Obesity is already recognized as one of the leading preventable causes of death from heart disease and diabetes but the RNIB report said it was also a key factor in sight loss.

• 肥胖已经被认为是因心脏病和糖尿病致死的最主要可控因素之一，不过RNIB的报告称，肥胖还是人们丧失视力的一个关键因素。