Vision loss number is expected to double in the next few decades

Most people experience some decline in vision as they age. It becomes more difficult to read small print, to get around in dim lighting, or to tell the difference between dark blue and black, for example. Such changes in vision are a normal part of aging. However, more serious changes to eyesight also occur as one ages. People of any age who have a stroke, traumatic brain injury, or a brain tumor may experience many physical changes, including vision loss. The loss may be temporary or permanent.

Source: Wikimedia (Public Domain)