A member asked:

2 yr old got bumped on head. i checked his pupils with a light they get smaller but get bigger and smaller again with light on them. he has shunt?

3 doctors weighed in across 2 answers
Dr. Oscar Novick answered

Specializes in Pediatrics

Head bump: It appears that no harm was done by the bump on your childs head. As long as he didnt lose conciousness, vomit, got sleepy and reacting to light he should be alright. If, on the other hand, he develops symptom take him to the er for evaluation.

Answered 12/9/2013

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Normal: Light reflex is exactly what you describe. In response to intense light pupils constrict, when light is off they revert to bigger size to accommodate to ambient light. As to your child, if bump was hard enough, you need to take him to a doctor.

Answered 5/28/2013

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