Beware the rise of the boss-eyed.
Smartphone use suspected of causing eye problems among youth in Japan - The Mainichi
Heavy smartphone use is making children cross-eyed - study
Parenting Kids in the Age of Screens, Social Media and Digital Devices
Is Crossing Your Eyes Harmful?
Farsightedness in Children: Causes, Diagnosis & Treatments
Dry eyes in kids: Causes, symptoms, and treatment
Smartphones 'causing children to go cross-eyed', South Korea study says
Do Smartphones Make Kids Cross-Eyed? Boy's Case Is Worth Reading
Do Smartphones Make Kids Cross-Eyed? Boy's Case Is Worth Reading
Pseudostrabismus - American Academy of Ophthalmology