A girl has her vision tested in Lima, #Peru. Globally, at least 2.2 billion people suffer from vision impairment. Almost half of these cases could have been prevented - or treated - through adequate eye care. Vision loss can affect people of all ages. Thursday's World Sight Day is a reminder of the importance of routine eye checks to prevent vision impairment, which can have major and long-lasting effects on all aspects of life. 📸: who/Sebastian Liste #WorldSightDay