10 Fatos sobre Cegueira e Deficiência Visual

10 Facts about Blindness and Visual impairment
Supported by WHO:WHO | World Health Organization
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A group of older women wearing eye patches after surgery
In 2010, the number of people visually impaired was estimated to be 285 million, of whom 39 million were blind. This represents a reduction in the number of people previously estimated as being visually impaired in 2004.

A mirror reflects a man trying on glasses
 An estimated 120 million are visually impaired because of uncorrected refractive errors (near-sightedness, far-sightedness or astigmatism). Almost all of them could have normal vision restored with eyeglasses, contact lenses or refractive surgery.

A boy leading an older blind man with a stick, Africa
90% of visually impaired people live in low- and middle-income countries.

Portrait of a woman with cataracts
An estimated 51% of all blindness (19.7 million) is due to age-related cataract, the leading cause of blindness, while 43% of all visual impairment is due to uncorrected refractive errors.

Portrait of an older woman with a patch over her right eye
Cataract surgery and correction of refractive errors are among the most cost-effective health interventions.

A man whose eye is being tested with reflective light
Age-related causes of visual impairment and blindness are increasing, as is blindness due to uncontrolled diabetes.

View of a light box being used for a vision test
Globally, up to 80% of visual impairment and blindness in adults is preventable or treatable.

Portrait of a woman with trachoma, United Republic of Tanzania
Infectious causes of blindness (onchocerciasis and blinding trachoma) are being progressively eliminated from the world with effective and innovative public-private partnerships.

A boy whose left eye has corneal opacity
Around 1.4 million children are blind. The major causes of blindness in children include cataract, retinopathy of prematurity (ROP), and Vitamin A deficiency. Approximately half of all childhood blindness can be avoided or treated. A global programme in 30 countries, through a partnership between WHO and Lions Clubs International, is providing eye care services to children.

A girl holds a 'tumbling E' and covers one eye
For decades, WHO has been working with its Member States and its international partners to eliminate the main causes of avoidable blindness, by providing technical assistance, monitoring and coordination.

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