Increase in cranial fluids in the brain effecting optical nerves ... Need more details?
915515
There are a number of etiologies (causes) of increased intracranial pressure.  The approach would depend on which one is causing her problem.  I've given you the NIH link on the subject.\n\nAloha
684561
With aging, decreased blood flow and reduced oxygenation to the brain causes slower transmission of nerve impulses. This change causes the elderly to need additional time for motor and sensory tasks involving speed, balance, coordination, and fine motor activities (buttoning buttons, opening bottles, etc.). \nDeterioration in nerve terminals that provide data to the brain about body movement and position occur with aging, which results in balance and coordination problems in the elderly. \nIt is common for the lens in eyes to become less elastic with age, making it more difficult to see in dim lighting or when switching between spatial distances. \nCataracts are a common symptom of aging. \nLenses in the eyes turn yellow in color, causing distorted color perception with aging. \nAs the body ages, accommodation of pupil size decreases, so the eyes take longer to adjust to changes in lighting. \nConsistency of fluid within the eye changes with aging, causing blurred vision in the elderly. \nWith aging, it is normal for decreased secretions and tears in eyes, causing dryness and itching. \nNeurons in ears decrease with aging, and the blood supply diminishes in the body. Aging changes may cause hearing difficulty. \nAbility to sense pressure, temperature and pain diminish with age.
1077836
none salt cause high bloodpressure and stress
1089710
It's from endorphins. The sudden build up of pressure (and there's a heck of a lot of pressure!) causes a release of endorphins from the brain.
730933
Demand a second opinion. Positive note I had similar symptoms for years rarely a day off. I had a brain scan, a EEG and other tests turns out I have hemiplegic migraines - very scary. I have an aura with mine - a bad taste often triggered by what I eat or smell. Gloss paint sends me off my legs for up to 2 weeks. I was investigated for having a stroke! Go back an see your Dr if symptoms don't improve and demand further tests! Have allergy/ sensitivity tests done, mine showed my triggers as being corn, melon, larger etc. I changed my diet and took FEVER FEW natural health supps and have made a fantastic recovery, with the occasional relapse. I f your symptoms are new to you and you have had no further investigations than a DR appointment, go back and demand more. Take a friend or relative with you if your reluctant to push the issue. You only have one life - enjoy it. Luv J xx
750439
amy is right.  this is the basis behind percieved perception.  what you see may be different than what somebody else sees however you speek of it as the same thing.\n\naarons answer is missing the part of transfering the light information into a chemical reaction inside the rod cells and then turn to electical activity.  this is where the possible problem occurs\nbetter yet heres the sequence \n\n1. Light rays enter the eyes by passing through the cornea, the aqueous, the pupil, the lens, the vitreous, and then striking the light sensitive nerve cells (rods and cones) in the retina.\n\n2. Visual processing begins in the retina. Light energy produces chemical changes in the retina's light sensitive cells. These cells, in turn, produce electrical activity.\n\n3. Nerve fibers from these cells join at the back of the eye to form the optic nerve.\n\n4. The optic nerve of each eye meets the other at the optic chiasm. Medial nerves of each optic nerve cross, but lateral nerves stay on the same side. The overlap of nerve fibers allows for depth perception.\n\n5. Electrical impulses are communicated to the visual cortex of the brain by way of the optic nerve.
360785
The symptoms of brains tumors, can be varied depending on the size and location(frontal, temporal etc) of the tumor. Also many tumors are secondaries, so systemic involvement and hence systemic sysmptoms are not ruled out.\n\nYou will to have describe ur symptoms in detail, and most importantly PLEASE  SEEK A MEDICAL CONSULT  ASAP.\n\nThe probability is that  u might be getting glasses (vision changes) \nother causes include\nMigraine (incl. hypersensitivity to sound and/or light)\nTemporal ateritis ( female patient, pain in temples)\nTension Headache \nHead injury ( haemorrhage)\nSpace Occupyig Lesion ( tumor,. etc)\netc\n\nI hope that helps a little bit
750006
i'm hoping that as i am writing this-you have already called someone to take you to the emergency room\n\ni work in trauma icu-we specialize in head injuries. from the sound of it-you have sustained a severe concussion and need to seek medical attention NOW. \n\nthe fact that you are having changes in your pupils indicates there is injury to your brain-this could indicate a bleed and in severe cases-these require surgery!!\n\nplease,please have someone drive you to the hospital (do NOT drive yourself), if there is nobody to take you CALL 911!!\n\nhead injuries are very serious and can worsen rapidly with no warning at all. you need to have a ct scan of your head done to make sure there is no bleeding or swelling going on inside your brain
653039
take an aspirin..and drink plenty of water..not sure what the chemistry is behind it but i guess its cooling and so..helps! looking at the computer screen also contributes to headaches..as it puts a lot of strain on the eyes. i'd say..get some rest!
578298
drink more water. i heard that dehydration is one cause for headaches.
554829
My daughter had the very same symptoms and we had her see a neurologist.  He did all of the tests and said she needed to drink more water.  For some reason some people require more water to function properly.  I thought it was crazy but since she has increased her water intake she hasn't had the problems anymore.
894401
there's an obstruction on the nerves that causes your eyes to function abnormally
1002900
Have you seen a specialist? I have complicated chronic migraine headaches with pretty bad pain daily so I know somewhat what your going through. I also have neurological side effects and left side numbness. ( I've been through much testing to see what its caused by and its just complicated migraines)\nI have optical disturbances where I go blind through the day  because the nerves in my head are messed up because of the migraines and I start to see flashing lights and colours. I have found releif with medications and weekly injections into the nerves in my neck and head. I've also found releif with massage. I dont know if that would work for you, but definately go see a specialist! Prayer gets me through it too!
435769
Dear hot ...\n\nI do that, too.\nI have always wondered why.\n\nI once heard someone say it has to do with the way the light affects your optical nerve.
872458
Try this, it just might help you http://en.wikipedia.org/wiki/Optic_nerve\ngood luck.
888477
Yes.  The more you use a neuron network the stronger it becomes.  The increase is minuscule, but certainly large enough to measure.  Good luck in your quest for more knowledge. Ciao!\n-C
739767
What you are indicating is a highly inflamed area located basically at the base of the skull.. this will involve the cranial nerves. You have described some of the symptoms which are stimulated by those nerves. Also, when you have a repression of the sympathetic nervous system, you will have the over-all symptoms you have described.\n\nI am sure your doctor of Chiropractic will not touch you until he/she sees an x-ray of the area.. Inasmuch as you have been under care there before, it does indicate you have a chronic problem with your posture and your spine. It has actually been a chronic sub-acute condition which was brought to the acute state by your injury. When you tried to relieve the pressure of the upper neck, you encountered that highly inflamed area and set of the chain reaction you experienced; You now are experiencing an imbalance of the autonomic nervous system which can have a drastic effect on all the functions supplied by those 12 cranial nerves. The parasympathetic system has over-ridden the sympathetic (are supposed to balance each other) and this will create other symptoms which you have expressed..Even have become highly sensitive to lights. and perhaps your blood pressure has fallen a bit. The ramifications of the autonomic nervous system are quite diverse. All the vessels and other features controlled by dilation are now enacted..without anything to  balance them, to maintain a normal state.\n\nWould be very important to get your DC's opinion on your condition.