hello. Welcome to HCM.
It is very much possible that your child has had ocular trauma, and has ignored it. this is known as hyphema
, depending on chamber of eye in which it is, it may resolve or absorb by itself or need intervention. Also, it is very important to rule out foreign body. In any case, better to immediately take him to a good eye centre. for immediate relief, you may apply cold
compress by ice pack. Please do not place any eyedrops unless you have got complete eye-checkup.