Small Screens May Create Eyestrain, But Not Visual Damage, Researchers Find

Use of small screens can lead to eyestrain and discomfort, but not eye damage.
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  1. Eyestrain – Fatigue caused by persistent eye focus for long periods of time.
  2. Convergence Eye Movements – The inward movement of both eyes toward one another-- typically done when both eyes are being used together to focus on a nearby object.
  3. Optics – The study of various characteristics and behaviors of light, including the science of vision.