Stroke
A stroke does not always mean a partial or complete disability of the body. Sometimes, a blood clot affects the part of the brain that is involved in optical functions. However, it is more common for blurry vision to come with common stroke symptoms such as face drooping, weakness in the extremities, confusion, severe headache, sudden numbness, dizziness, and loss of balance and coordination.
When a stroke happens, there is a high likelihood that some parts of the brain become temporarily or permanently damaged. The lack of blood flow to the occipital lobe and brainstem, for example, can cause cell death in these areas and lead to blurry vision and balance issues and the possibility of blindness.
Vision issues commonly happen after someone suffers a stroke. A 2019 research by University of Liverpool researchers shows that around 60% of those who survived a stroke developed visual impairment. The study suggests that blurred vision after a stroke may persist and is indicative of the reduction of arterial circulation and relative ischaemic hypoxia affecting the brain’s anterior part of the visual functions.
