Originally posted by oladulce
Quote: | Originally posted by BajaBlanca
what causes a detached retina ?
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Your retina is a thin membrane (like a grape skin, I guess you could say) only this "skin" is is attached to the very back of your eyeball on the
inside. The retina is also attached to a nerve that goes to your brain. Light enters your eye and hits the retina and the retina sends info to your
brain and your brain interprets what you see.
If a retina starts to pull away from the back of the eyeball, the light coming in to the eye is distorted when it hits the retina and the brain can't
figure out what the message is.
A projectile to the eye like a clothes pin would not typically be the cause of a retinal detachment. It could happen if the fluid in the back chamber
of your eye was somehow effected, but that wouldn't be my first guess. The flying clothes pin did not strike your retina- that structure is inside
your eyeball.
Retinal detachment can happen after trauma but it's usually a result of a quick, violent jarring of your head (bungie jumping is often used as an
example) that causes the retina to tear away from the eye.
Most of the time detached retinas occur because of a existing medical condition such as diabetes, and possibly prolonged steroid use (like prednisone
for Rheumatoid arthritis, asthma, MS etc), a previous history of a detached retina, or just from aging. Detached retinas can happen after cataract
surgery sometimes.
I'm glad your floaters subsided Blanca. |