Occipital lobe strokes occur in the back of the brain. This part of our brain helps us recognize what we see. Thet means stroke occipital bone The leaves can cause vision changes.
Occipital lobe strokes are uncommon. Stroke rates were higher in the frontal, parietal, or temporal lobes. A stroke almost always affects only one side of the brain. Occipital lobe stroke can occur in one or both occipital lobes.
This article will discuss why occipital strokes occur. You will also learn about the symptoms of a stroke in the occipital lobe and how a stroke in this part of the brain can affect your vision.
Types of Cortical Stroke
Occipital lobe strokes don’t happen very often because the blood supply to this part of the brain is established in a special way.
There are three arteries in the back of your neck. They are called the vertebral arteries, posterior cerebral arteries, and basilar arteries.
The job of these arteries is to carry oxygen-laden blood to the occipital lobe of the brain. If the blood supply to one or both occipital lobes stops, a stroke can result.
These three arteries connect and create a “backup” system called a redundant blood supply. This allows components to take over each other if desired. For example, if one small artery is blocked, the other can tighten to keep blood flowing. This helps prevent strokes.
Even with backup systems, strokes can still happen. An occipital lobe stroke can also occur at the same time as a cerebellar or brainstem stroke.
The brain’s blood supply has a “backup” system that helps prevent strokes in the occipital lobe. While they’re not a common type of stroke, they do happen.
Occipital lobe stroke can cause visual changes. If you have a stroke in this part of your brain, you may experience partial vision loss, complete blindness, and seeing things that are not there (visual hallucinations). Some people develop other vision syndromes.
The occipital lobes vary in shape and size around them. Each part of the leaflet plays a different role in helping you see. Vision problems caused by a stroke in this lobe depend on the area affected. Strokes in other parts of the brain can also cause vision changes.
Any type of stroke can affect your vision. However, a stroke in the part of the brain that helps you see is most likely to cause vision changes. These parts are called the occipital lobes.
When a stroke affects most of the occipital lobe on one side of the brain, you can lose half of your vision in each eye.This situation is called homonymous hemianopia.
Stroke survivor with homonymous hemianopia cannot see objects on one side. It will be the side opposite the side where the stroke occurred.
For example, if the stroke occurred in the left occipital lobe of the brain, the person would have difficulty seeing objects on the right side.
This vision problem usually affects both of your eyes. You will not be able to see your right side from your right or left eye.
However, your eyes work together. This is called visual integration. If you have homonymous hemianopia, your eyes may not be affected to the same extent.
Some people lose half of their vision in each eye after a stroke. However, each eye may not be affected to the same extent by a stroke. This is called homonymous hemianopia.
For example, a person with a stroke on the left side of the brain may have difficulty seeing things on the right side.
central vision deficit
Central vision is what you see in the middle of your field of vision when you look straight ahead. Your central vision is processed by a part of your brain called the occipital pole. While strokes in this part of the brain are rare, they do happen.
An occipital pole stroke can cause a large blind spot in the middle of your vision. The blind spot will be on the same side as the stroke.
This blind spot can make it difficult to see the face of the person standing directly across from you.
On the side of the blind spot, you may not be able to see the other person’s nose, upper lip, and lower eye. However, you can still see the person’s shoulders and the top of their head.
If a stroke has changed your central vision, you may not be able to see parts of a person’s face when they are standing in front of you. This “blind spot” occurs because the occipital pole is damaged by a stroke.
What is a blind spot?
When the occipital lobe of the brain is completely affected by a stroke, it can cause complete vision loss. This is called “cortical blindness”. This means that vision loss is caused by damage to the cerebral cortex.
Some stroke survivors know they can’t see, but others don’t. Some people are unaware of their blindness and experience visual hallucinations. This is called Anton syndrome or Balint syndrome.
Some occipital stroke survivors have a disease called vision Agnosia. This condition means that the brain ignores one side of the person’s vision.
There are other symptoms of an occipital stroke, including:
- optical illusion
- prosopagnosia (prosopagnosia)
- Inability to read but still write (dyslexia without agraphia)
Some stroke survivors don’t realize they can never see again. Others have had unusual things happening with their vision, such as seeing hallucinations or being unable to recognize the faces of people they know.
Visual Distortion Guide
The occipital lobe of the brain helps you see. If a stroke occurs in this part of the brain, it can change your vision.
For example, if a person is standing right in front of you, you may not be able to see his face. You may not be able to see things on one side of your body. Some people see things that don’t exist. Others go completely blind after a stroke.
Occipital lobe strokes are uncommon. However, other strokes can also cause vision changes.
If you are a stroke survivor, you may notice changes in your vision. Strokes in different parts of the brain can change your vision, but occipital lobe strokes almost always do.
If you have an occipital lobe stroke, you may not realize you have lost your vision. On the other hand, your vision may have changed a lot. These changes can be scary and will affect your life to a great extent.
It’s also important to know that sudden, drastic changes in vision could be a sign you’re having a stroke. If you suddenly cannot see or see anything unusual, seek medical attention right away.
Frequently Asked Questions
What does the occipital lobe do?
The occipital lobe allows visuospatial abilities and processing (comprehension of the surrounding environment), depth perception, distance, auxiliary visual abilities, color interpretation, face and object recognition, and memory formation. The role of the occipital lobe in these functions means that a stroke in this area can lead to partial vision loss, visual hallucinations or even complete blindness.
Where is the occipital region of the brain?
The occipital region of the brain is located at the back of the brain, below the parietal lobe. There is a fissure (deep groove) separating the two occipital lobes.
Coping after a stroke