Screens are designed for humans, humans are not yet designed for screens. Fixating at a near distance in a sustained way over extended periods of time can be detrimental for visual systems, especially for those who are still developing, i.e. toddler and school aged children.
Symptoms of Computer Vision Syndrome: an increase in vision difficulties associated with using electronic media are
Anyone spending time on a computer or electronic device should have a regular thorough vision assessments.