This classification is borrowed by some other sports , including blind golf who also define the class as `` From ability to recognize the shape of a hand up to visual acuity of 2\/60 or visual field of less than 5 degrees '' .
Blind golf rules say B2 golfers include `` From ability to recognize the shape of a hand up to visual acuity of 2\/60 or visual field of less than 5 degrees '' .