The definition of Blindness under the National Programme for Control of 

Blindnes (NPCB) is hereby modified  in line with WHO Definition :

"Presenting distance visually acuity less then 3/60(20/400) in the better

 eye and limitation of field of vision to be less than 10 degrees from 

center of fixation ".The nomenclature of the scheme is also changed 

from 'National Programme for Control of Blindness' to 

'National Programme for Control of Blindness and Visual Impairment' .