My 3 year old son is diagnosed with only cylindrical eye power -2 , other eye sight factors are okay . He was okay when we got his eye test at 2 year . What suddenly happened in one year and cylindrical power is -2 now 3 year. Is this side effect of screen he uses very less.

A. Screen is of course a big reason in an early age but sometimes you also should know that this is genetic maybe the girls side as in the mother side of the father side there is a history of spectacles which is why it follows in generations so it can be associated with that it is not necessarily associated with skin in that case the child has a lot of access to that time the number can increase like this with your child the screen time is not much it’s just associated with genetics