<prompt> Disability ceificate for poor vision if 460, is impairment percentage of:100754030  <response>: Disability ceificate for poor vision if 460, is impairment percentage of: 75 All with correction Category Better Eye Worse Eye Age Impairment Category 0 69-618 624 to 636 20 Category I 618-636 660 to Nil 40 Category II 640-460 or field of vision 10-20 360 to Nil 75 Category III 360 to 160 or field of vision 10 F.C. at 1 ft. to Nil 100 Category IV F.C. at 1 ft. to Nil or field of viosion 10 F.C. at 1 ft. to Nil 100 One eyed persons 66 F.C. at 1 ft. to Nil or field of vision 10 30 Note: F.C. means finger count Ref: OFFICE OF THE CHIEF COMMISSIONER FOR PERSONS WITH DISABILITIES DISABILITY GUIDELINES : Categories of visual Disability: 