A systematic literature review of the evidence on benchmarks for cataract surgery waiting time

This review offered critical input to the work of Canadian federal-provincial-territorial Deputy Ministers of Health on establishing evidence-based benchmarks for waiting times (WTs) for cataract surgery. The study purpose was to synthesize the evidence regarding the relations among patient characteristics, WT, and health outcomes for patients on waiting lists for cataract surgery.

A systematic literature review was conducted using the Cochrane methodology.

Seventeen studies were considered. The studies varied in their quality, study design, sample characteristics, and outcome measures. Because of the heterogeneity in studies, a qualitative analysis was used. Key findings were: individuals with cataracts are at an increased risk of falls, hip fractures, and motor vehicle crashes, the absence of pre-existing eye disease, and better baseline visual acuity and visual function are associated with better outcomes, and average WTs of 6-12 months are associated with a decline in visual acuity in patients while waiting.

Although the evidence does not indicate a precise benchmark, it does support timely access to surgery for individuals undergoing cataract surgery. In December 2005, health ministers set a goal to provide cataract surgery within 16 weeks for patients at high risk.