Table 1.

Vision loss categories chosen by the GBD Vision Loss Expert Group.

Vision loss category	Definition by visual acuity* in the better eye
Distance mild vision impairment	<6/12 but better or equal to 6/18
Distance moderate vision impairment	<6/18 but better or equal to 6/60
Distance severe vision impairment	<6/60 but better or equal to 3/60
Distance blindness	<3/60 and/or a visual field of no greater than 10° in radius around central fixation
Near vision impairment	<6/12 but better or equal to 3/60 for near, but 6/12 or better for distance

^*Snellen visual acuity or the equivalent calculated from published LogMAR values.