Ontario Cataract Quality Outcome Initiative: appropriateness and prioritization of cataract surgery.

Objective: To explore the utility of the Catquest 9SF visual function (VF) questionnaire along with visual acuity (VA) for determining appropriateness and priority for cataract surgery. To evaluate the feasibility of administering the Catquest-9SF in a clinical setting using web-based electronic data capture and interpretation.

Design: Prospective multicentred interventional observational study.

Diabetic retinopathy screening in a Canadian community pediatric diabetes clinic.

Objective: To evaluate the screening rates for diabetic pediatric patients in a regional center according to the Canadian Diabetes Association guidelines.

Design: Retrospective study.

Participants: The study consisted of 82 patients seen in the pediatric diabetes clinic at Peterborough Regional Health Center.

The incidence of giant cell arteritis in Ontario, Canada.

Objective: The incidence of giant cell arteritis (GCA) is insufficiently documented for Canada, but important to ascertain for public health planning. We estimate the incidence of biopsy-proven GCA (BPGCA) in Kingston, Ontario, and for the province of Ontario.

Method: The number of cases of BPGCA was tabulated from retrospective chart review of all temporal artery biopsies (TABx) in Kingston, Ontario from 2011-15.

Retinopathy and RAAS Activation: Results From the Canadian Study of Longevity in Type 1 Diabetes.

Objective: The importance of renin-angiotensin-aldosterone system (RAAS) activation in retinopathy for long-standing diabetes is not well understood. We determined retinopathy stage and evaluated associations with other vascular complications before and after physiological RAAS activation in adults with long-standing (≥50 years duration) type 1 diabetes.

Research Design And Methods: Participants underwent retinal examination by digital funduscopic photography and optical coherence tomography and were classified as having nonproliferative diabetic retinopathy (NPDR), proliferative diabetic retinopathy (PDR), or no diabetic retinopathy (NDR) with or without diabetic macular edema (DME).

Saccade dynamics in peripheral vs central sixth nerve palsies.

Objective: To investigate differences between peripheral idiopathic and central sixth nerve palsies from brainstem damage by comparing peak velocities and durations of horizontal saccades.

Methods: Fourteen patients with unilateral incomplete sixth nerve palsies caused by idiopathic, presumed ischemic, peripheral damage, 5 with incomplete central (fascicular) palsy caused by brainstem lesions, and 10 controls were studied. Palsies under 1 month in duration were designated as acute and those of longer duration were chronic.

Recovery of peripheral versus central nerves identified by saccadic velocity after abducens neuropathy.

The abducens is the motor nerve with the most substantial course, both within and outside the brain and it innervates only one muscle. Sixth nerve palsy affords an opportunity to compare recovery after central versus peripheral nerve damage by assessing the dynamics of abduction. Horizontal saccade peak velocities and durations in 14 patients with unilateral peripheral sixth nerve palsies (5 acute, 9 chronic) are compared with those in 5 patients with central sixth nerve palsies (2 acute, 3 chronic) and with those in 10 normal subjects.