Classifications

 
B1: Possessing no light perception in either eye up to light perception, but inability to recognize the shape of a hand at any distance or in any direction.

B2: From ability to recognize the shape of a hand up to visual acuity of 20/600 and/or a visual field of less than five degrees in the better eye with the best practical eye correction.

B3: From visual acuity above 20/600 and up to visual acuity of 20/200 and/or a visual field of less than 20 degrees and more than five degrees in the better eye with the best practical eye correction.