Among many health-care-related challenges facing developing countries, visual impairment remains a major issue. Some technology entrepreneurs are coming up with new ideas for products that could have an impact on the lives of blind people.
在发展中国家面临的诸多与医疗保健有关的挑战中,视力障碍仍是一个主要问题。一些科技创业家正想方设法研究能为盲人的生活带来便利的产品。
Globally, the number of visually impaired people, either partially or completely, is estimated at 285 million, according to the World Health Organization. More than 90% of visually impaired people live in developing countries, the WHO data show. Common causes of visual impairment are myopia, astigmatism, cataracts and glaucoma.
据世界卫生组织(World Health Organization)的统计,全球范围内视力受损的人(包括部分和完全受损)估计有2.85亿。世卫组织的数据显示,有超过90%的视障人群生活在发展中国家。造成视力障碍的常见原因有近视、散光、白内障和青光眼等。
Visually impaired people in developing countries usually rely on basic walking canes to detect obstacles around them. While there are technologically advanced walking canes─such as those equipped with ultrasonic sensors or laser technology─some young engineers are trying to provide blind people with alternatives to canes.
一般来说,发展中国家的视障人群依赖普通手杖来“发现周围的障碍物。如今,尽管有了技术更为先进的手杖(如配备了超声波传感器或雷达技术),一些年轻的工程技术人员仍正努力为盲人提供手杖之外的其它选择。
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