy with 2mm margins on the cornea + cryotherapy using a double freeze-thaw technique + human amniotic membrane overlay, with adjuvant topical chemotherapy using 5-FU.

05/02/2024

Precision Cornea Centre and Precision Glaucoma Centre shines the spotlight on its remarkable staff during its 2nd annual Staff Appreciation day, recognizing their tireless efforts and relentless pursuit of excellence.

04/08/2024

Don’t forget to wear ISO certified glasses during the solar eclipse! Remember, sunglasses are not protective enough!