How many people in the world have blindness?
The esmated number of people visually impaired in the world is 285 million, 39 million blind and 246 million having low vision; 65 % of people visually impaired and 82% of all blind are 50 years and older (Table 2).
How many people are blind in the world in 2020?
By 2020, among the global population who are blind (38·5 million [13·2 million to 70·9 million]), the number of patients blind because of cataract is anticipated to rise to 13·4 million (3·3 million to 31·6 million), because of uncorrected refractive error to 8·0 million (2·5 million to 16·3 million), and because of …
What percentage of the population is completely blind?
Looking at data from 188 countries, the researchers concluded that the prevalence of blindness—the number of blind per population group—decreased from 0.75 percent in 1990 to 0.48 percent in 2015. The rate of moderate to severe visual impairment declined from 3.83 percent to 2.9 per cent over the same time.
How many people are affected by blindness each year?
As of 2012, 4.2 million Americans aged 40 years and older suffer from uncorrectable vision impairment, out of which 1.02 million who are blind; this number is predicted to more than double by 2050 to 8.96 million due to the increasing epidemics of diabetes and other chronic diseases and our rapidly aging U.S. …
How many people in the world are blind?
Here is a short list with 5 facts about the blind and living with blindness. There are currently more than 285 million visually impaired people in the world, a number that is expected to triple in the next 30 years.
Which is the leading cause of blindness in the world?
Globally, at least 2.2 billion people have a near or distance vision impairment. In at least 1 billion – or almost half – of these cases, vision impairment could have been prevented or has yet to be addressed. The leading causes of vision impairment and blindness are uncorrected refractive errors and cataracts.
What was the population of blindness in 2002?
Taking into account the changes in world population over the past 12 years, the extent of blindness and visual impairment in 2002 appears to be lower than was projected – 37 million instead of the projected 52 million.
How many people in the world have vision impairment?
In at least 1 billion – or almost half – of these cases, vision impairment could have been prevented or has yet to be addressed.
What percentage of people are blind?
Vision impairment can range from mild to severe. Worldwide, between 300 million-400 million people are visually impaired due to various causes. Of this group, approximately 50 million people are totally blind. Approximately 80% of blindness occurs in people over 50 years of age.
How many people go blind each year?
Every year 50,000 Americans go blind, most from treatable or preventable eye diseases such as diabetic retinopathy and macular degeneration.
How do the blind see the world?
Legally Blind: A person may be able to see large objects and people, but they are out of focus. A legally blind person may see colors or see in focus at a certain distance (e.g., be able to count fingers in front of the face). In other cases, color acuity may be lost or all vision is hazy.
What are some things that help the blind?
Try a gift that engages other senses. Many blind people enjoy music and audio books. You can also try things like a braille label maker or a braille watch (assuming the blind person doesn’t already have them). You can also offer food, such as a fruit basket or chocolate, if you know their tastes.