No minimum or maximum requirement for the number of vision impaired on court at any time.
Equipment -
If a 5 team competition Double Round Robin played over 3-4 days with modified finals (1 Semi final to qualify for the final)
If a 6 team competition Double Round Robin played over 3-4 days with modified finals (2 Semi final to qualify for the final)
If a 7 team competition Double Round Robin played over 3-4 days with modified finals (2 Semi final to qualify for the final)
If an 8 team competition Single Round Robin played over 4-5 days with standard finals (2 Semi final to qualify for the final) and playoff finals to decide placings down to 8th place