According to experts, too much screen may be harmful for your child’s vision and eye health, as well as general development.
What is the danger of too much screen time? - Quora
The Harmful Effects of Too Much Screen Time for Kids
Excessive screen time impacting health of children - Vanderbilt
Is Too Much Screen-Time Affecting Your Mental Health
Screen Time Side Effects in Kids and Teens
How Much Time is Too Much Screen Time? - SLMA
Negative Effects Of Excessive Screen Time On Children's Health
Screen time among school-aged children of aged 6–14: a systematic review, Global Health Research and Policy
Video Clips Daily Mail Online
Bad Effects of Too Much Screen Time on Toddlers - The Teaching Aunt
Consequences for kids' of endless screen time
The Effects of Too Much Screen Time on Children's Vision - CHOC