How blind children are produced?

Well, im blind and that could've been genetic or caused. It really depends on the des ease and condition. It could be congenital, which means born with it. Sometimes, blindness or vision loss runs in the family, so the baby develops that condition. Other times, babies are born prematurely, so their eyes are underdeveloped and causes major issues. Sadly, some mothers drink, smokes or takes a medication, while their pregnant and they're babies eyes can pay for that. Almost usually, it's the other two.reasons. Hope this helped! If you have any other questions just private message me!