33 results match your criteria: "The John and Liz Tory Eye Centre[Affiliation]"

Introduction: Diabetic macular edema (DME) and neovascular age-related macular degeneration (nAMD) require frequent anti-vascular endothelial growth factor (VEGF) treatment and monitoring visits. We aimed to understand the burden of treatment on caregivers.

Methods: This multinational, noninterventional study used a cross-sectional survey of adult patients with DME or nAMD treated with anti-VEGF injections in the USA, Canada, France, Italy, Spain, and the UK.

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Article Synopsis
  • This case report discusses a pre-term infant diagnosed with severe bilateral retinal disease, highlighting the challenges in managing aggressive retinopathy of prematurity (ROP).
  • The infant underwent various assessments, including genetic testing that revealed a novel mutation in the LRP5 gene, which is linked to retinal issues.
  • The findings emphasize the need for careful evaluation of preterm infants with retinal problems, as genetic profiles can alter the understanding and treatment of these conditions, particularly distinguishing between ROP and familial exudative vitreoretinopathy (FEVR).
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Introduction: Understanding patient perspectives of treatment may improve adherence and outcomes. This study explored real-world patient experiences with anti-vascular endothelial growth factor (anti-VEGF) treatment for diabetic macular edema (DME) and neovascular age-related macular degeneration (nAMD).

Methods: This multinational, non-interventional, quantitative, cross-sectional, observational survey assessed treatment barriers/burden, patient-reported visual functioning, and treatment satisfaction in DME and nAMD patients in the USA, the UK, Canada, France, Italy, and Spain.

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Assessment of Zonular Integrity in Phakic Eyes Following Pars Plana Vitrectomy Using Ultrasound Biomicroscopy: A Prospective Paired Eye Comparative Study.

Am J Ophthalmol

September 2024

From the Department of Ophthalmology and Vision Sciences, University of Toronto (M.A., K.T.E., T.F., H.C., C.B., P.J.K.), Toronto, Ontario, Canada; The John and Liz Tory Eye Centre, Sunnybrook Health Sciences Centre (K.T.E., H.C., C.B., F.M., P.J.K.), Toronto, Ontario, Canada; The Kensington Eye Institute (P.J.K.), Toronto, Ontario, Canada. Electronic address:

Purpose: To assess zonular integrity in phakic patients post vitrectomy using ultrasound biomicroscopy (UBM).

Design: Prospective, comparative, nonrandomized, double-masked, paired eye study.

Methods: We used ultrasound biomicroscopy (UBM) to evaluate phakic patients with a history of unilateral pars-plana vitrectomy.

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Article Synopsis
  • The AZURE study was a 76-week clinical trial comparing two treatment regimens of aflibercept in patients with neovascular age-related macular degeneration, evaluating a flexible treat-and-extend approach versus a fixed dosing schedule.
  • Patients aged 51 and older who had been on aflibercept for at least a year were randomly assigned to receive either a treat-and-extend regimen or fixed dosing every 8 weeks, with changes monitored based on visual acuity and anatomical results.
  • Results showed that both regimens produced similar changes in best-corrected visual acuity, with high rates of vision maintenance, and the treat-and-extend approach allowed for longer intervals between treatments for some patients without any new safety concerns.
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Spontaneous Resolution of Macular Edema from a Congenital Retinal Macrovessel.

Ophthalmol Retina

May 2023

Department of Ophthalmology & Vision Sciences, University of Toronto, Toronto, Ontario, Canada; The Hospital for Sick Children, Toronto, Ontario, Canada; The John and Liz Tory Eye Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.

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En Face OCT in Diagnosis of Persistent Subretinal Fluid and Outer Retinal Folds after Rhegmatogenous Retinal Detachment Repair.

Ophthalmol Retina

June 2023

Department of Ophthalmology and Vision Sciences, University of Toronto, Canada; Department of Ophthalmology, St. Michael's Hospital, Unity Health Toronto, Canada; Kensington Vision and Research Centre, University of Toronto, Canada; Keenan Research Centre for Biomedical Science, Toronto, Canada; Li Ka Shing Knowledge Institute, Toronto, Canada. Electronic address:

Purpose: To evaluate the role of en face OCT as a diagnostic tool for the detection of persistent subretinal fluid (PSRF) and outer retinal folds (ORFs) after successful rhegmatogenous retinal detachment (RRD) repair.

Design: Observational post hoc analysis of 2 prospective surgical trials.

Participants: All patients with gradable (signal strength ≥ 5 and no segmentation error) 6 × 6-mm macular cube scans obtained using spectral-domain OCT (Carl Zeiss Meditec) between 1 and 2 months after surgery were included in this study.

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Purpose: To assess the incidence of persistent subfoveal fluid (PSFF) in pneumatic retinopexy (PnR) versus pars plana vitrectomy (PPV) following rhegmatogenous retinal detachment (RRD) repair and to determine its association with functional outcomes.

Methods: Posthoc analysis of the PIVOT randomised trial. Eyes with gradable en face and cross-sectional spectral-domain optical coherence tomography (SD-OCT) scans at 1-2 months postoperatively were included.

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Longitudinal Assessment of Ellipsoid Zone Recovery Using En Face Optical Coherence Tomography After Retinal Detachment Repair.

Am J Ophthalmol

April 2022

Department of Ophthalmology and Vision Sciences (N.F., A.B., A.R.B., D.T.W., R.P.K., P.J.K., R.H.M.), University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology (N.F., A.B., A.R.B., D.T.W., R.H.M.), St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Kensington Vision and Research Centre (R.P.K., P.J.K., R.H.M.), University of Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science (R.J.H., R.H.M.)/Li Ka Shing Knowledge Institute, Toronto, Ontario, Canada. Electronic address:

Purpose: Suboptimal functional outcomes after rhegmatogenous retinal detachment (RRD) repair may be related to photoreceptor abnormalities, including alterations of the ellipsoid zone (EZ) that may not be apparent on cross-sectional optical coherence tomography (OCT). This study assessed EZ recovery using en face OCT after RRD repair and its association with visual acuity.

Design: Post hoc analysis of a randomized controlled trial.

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Outer Retinal Folds after Pars Plana Vitrectomy vs. Pneumatic Retinopexy for Retinal Detachment Repair: Post hoc analysis from PIVOT.

Ophthalmol Retina

March 2022

Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada; Department of Ophthalmology, St. Michael's Hospital, Unity Health Toronto, Toronto, Canada; Kensington Vision and Research Centre, University of Toronto, Toronto, Canada; Keenan Research Centre for Biomedical Science/Li Ka Shing Knowledge Institute, Toronto, Canada. Electronic address:

Purpose: To assess the incidence of postoperative outer retinal folds (ORFs) after pars plana vitrectomy (PPV) vs. pneumatic retinopexy (PnR) for rhegmatogenous retinal detachment (RRD) repair and to determine the association of ORFs with functional outcomes at 1 year.

Design: Randomized controlled trial.

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Pneumatic retinopexy as a treatment for rhegmatogenous retinal detachment in pediatric patients meeting PIVOT criteria.

Can J Ophthalmol

December 2022

Department of Ophthalmology and Vision Sciences; University of Toronto, Faculty of Medicine, The John and Liz Tory Eye Centre, Sunnybrook Health Sciences Centre, Toronto, Ont.. Electronic address:

Objective: To report the results of pneumatic retinopexy (PnR) as the initial treatment in pediatric patients with rhegmatogenous retinal detachment (RRD) fulfilling The Pneumatic Retinopexy versus Vitrectomy for the Management of Primary Rhegmatogenous Retinal Detachment Outcomes Randomized Trial (PIVOT) criteria.

Design: A retrospective multicentre study.

Participants: Pediatric patients who underwent outpatient PnR as the initial treatment for RRD from January 2006 to July 2019 who met PIVOT criteria.

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Importance: Pneumatic retinopexy (PnR) is associated with superior visual acuity and reduced vertical metamorphopsia compared with pars plana vitrectomy (PPV) for primary rhegmatogenous retinal detachment (RRD). It is important to determine postoperative photoreceptor integrity with both surgical techniques.

Objective: To compare photoreceptor integrity on spectral domain-optical coherence tomography (SD-OCT) between PnR and PPV at 12 months postoperatively.

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Letter to the Editor regarding Chronopoulos and colleagues "Pneumatic retinopexy, a critical re-appraisal".

Surv Ophthalmol

March 2022

Department of Ophthalmology and Vision Sciences, University of Toronto, Canada; Kensington Vision and Research Centre, University of Toronto, Canada; Keenan Research Centre for Biomedical Science/ Li Ka Shing Knowledge Institute, Toronto, Canada; Department of Ophthalmology, St. Michael's Hospital, Unity Health Toronto, Canada.

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Purpose: To compare the efficacy of topical nepafenac 0.1% versus intravitreal triamcinolone acetonide (IVTA) at the conclusion of vitrectomy surgery versus no adjuvant therapy (NAT) in improving macular morphology post-operatively in patients undergoing vitrectomy for epiretinal membrane (ERM), as measured by optical coherence tomography (OCT) imaging and best-corrected visual acuity (BCVA).

Methods: Design: Prospective randomized clinical trial Setting: Multi-centre 80 patients scheduled to undergo vitrectomy surgery for idiopathic ERM were randomized to receive either IVTA (4 mg/0.

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Purpose: To evaluate the correlation between foveal changes in the detached retina in macula-off rhegmatogenous retinal detachments (RRD) and visual acuity outcome following repair.

Design: Retrospective, consecutive, observational case series.

Methods: Consecutive patients presenting with macula-off RRD between July 15 and September 15, 2017, underwent SD-OCT imaging and their medical records were reviewed.

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Importance: Although rhegmatogenous retinal detachment (RRD) repair techniques have high anatomical reattachment rates, there may be differences in various aspects of postoperative vision-related quality of life (VRQoL).

Objective: To explore the differences in various aspects of VRQoL between pneumatic retinopexy (PnR) and pars plana vitrectomy (PPV) following RRD repair.

Design, Setting, And Participants: Post hoc exploratory analysis of the the Pneumatic Retinopexy vs Vitrectomy for the Management of Primary Rhegmatogenous Retinal Detachment Outcomes randomized clinical trial conducted between August 2012 and May 2017 at St Michael's Hospital, Toronto, Ontario, Canada.

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Purpose: To evaluate a new approach of sequential pneumatic retinopexies for the management of inferior rhegmatogenous retinal detachments (RD) with inferior breaks.

Methods: Multicenter retrospective consecutive case series of inferior RDs caused by retinal breaks located within the inferior 4 clock hours treated with sequential pneumatic retinopexies, 24 to 48 hours apart. A total of 26 patients with inferior RDs secondary to one or more breaks between the 4 o'clock and 8 o'clock meridians were included from September 2007 to February 2012.

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Importance: Although the Canadian Treat-and-Extend Analysis Trial With Ranibizumab in Patients With Neovascular Age-Related Macular Disease (CANTREAT) reported herein and the Treat and Extend study provided data to show noninferiority of treat-and-extend (T&E) at 12 months, to date there are few data on 24-month T&E trials compared with monthly dosing.

Objective: To compare the efficacy of ranibizumab using a T&E regimen to monthly dosing in treatment-naive patients with neovascular age-related macular degeneration (nAMD) after 24 months.

Design, Setting, And Participants: A randomized, open-label, multicenter, noninferiority intention-to-treat trial with a margin of -5 letters in best-corrected visual acuity (BCVA) from baseline to 12 months between groups was conducted at 27 treatment centers in Canada.

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Visual outcomes after treatment in pediatric patients with Coats' disease.

Can J Ophthalmol

December 2019

Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ont.; Department of Ophthalmology and Vision Sciences, The Hospital for Sick Children, Toronto, Ont.; Department of Ophthalmology, The University of Hong Kong, Hong Kong.. Electronic address:

Objective: To report visual outcomes for children with Coats' disease after treatment.

Design: Retrospective case series.

Participants: Pediatric patients with Coats' disease treated between 2000 and 2018 at a tertiary care pediatric hospital.

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: To study the effectiveness and safety of the intravitreal dexamethasone implant 0.7 mg (Ozurdex®) in vitrectomy surgery for epiretinal membrane.: This is a prospective, multicenter, pilot study.

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Aqueous Humor Cytokines and Long-Term Response to Anti-Vascular Endothelial Growth Factor Therapy in Diabetic Macular Edema.

Am J Ophthalmol

October 2019

Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology, Unity Health Toronto, St. Michael's Hospital, Toronto, Ontario, Canada. Electronic address:

Purpose: To determine the association of aqueous humor cytokine concentrations with long-term treatment response to anti-vascular endothelial growth factor (VEGF) agents in diabetic macular edema (DME).

Design: Retrospective case series.

Methods: Pooled data of aqueous humor cytokine concentrations collected at baseline and 2-month follow-up (2 injections) for treatment-naïve eyes with center-involving DME previously enrolled in a prospective study were reviewed.

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Purpose: To compare the efficacy of ranibizumab using a treat-and-extend (T&E) regimen with monthly dosing in treatment-naive patients with neovascular age-related macular degeneration (nAMD).

Design: Prospective, randomized, open-label, multicenter, noninferiority, postauthorization study.

Participants: Treatment-naive patients with choroidal neovascularization secondary to AMD.

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