Neuromuscular systems control the muscles within the eye (intraocular muscles) the muscles attached to the eye (extraocular muscles) and the muscles in the eyelid. The visual system provides afferent input to ocular motor circuits that use visual stimuli to initiate and guide the motor responses. The ocular motor systems control eye lid closure, the amount of light that enters the eye, the refractive properties of the eye, and eye movements. We use our eyes to monitor our external environment and depend on our ocular motor systems to protect and guide our eyes. They involve the action of few muscles and of well defined neural circuits. Hope everyone else's cat makes out okay with the dilated pupil.The simplicity of the motor systems involved in controlling eye musculature make them ideal for illustrating the mechanisms and principals you have been studying in the preceding material on motor systems. With his age, he is now beginning to have early glaucoma in the other eye and I can tell he can't see nearly as well as he used to. It can indicate brain swelling, tumors, or other issues so xrays are needed. A dilated pupil though needs to be seen by a vet immediately. He has done well through the years without any problems related to his eye. We could never be sure, but assume he is partially/mostly blind in that eye. His lashes were scratching his eye causing conjunctivitis and scratching from fluid loss of the eyeball. He needed surgery within 6 mos/year to pull back his eyelids. He was only sick/dehydrated for a few days, but as time went on, the dilation stayed. From what the vet was able to determine, he had probably had an accident or been hit by a car, etc. My male (also orange tabby)Boy has had a dilated pupil for about 10 years now. My cat has had the same condition for 10 years Now I have to bring him to his food and water, he finds his litter box if I keep it near by. He has been such a fighter but can I expect him to live blind and confined for the rest of his life?He used to love to fetch little stuffed toys for me. I don't want him to suffer but I don't want to give him up. Monday was a holiday so tomorrow I bring him to see what is wrong. That is when I checked and saw that he could no longer see out of either eye. He continued to be weak and listless for several days and I began to notice he also was having trouble walking around, he seemed to walk into walls and furniture. I picked him up and brought him inside, and gave him water. I am caring for my elderly mother, and so did not have much time to think about it, until I saw he was still there 2 hours later. He is three yrs old now and the other day I noticed him laying on the back steps in the hot sun. The vet wasn't sure he could keep the eye, but other than it being dilated and cloudy, it seemed fine. The BB went into his eye and blinded him, exited the eye and landed above his jaw. When he was about one yr old some horrid miserable excuse for a human being shot him above the eye with a BB gun. My orange tabby boy Jasper was a rescued cat someone had left in a garbage can in a park as a kitten. I wish all of you and your cats well and happy.
I hope this helps the rest of you out there, at least with some ideas as to try to help. By the way the other eye rarely ever dilates. Like it is bothering her she liks her paw and paws at the other eye. Also, about 6 hours after she throws up then she starts to covet the other eye that did not dilate. They both said high dollar tests would be in order and even then they still might never find out what is wrong. Took her to two vets and basically they don't know what it is because she is topically healthy. We changed her food to Blue Basics (duck and potato) and started keeping a journal, sure enough as she started on the new food instead of twice a week that she would throw up, it went to once a week and not as much food.
The thing is, usually within 6 hours of our noticing her eye dilated, she would throw up violently, usually undigested food. About 8 months ago her eye started to dilate. My cat Daphnee is about 2 years old we found her when she was about 6 months old. Hi there and thank you so much for this page.
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