The correct answer is play outside more
Children may have refractory problems such as myopia, hyperopia and astigmatism, as well as problems such as strabismus: deviated (or crossed) eyes; amblyopia: lazy eye or part: there is an upper eyelid, which can alter the school life of young students.
In this case, the ophthalmologist's recommendation was for him to play more outside the home and drop the electronic devices
The blue light on the cell phone screen can cause a syndrome called computer vision syndrome (CVS). This syndrome is nothing more than the excessive use of digital devices. In addition to the time we spend exposed to blue light, the proximity of light to the eyes also impairs our vision.