A girl, 7, who struggled to see the board at school was told by doctors she had a lazy eye before being given a devastating cancer diagnosis.
Sarah Atif, from Harrow, North London, had problems with her eyesight and kept complaining she was tired, and her mum Uroos was growing increasingly concerned.
Sarah's teachers also raised the alarm when she started writing much bigger in her school books, and so she was referred to Moorfields Eye Hospital for an eye test.
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