The Men's 800m athletics events for the 2012 Summer Paralympics took place at the London Olympic Stadium from August 31 to September 8.
Athletes in this category have a variety of visual impairments, but can typically recognize contours from a distance of 2 to 6 metres.
These athletes do not have the capacity to remain still and they show involuntary movements with all four limbs affected.
The T46 category is for athletes who have a single above or below elbow amputation or similar disability, with normal function in both legs.
The T52 category is for wheelchair athletes with damage to spinal cord in the higher parts of the back, substantially impaired or no trunk function, and minimal or no leg function.
Pushing power comes from elbow extensions, and appears close to normal except for use of modified gloves to compensate for grip.