One of the most commonly reported disabilities is vision loss,which can be diagnosed by an ophthalmologist in order to determine the visual system of a patient.This procedure,however,usually requires an appointment wi...
In some parts of China,where the novel coronavirus disease (COVID-19) pandemic has been effectively contained,schools are being reopened gradually.But a large number of students must continue with online lessons that ...
Nowadays, more and more people, especially teenagers have poor eyesight and they have to wear glasses. There are many reasons for this. Some people watch too much TV or play computer games for too long. Some people re...