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' .