Inability to see to a certain standard indicative of serious impairment. Various standards exist, including the using the World Health Organization definition of visual acuity of <3/60 in the better eye.


Public Health World Health Organization Visual Acuity Social Policy Organization Definition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media LLC 2010

Personalised recommendations