Cataracts: A Leading Cause of Vision Loss
More than 2.5 million Canadians have cataracts. They are painless, develop within the existing lenses in your eyes, and are usually detected during routine eye exams.
Source: Canadian national institute for the blind

Just for You - Seniors
In partnership with provincial and territorial governments, Health Canada provides national leadership to develop health policy, enforce health regulations, promote disease prevention and enhance healthy living for all Canadians.

Vision Care Info - Sheet for Seniors
Eyes are a source of delight, but they are also a key to safety and well-being. This Info-Sheet describes some of the vision changes seniors may experience with age. Most of these can be corrected with eye glasses or surgery. Certain conditions are best controlled in the early stages while others can lead to a permanent loss of eyesight. This is why it's important to visit your eye specialist regularly.
Source: Public Health Agency of Canada