translation.en: Seva got started because we wanted to apply these lessons of surveillance and epidemiology to something which nobody else was looking at as a public health issue: blindness, which heretofore had been thought of only as a clinical disease.
translation.zh: 因为我们希望把这样的预警以及相关的传染疾病的知识 应用到一个没有人会意识到 是公共医疗问题的领域 也就是失明 人们以前认为那只是一个门诊能解决的病