Hoya’s SYNC III lenses Digital eyestrain symptoms such as tired eyes, headaches, blurred vision, dry eyes, light sensitivity, poor night vision, and blurred vision can present themselves in as few as two hours.  Tired eyes – also called asthenopia – is a common complaint and a catch-all for a variety of digital eyestrain symptoms. Headaches are a result of stress and strain. Blurred vision is a common complaint that computer users often just accept as normal. Dry eyes are common because we blink at almost half the rate we normally do when reading or focused on something up close. Also,
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