As an ethusiastic but terrible school cricketer, the thought of playing without full sight is terrifying and it's quite astonishing that people manage this. One way to supporting is to join the Primary Club[1], a charity that supports sports and recreational facilities for the visually impaired. You can join if you have ever been out first ball in any form of cricket (or "just loves the game").
[1] https://www.primaryclub.org/