Caroline Aherne and her brother Patrick were both diagnosed with a type of eye cancer as babies.
Aherne's sight was saved, but her brother had to have his right eye removed to prevent the cancer spreading.
Known as retinoblastoma, it is genetic and can lead to children losing both their eyes and at higher risk of developing further cancers in adulthood.
Aherne, who has been working with the trust on a campaign to highlight signs of the condition, said, "It is absolutely crucial that parents are aware of this horrible cancer."
More top news
Today will remain cloudy with rain pushing northwards through most parts of the UK.
The Prime Minister has said who he'll be rooting for in the final of the baking contest on Wednesday.
Two Air France directors had the shirts ripped off their backs by angry employees after the company announced loss of 2900 jobs.