ALSO READ | Notice flashes or black spots in your vision? Here’s what you need to know Globally, at least 2.2 billion people have a vision impairment or blindness, of whom at least 1 billion have a vision impairment that could have been prevented or is yet to be addressed. “Eye conditions and vision impairment are widespread, and far too often they still go untreated,” said Dr Tedros Adhanom Ghebreyesus, WHO Director-General while presenting the report. US $14.3 billion is needed to address the backlog of one billion people living with vision impairment or blindness due to short and far sightedness, and cataracts. With age, the possibilities of eyesight worsening increase, but WHO warned that these should not be seen as irreparable old age problems.