Why
do you see stars when you bump your head? Seeing stars or bursts of light is
common after a bump on the head. These "stars" you see are neurons on
the visual cortex firing spontaneously.
This happens inside
the skull, where there is extra room for the brain to move backward and
forward. When you get a bang on the head, your brain is suddenly accelerated,
shaking the brain, this causes blood sloshing blood into or out of the
capillaries abruptly changing oxygenation levels. The back-and-forth motion in
the skull also affects the occiput. The occiput is the section of the cranium
that is located at the rear of the skull and contains tissues responsible for
communicating nerve impulses going into the eyes and the rest of the body.
In most cases, this
is no cause for concern. There is cause for concern when the stars don't go
away after a short period or return. If you have these other symptoms, you
should get to the ER:
• Headache
• Problems
concentrating
• Memory
• Balance
• Coordination
• Loss of
consciousness
• Confusion
• Ringing in the
ears
• Nausea and
vomiting
• Fatigue and
drowsiness
• Blurry vision
• Slurred speech
• Personality
changes
• Sensitivity to
light and noise
• sleep disturbances
• Seizures
Sources:
#eyegotcha
#PittsburghOptometrist
#PittsburghEyeCare
#seeingstars
No comments:
Post a Comment