<prompt> A patient with visual acuity of 660 in better eye but more than 360 is having:Economical blindnessSocial blindnessLegal blindnessAbsolute blindness  <response>: Definitions of blindness: WHO definition of blindness: Visual acuity of less than 360 Snellen or its equivalent. Economical blindness: Vision in better eye 660 to 360 Social blindness: Vision in better eye 360 to 160 Legal blindness: Vision in better eye 160 to perception of light Absolutetotal blindness: No light perception Ref: Ophthalmology By A. K. Khurana, 3rd edition, Page 443, 444. 