Supporting families affected by retinoblastoma. The Childhood Eye Cancer Trust (CHECT) is the only UK charity solely dedicated to helping families and individuals affected by retinoblastoma, a rare form of eye cancer. We provide support, raise awareness and fund research into prevention and treatment. We know that when a child is diagnosed, it can be a distressing and frightening time for everyone, and we are here to help. We also understand that for some people retinoblastoma can have a long term impact and we offer lifelong support for anyone affected – from diagnosis to adulthood.