At least 2.2 billion people are blind or visually impaired. Here’s why.
Worldwide, at least 2.2 billion people are visually impaired, and over 1 billion are forced to live with preventable or treatable conditions, simply because they cannot get the care they need. Rapid population growth, ageing and lifestyle changes are set to swell global demand for eye-care in the coming years, according to a new report published by WHO.