MUHC Patient Education Office

American Academy of Ophthalmology

Canadian Association of Optometrists

Cleveland Clinic (United States)

HealthLink BC

Mayo Clinic (United States)

Medline Plus (United States)

Merck Manual — Consumer Version (United States)

National Eye Institute (United States)

National Health Service (United Kingdom)

NIH Medline Plus Magazine (United States)

Related Topics

You may also consult our resources in French or our list of general health sites.

Page Last Updated: June 4, 2018
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