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http://www.screenprotector.cn Do you often feel dry, swelling, painful or sore in your eyes? Do you use mobile phone over one hour every day? Do you watch TV over 2 hours without rest every day? Do you work more than 8 hours each day in the front of computers? Professor Richard Funk, a famous German ophthalmologist, had his report "Blue Light can Seriously Threats Retinal Neuron" published on European Journal of Neurosience in August, 2011.