Chapter 3
Monday, June 4, 2012
I'm Seeing Spots!
Maria Capelli
Chapter 3
There are so many parts of the eye that are important for
perceiving, but specifically I would like to talk about the retina’s role in
perception. A few years ago, my mother’s retina detached from the rest of her
eye. (p.55) The book says that usually a detached retina results from an
injury to the eye, however my mother’s retina detached from the steroids she
took many years ago to treat her asthma. Not many people knew then that
steroids could cause retinas to detach and many people were prescribed them and
had no complications or side effects until recently, like my mother. Since her
retina was no longer attached to the pigment epithelium, she couldn’t undergo
visual pigment regeneration because the opsin couldn’t reconnect to the retina.
(p.55) She was blind in that eye until she has surgery to re-attach her retina. She
was able to gain a small portion of her eyesight back, but not all of it due to
the scarring the surgery left on her eye. She had one scar directly on top of the
macula, a spot on top and a little bit of the surrounding area of the fovea. It
resulted in a missing spot in the center of her vision. It was similar looking to
macular degeneration as described in our book. (p.51) Luckily, the scar
healed and the missing spot returned. About a year ago the retina in her other
eye detached and surgery helped her regain most of the vision, but she still
had some scarring. Below is what it would look like if there was scarring on
your eye.
Chapter 3
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