2. Occipital Stroke
As above, we human have four main lobes and each lobes perform it's function independently as serves a great role in one's living life. The four lobes are the frontal lobe, parietal lobe, temporal lobe and last but not least the occipital lobe. Lets narrow down our focus for a moment on the occipital lobe. What does it do? Well an occipital lobe controls the vision function and it is one of the main function in us for daily survival needs. A good vision aids in information processing and storage of the world around us and these informations navigate our day to day activities. Having an occipital stroke does spells out serious consequences to one's vision. Occipital stroke survivors will go through three type of damage stages which will be explained below.
So what does one should look for after having an occipital stroke? What are the visible symptoms that needs professional help immediately? Well the most important symptoms after an occipital stroke is decay of vision such as blurry vision, hallucinations and to the most extent which is blindness or also known as stroke blindness. The severity of these symptoms depends on the extent of the stroke damage and how much it affects the occipital lobe, whether it covers an entire lobe or just a portion of it.
An occipital stroke that affects the occipital lobe of one side of the brain is scientifically known as homonymous hemianopia and this where the affected person is unable to to view objects on the opposite side of vision capability. For an example, a person is seated infront of two objects; apple on the left and a box on the right. If the occipital stroke damaged the left side of the brain, this person can only see and indentify the apple which is placed on the left and not the box on the right (opposite side of damage region).
Another major area of hit would be the occipital pole, which is in the central region of our vision. This occipital pole is vital in processing visual inputs form a straight vision. Hence defect on this area would have a significant impact and lose of sight towards anything that is situated on the central vision or straight vision. Blind spot appears sinus pain no congestion here and is commonly known as the central visual defect. On the other hand, another severe effect of the occipital stroke is where the damage covers the entire two sides of the brain and this unfortunately leads to stroke blindness. A stroke blindness is where one has lost complete visual ability, not even rays of light can be seen. This can be hard to accept to the occipital stroke sufferers as is is an unpredicatable phenomena that requires experts intervention.