If you spend hours staring at screens each day, you have probably heard the advice. Every 20 minutes, look at something 20 feet away for 20 seconds. The 20-20-20 rule for eye strain has become the ...

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I was about eight years old when I first got glasses. My mum had noticed me starting to shuffle ever closer towards the television, squinting at the screen, to watch Pokemon. I was reading Jacqueline ...