It can also cause numbness on the opposite side of the body from where the tumour is.ĭamage to the cerebellum can cause flickering of the eyes, as well as problems with balance, a loss of co-ordination, difficulty walking and speaking, vomiting and a stiff neck. Speaking, understanding words, writing and reading.judging distances, hand-eye co-ordination For example, a person could bump into furniture that they have seen, but have misjudged where it is. Bringing together information from your different senses (touch, vision, hearing, smell, taste) and making sense of it.Or, it may cause loss of vision on one side.ĭamage to the parietal lobe can cause difficulty with: You could struggle to see objects or colours or lose your vision completely. It processes the information coming from your eyes, so that you can understand what you see.Ī tumour in the occipital lobe can cause changes in vision. The occipital lobe is the main area involved with vision. Symptoms of a brain tumour can vary depending on the tumour’s location, and several areas of the brain play a part in an aspect of vision. The resulting pressure can alter how well the nerve works, and if this happens to the optic nerve, your vision can be affected. Pressure on the optic nerveĪs the tumour grows, or there is a build-up of cerebrospinal fluid in the brain, it can squeeze normal healthy brain tissue including the main cranial nerves within the brain. Also, patients who have previously had papilloedema might not get it again in the future. This depends on the size of the tumour and where it is. Not all patients with raised intracranial pressure develop papilloedema. This can be important as people don’t usually experience the visual symptoms in the early stages of papilloedema. Papilloedema can be picked up by opticians during normal eye examinations. But when it is caused by raised intracranial pressure (ICP), it’s known as papilloedema. Optic disc swelling can be caused by a few different things. The retina is the layer of light-sensitive cells at the back of the eye. The optic disc is the point on the retina where the optic nerve enters the eye from the brain. This is because of increased pressure in the skull. Swelling of the optic discĬhanges in vision can be due to the optic disc at the back of your eye becoming swollen. The RNIB have a lot of information about other eye conditions and resources that could help.īut, the changes in vision that ARE caused by brain tumours can be the following. Remember that there are lots of conditions that could cause changes in vision, and just because you are experiencing these doesn’t mean you have a brain tumour. Why can brain tumours cause a change in vision? Find out about symptoms caused by tumours in specific areas of the brain.Learn about the symptoms of a brain tumour.Or you could feel as if objects or people are suddenly appearing on one side of you. This could lead to you bumping into objects. Or you may find you have lost part of your field of vision. This is usually related to changes in your posture, like suddenly standing up. You could notice that it has become hard to watch TV or read.Īnother change in vision could be a sudden loss of vision lasting a few seconds (‘greying out’). How might changes in vision show themselves?Ī change in vision sometimes caused by brain tumours is blurred vision. But, it’s always important to get any symptoms checked out at an opticians. So, if you’ve had a change in vision, it’s likely that your symptoms are NOT because of a brain tumour. Please keep in mind that brain tumours are relatively rare. What to do if you think you have a brain tumour.Why can brain tumours cause a change in vision?.How might changes in vision show themselves?.On this page we’ll cover the changes in vision that can be brought on by brain tumours. Brain tumour symptoms can include changes in vision, like blurred or double vision, abnormal eye movements, restricted field of view and more.
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