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Evidence to Improve Care

Minimally Invasive Glaucoma Surgery

Draft Recommendation

  • Health Quality Ontario, under the guidance of the Ontario Health Technology Advisory Committee, recommends against publicly funding minimally invasive glaucoma surgery

Read the draft recommendation report

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Glaucoma is a condition that develops when the eye’s drainage system does not work properly. Pressure in the eye builds, causing progressive damage to the optic nerve. This can lead to vision loss or irreversible blindness.

Medication (eye drops) and laser therapy can reduce pressure in the eye for people with mild glaucoma. But those with advanced glaucoma may require an invasive treatment called filtration surgery. A newer, less invasive glaucoma treatment is available called minimally invasive glaucoma surgery (MIGS).

Health Quality Ontario looked at the budget impact of publicly funding MIGS for adults with glaucoma, as well as at the experiences, preferences, and values of adults with glaucoma. This work complements a health technology assessment conducted in collaboration with the Canadian Agency for Drugs and Technologies in Health, which looked at the clinical effectiveness, safety, cost-effectiveness, patient perspectives and experiences, ethical issues, and implementation issues regarding MIGS for adults with glaucoma.

Read the full Health Technology Assessment report for more information.

Minimally Invasive Glaucoma Surgery: A Budget Impact Analysis and Evaluation of Patients’ Experiences, Preferences, and Values (PDF)
April 2019

Related Resources

Optimal Use of Minimally Invasive Glaucoma Surgery: A Health Technology Assessment (PDF)
January 2019

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About Health Quality Ontario

Health Quality Ontario is the provincial lead on the quality of health care. We help nurses, doctors and other health care professionals working hard on the frontlines be more effective in what they do—by providing objective advice and data, and by supporting them and government in improving health care for the people of Ontario.

We focus on making health care more effective, efficient and affordable through a legislative mandate of:

  • Reporting to the public, organizations, government and health care providers on how the health system is performing,

  • Finding the best evidence of what works, and

  • Translating this evidence into clinical standards; recommendations to health care professionals and funders; and tools that health care providers can easily put into practice to make improvements.

For more information about Health Quality Ontario, visit


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