What are the symptoms of carotid artery stenosis?

The symptoms may be seen as visual changes including blurred vision or loss of vision, especially in one eye. The patient may present with weakness on one side of his/her body. It may only involve one part of that side, such as a hand or a foot. Some patients may present with seizures or severe headaches. Interestingly, most people will not have symptoms at all despite having a very tight blockage in one of their carotid arteries. This is why patients are often screened for this disease.