Fell and hit right eye

That's very dangerous for your child. It needs to be checked by an ophthalmologist who can handle cases involving children. If you are around Singapore, I can recommend Dr. Leo Seo Wei. She's really gentle and good at handling kids, and she makes every consultation welcoming for children. My little brother had a consultation with Dr. Leo, and he's not nervous at all. She assures my little brother all the time during the consultation.