What are the classes in Goalball?
Class B1: Players with a total absence of perception of the light in both eyes, or some perception of the light, but with inability to recognise the form of a hand at any distance and in any direction.
Class B2: Players with the ability to recognise the form of a hand to a visual acuity of 2/60 and/or a visual field of less than 5 degrees.
Class B3: Players with a visual acuity of above 2/60 to a visual acuity of 6/60 and/or a visual field or more than 5 degrees and less than 20 degrees.
All classifications are based on the amount of vision in both eyes and must be made by measuring the best eye and to the highest possible correction. This means that all athletes who use contact lenses or correcting glasses normally, must wear them during classification, regardless of whether they intend to use them during competition. There are also playing opportunities in Australia for athletes who do not meet the minimal eligibility criteria for these classifications.