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What Classification Categories are there for athletes who are blind or have low vision?

The International Blind Sports Association and International Paralympic Committee determine each category of classification for athletes who are blind or have low vision.

What are the Paralympic classes for vision impairment?

The list below is intended as a guide only. Only authorised classifiers are able to provide a formal para sport classification.


Class B1

From no light perception in either eye to light perception, but an inability to recognise the shape of a hand at any distance or in any direction. Visual acuity is poorer than LogMAR 2.60 with best corrected vision.


Class B2

Ability to recognise objects up to a distance of 2 metres. Visual acuity ranges from LogMAR 1.5 to 2.60 (below 2/60) with best corrected vision and/or visual field of less than ten (10) degrees diameter


Class B3

Can recognise contours between 2 and 6 metres away. Visual acuity ranges from LogMAR 1.40 – 1.0 (2/60 – 6/60) with best corrected vision and/or visual field of more than ten (10) degrees and less than forty (40) degrees diameter.

How do I get a classification?

For further information, please contact your national /international sporting body:

Blind Sports Australia
Australian Paralympic Committee
International Blind Sports Association