[QUOTE=Mark in Idaho;1122247]Floaters are just a perception issue. You injured brain does not filter out the floaters where a healthy brain would see the same floaters and ignore them. Most floaters are just debris in the tears.

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That's usually true. However, if the TBI is the product of a trauma, like a bad fall or MVA, it's a good idea to make sure the floaters are not associated with any retinal tearing. If he follows your good advice to visit a neuro-optomologist, they'll check for that.