Number of blind in the world will go up by 3 times by 2050

The number of blind people across the world is set to triple within the next 40 years, says a new report in the respected medical journal The Lancet.

The report says that the number of cases will rise from 36 million to 115 million by 2050, if treatment is not improved by better funding.

The reason behind the numbers is a growing ageing population. Some of the highest rates of blindness and vision impairment are in South Asia and sub-Saharan Africa.

While the percentage of the world's population with visual impairments is actually falling, with more and more people living longer, the number of people with sight problems will soar in the coming decades.

The report is significant because a mild vision impairment can affect a person's life. It reduces their independence, and placed limits on people's educational and economic opportunities.

The study says there is a need for better investment in treatments, such as cataract surgery, and ensuring people have access to appropriate vision-correcting glasses. Health systems in developing countries need to be improved, and more surgeons and nurses need to be trained to deliver sustainable eye health care, says the report.

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