253 million people are blind or vision impaired in the world

As per data, there are around 253 million people blind or vision impaired in the world.

Out of these 217 million people have moderate or severe distance vision impairment, while 36 million people are blind.

• It has also been found through data analysis that the most common causes of visual impairment are refractive errors, cataracts and glaucoma

• The most common causes of blindness are cataracts, glaucoma and age-related macular degeneration

Most of the cases of blindness are treatable but due to lack of awareness, people do not get the treatment or surgeries and remain blind. This is particularly true in case of developing countries like India.

India has the largest number of people with vision impairments, population wise.

The problems of vision are divided into 4 categories : Normal vision, moderate vision impairment, severe vision impairment and blindness.

Although most of the vision impairments occur in people above the age of 50 years, however, 19 million children are reportedly vision impaired due to various eye defects.

The data shows a positive trend over the years and it has been found that various factors such as socioeconomic development, better public health services, increased availability of eye care services and awareness of the general population are now causing a decrease in vision impairment worldwide.

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