<prompt> According to WHO. blindness is defined as a visual acuity of the better eye, less than -Jun-60May-60Apr-60Mar-60  <response>: Ans. is d i.e., 360 Blindnesso WHO has proposed a uniform criterion and defined blindness as Visual acuity of less than 360 or its equivalento In the absence of appropriate vision charts, the WHO has now added the inability to count fingers in daylight at a distance of 3 metres Xo indicates less than 360 or its equivalent. 