Interactive whiteboards have been heralded as devices that will enhance education and be a major plank in the government's drive for new technology in schools.
But the BBC has learnt that while millions of pounds have been spent on them, very little attention has been paid to a potential threat to the eyesight of teachers and children.
It is only through the persistence of a whistleblower from the whiteboard industry itself that the authorities have begun to address the fundamental gaps in safety that still exist.
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