How many blind people are there in the world




















This is likely to be a result of socio-economic development, targeted public health programmes, and greater access to eye-health services, researchers said. However, with most vision impairment being a result of ageing, as the population continues to grow and age, the number of people affected has increased globally.

Their numbers rose from In addition, the study projections suggest that prevalence rates could see an upturn by to 0. It also predicts further increases in the number of cases by if treatment is not improved—with almost million cases of blindness and million people with moderate to severe vision impairment.

Never miss a story! Stay connected and informed with Mint. Computer Science researchers at Queen Mary University will use the psychological findings from these tests to develop new computer software applications that aim to develop new software - supporting people who are visually impaired in their work and leisure activities. The new technology will be tested at the University of Bath for functionality and usability to gauge its impact on the ability of blind people to collaborate with sighted people.

The project brings the disciplines of psychology, computer science and engineering together in new ways that aim to influence the individual fields, but ultimately allow for a bright future for those individuals who are becoming visually impaired and enable them to feel they have a full, interactive place with the visual world.

The vOICe sensory substitution device is a revolutionary tool that helps blind people use sounds to build an image in their minds of the things around them. Tests using the device found that, even without any training, the best performances exceeded the level of visual performance of the current invasive technique for vision restoration, such as stem cell implants and retinal prostheses.

Although the use of stem cells might improve to provide the literal sensation of sight with time, the affordable and non-invasive nature of the vOICe provides another option. As well as an alternative to invasive techniques, sensory substitution devices might be best used alongside them to train the brain to see again, or even for the first time. University of Bath. Ninety-five percent uncertainty intervals UI were calculated. Results : Globally, among 7.

The estimated number of blind persons increased by Notable inter-regional and gender inequalities exist which highlight the need to scale up vision impairment alleviation efforts at all levels.

Purchase this article with an account. Alerts User Alerts. Global Prevalence of Blindness and Distance and Near Vision Impairment in progress towards the Vision targets and what the future holds.



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