The T11 category is for athletes with a visual impairment. A T11 athlete may be entirely without sight, or be able to perceive light, but have no ability to see the shape of a hand at any distance. T11 athletes commonly run with guides.
The T12 category is for athletes with visual impairment. Athletes in this category will generally have some residual sight, the ability to recognise the shape of a hand at a distance of 2 metres and the ability to perceive clearly will be no more than 2/60. T12 athletes commonly run with guides.
The T54 category is for wheelchair athletes with no leg function, but near full arm function and reasonable to normal trunk function. Typically this may be caused by a lower spinal cord injury or spinal cord birth defect.
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