Brain Tumor and Visual Disturbances
The most common visual disturbances might be caused by a brain tumor include blurred vision, double vision (seeing two objects when you should be seeing one), foggy vision (cloudiness), partial or total blindness, a defect of seeing area in different parts (typically lost peripheral vision up to tube vision) and colorblindness. These visual disturbances mostly are results of developed optic neuropathy - as the results of direct (by tumor) and indirect (by elevated intracranial pressure) optic nerve damage.
How Visual Disturbances Can Be Classified
Therapeutic Electrical Stimulation Helps Restore Vision After Brain Tumor
With the purpose to partially regain eyesight caused post tumor optic neuropathy the method of therapeutic electrical stimulation started to be used since1990 for visually impaired patients suffered from different brain tumors. We would like highlight two clinical cases where significant improvement of visual acuity and visual field was achieved. We have published more results about vision restoration after tumor, where possible outcomes were written und effects of therapeutic electrical stimulation summarized.
Take time and read a patient story, when vision after brain tumor significantly improved
Clinical Case I. Diagnosis. Right parietal lobe meningioma. Hydrocephalus. Left side hemianopsia. Bilateral optic nerve atrophy caused hydrocephalus. Initial visual acuity: Right eye - uncertain light perception, left 6/12 (50%). VF - left: narrow seeing area with complete left side hemianopsia, right - test not possible. Three courses of electric stimulations within seven months.
Dynamic of visual functions: right eye - appearing of object vision - fingers counting from 2 meters (2-3%). Visual acuity of the left eye was restored up to 90%. VF - normalization in nasal part, significant enlargement in seeing area to left side up to 20-40 degree (mostly above the horizontal meridian).
Clinical Case II. Diagnosis. Cerebellum Astrocytoma (Grad I). Closed Hydrocephalus. Bilateral optic nerve atrophy (L > R) as the result of compression on chasm by dilation of third ventricle. VA - blindness left eye. right eye tube (narrow) visual field. Patient passed two courses of therapeutic electrical stimulation.
Significant enlargement of constricted visual field for all meridians. Left eye - appearing light perception with correct light projection - ability to detect source of light (window, door), ability to see shadows and shapes relative to large objects.
Method Of Therapeutic Electrical Stimulation Was Patented in 2008 That Helped Restore Eyesight Many Patients After Brain Tumor
|Dr. Anton Fedorov||
Not sure if you are eligible for this therapy?Ask our physicians
|Dr. Julia Chibisova|
Post tumor optic neuropathy (optic nerve damage) is direct indication to receive our therapeutic electrical stimulation we offering in our center.
Since 1995 till nowdays we cure patients with optic nerve atrophy caused different brain tumors, because many of them can notable improve vision by regainig back seeing areas of visual field.
We have published the results of therapeutic electrical stimulation for patients with optic nerve damage including 40 patients with sight deterioration as the results of tumor. There was significant positive improvement of vision. Since 1995 we have treated more than 300 patients who suffered from brain tumor. In 2008 we have patented this approach of vision restoration for visually impaired patients with developed post tumor optic neuropathy, including very severe cases of sight loss.
The Following Tests And Procedures May Be Used To Diagnose Brain Tumors:
What Are the Symptoms of a Brain Tumor?
- Blurred or double vision
- Local Seizures
- Muscle weakness in the face, arm, or leg
- Changes ability to hear, taste, smell
- Dizziness or vertigo
- Uncontrollable movements
- Tingling on one side of the body
- Trouble speaking or understanding
- Memory loss
- Decreased alertness, which may include drowsiness and loss of consciousness
- Changes in patient’s general mood, personality, emotions, and behavior
- Nipple discharge or galactorrhea
- Lack of menstruation in women
- Development of breast tissue in men, or gynecomastia
- Enlargement of the hands and feet
- Increased amounts of body hair, or hirsutism
Risk factors for brain tumors include:
About Brain Tumors
Brain tumors can be malignant or benign. When benign or as the malignant tumors grow, they can elevate the pressure inside the skull to increase and cause the damage to the brain tissue. Occurring brain tumors are categorized as either primary or secondary. A primary brain tumor originates in the brain itself and are often benign. A secondary brain tumor, also known as a metastatic brain tumor, occurs when cancer cells spread to the brain from another organ, such as your lung or breast.
Primary Brain Tumors
Primary brain tumors can develop from brain cells, the membranes that surround your brain, which are called meninges, nerve cells and in glands. Primary tumors can be benign or cancerous and in adults, the most common types of brain tumors are gliomas and meningiomas.Gliomas are tumors that develop from a variety of glial cells. There are several types of glial cells tumors. Astrocytic tumors such as astrocytomas, which originate in the cerebrum and are often benign, oligodendroglial tumors, these are often found in the frontal temporal lobes, glioblastomas, which originate from the supportive brain tissue and are the most aggressive type, also meningiomas, which originate in the meninges and schwannomas, which originate in Schwann cells that produce the protective cover of your nerves (myelin sheath). Most meningiomas and schwannomas occur in people between the ages of 40 and 70. Meningiomas are more common in women than men, while schwannomas occur equally in both men and women. These tumors are usually benign, but they can cause complications because of their size and location. Other primary brain tumors include pituitary tumors, which are usually benign, pineal gland tumors, which can be benign or malignant,ependymomas, which are usually benign and craniopharyngiomas, which occur mostly in children. Others include primary brain lymphomas, which are malignant, primary central nervous system, (CNS) lymphomas, which are malignant and primary germ cell tumors of the brain, which can be benign or malignant.
Secondary Brain Tumors
Secondary brain tumors make up the majority of brain cancers. They start in one part of the body and spread, or metastasize, to the brain. The following cancers can metastasize to the brain, lung cancer, breast cancer, kidney cancer and skin cancer. Secondary brain tumors are always malignant. Benign tumors don’t spread from one part of your body to another.
Treatment of Brain Tumors
The most common treatment brain tumors is surgery. The treatment of a brain tumor depends on several variables: type of tumor, size of the tumor, location of the tumor, general health of the patient.The surgeon works to remove all traces of cancer while causing no harm to healthy brain tissue. Partial removal of brain cancer can be beneficial and this surgery combined with other treatments, such as radiation therapy and chemotherapy, can lead to successful intervention.
During first week after surgery an improvement of visual fields might lead to normalization in some individuals. Within 1 month to 4 months most spontaneous improvements take place. After 6 months an improvement did not appear but some changes may be marked in some individuals.