Be careful of brain cancer if your eyesight deteriorates

Today we are going to tell you some knowledge about brain cancer. We hope that our efforts will be helpful to you. Let’s learn more about this knowledge together.

According to experts, human vision actually acts as an optical lens. When an object is imaged on the retina at the back of the eye through the optical system of the eyeball, the retina transmits the image to the skull through the optic nerve and finally forms an image on the cerebral cortex. When people look at an object, the image of the object must go through a series of transmission processes from the eyeball, retina, optic nerve, and cerebral cortex before people can feel the appearance of the object. Problems in any link of this process will lead to changes in vision or visual field.

Experts say that when the intracranial tumor compresses the optic nerve or squeezes the eyeball, it will cause decreased vision or changes in refraction, leading to visual impairment such as decreased vision or astigmatism. According to statistics, 41% of patients with intracranial sellar tumors have decreased vision and visual field defects as their first symptoms. The growth of the tumor is a gradual process, so many patients mistakenly think that it is just a temporary vision problem and do not pay attention to it, and some doctors often only consider eye diseases. Some patients are often misdiagnosed as glaucoma, primary optic atrophy, retrobulbar neuritis, retinitis, refractive errors, etc. The pituitary gland is located in the sella turcica of the cranial cavity and has a complex and important endocrine function. When it begins to lesion, early use of hormone therapy will have a certain effect, which gives people a false impression that it is not discovered until the condition is serious. At this time, the best treatment time has been missed and the opportunity for complete recovery has been missed.

Visual disturbances should be treated with head CT

Experts said that the department often receives patients who are diagnosed with intracranial tumors due to vision loss. Experts said that many patients only discover intracranial tumors such as pituitary tumors, craniopharyngiomas, tuberculum sellae meningiomas, etc. when their vision is severely impaired. At this time, the tumor is already very large, vision is significantly reduced, and the chance of recovery has been greatly reduced. According to statistics, optic nerve atrophy occurs in 86% to 97% of intracranial tumors treated by neurosurgery. This means that the postoperative vision recovery of most patients is not optimistic. If the intracranial tumor can be found when the vision changes just appear, the treatment effect will be much better, and the patient will maintain a higher quality of life after surgery.

Experts point out that when there are the following signals, we must pay attention to them:

(1) For patients with unexplained visual impairment or visual field loss, even if there are no obvious fundus changes, a head CT scan should be performed routinely, and MRI examination should be performed further for suspected cases.

(2) For patients with ophthalmoplegia, a head CT scan should be performed after excluding factors such as trauma, diabetes, and inflammation.

(3) In addition to changes in eye vision, tumors are often accompanied by other systemic symptoms, such as endocrine disorders and headaches. Therefore, when these symptoms occur, the presence of intracranial tumors should be suspected.

The above is some knowledge about brain cancer that we have prepared for you today. We hope it will be helpful to you. If you have any other needs, you can also consult our online consulting experts at Fuhe Health Network. We are always here to answer your questions. Fuhe Health Network is always by your side and cares about your health issues! Fuhe Health Network wishes you good health!

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