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System Performance

Interpretation Note

Wait times have been impacted by reduced service delivery during the COVID-19 pandemic. Under the Chief Medical Officer of Health’s Directive #2 and Memorandum, from March 19 to May 26, 2020, health service providers and health service organizations including hospitals were directed to reduce elective surgeries and other non-emergency clinical activities to preserve capacity during the pandemic. To learn more about the impact on surgery and diagnostic imaging volumes, please click here.

To see the impact on volume for a specific procedure, please scroll down to the last section of this page to generate a graph for volume.


This is how long patients waited from deciding with the specialist or surgeon to proceed with ophthalmic (eye) surgery, to having the surgery. Wait times are calculated after each patient has had their surgery.


Provincial × Surgery

Patients with emergency conditions (Priority 1) are seen immediately. They are not included in wait times data shown here. The wait time is displayed for the larger health organization to which a hospital belongs. Even if a procedure is not offered at a selected hospital, data will appear for the larger health organization.

Learn about priority levels and target times.

March 2020
All Patients Combined:

87%of patients were treated within the target time

Priority 4 Patients:

Patients who should be treated within a target time of 182 days

Waited on average


89% of patients were treated within target time
Priority 3 Patients:

Patients who should be treated within a target time of 84 days

Waited on average


68% of patients were treated within target time
Priority 2 Patients:

Patients who should be treated within a target time of 42 days

Waited on average


83% of patients were treated within target time


Provincial × Surgery

Compare results across hospitals for the priority level with the most patients:

For this surgery, most patients are categorized as Priority 4. Hospitals with no data available will not appear in the comparison table. Learn why some data is not available.

Hospital name Average (Days)
Ontario 89
Ross Memorial Hospital 16
Quinte Healthcare Corporation 30
Northumberland Hills Hospital 34
St. Joseph's Health Care System Hamilton 37
Winchester District Memorial Hospital 38
North Bay Regional Health Centre 47
Norfolk General Hospital 52
North York General Hospital 53
Muskoka Algonquin Healthcare 53
Bluewater Health 55
Niagara Health System 57
Peterborough Regional Health Centre 60
Orillia Soldiers' Memorial Hospital 60
Stevenson Memorial Hospital 64
Chatham-Kent Health Alliance 64
The Scarborough Hospital 65
Lakeridge Health 66
St. Joseph's Health Care London 74
Thunder Bay Regional Health Sciences Centre 75
Grey Bruce Health Services 75
William Osler Health System 76
Alexandra Hospital 77
Toronto East Health Network 77
Southlake Regional Health Centre 81
The Ottawa Hospital 81
Brant Community Healthcare System 82
Cornwall Community Hospital 85
Timmins And District General Hospital 89
Health Sciences North 91
Strathroy Middlesex General Hospital 94
Halton Healthcare Services Corporation 95
Clinton Public Hospital 95
Joseph Brant Hospital 97
Headwaters Health Care Centre 98
Cambridge Memorial Hospital 101
Georgian Bay General Hospital 107
St. Joseph's Health Centre Toronto 109
Kingston Health Sciences Centre 111
Sault Area Hospital 112
Windsor Regional Hospital 123
Kensington Eye Institute 126
University Health Network 137
Trillium Health Partners 151
Royal Victoria Regional Health Centre 160
Woodstock General Hospital 162
Hopital Montfort 171
Pembroke Regional Hospital Inc. 187
Sunnybrook Health Sciences Centre 188
St. Mary's General Hospital 198
Brockville General Hospital 244

Percentage of patients whose surgery was completed within the provincial target wait time, in Ontario, 201903 to 202003
201903 88.0
201904 86.0
201905 86.0
201906 86.0
201907 86.0
201908 85.0
201909 83.0
201910 83.0
201911 86.0
201912 86.0
202001 86.0
202002 87.0
202003 87.0


Data source: Wait Time Information System™ (WTIS™), Cancer Care Ontario. For more information, please visit the Indicator Library for the technical description of average time, volume, and percentage within target.

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