Although the eyes, nose and throat nerves are interlinked, you will get the blurry vision after the serious cough. You'd better go to see the doctor and have a check on the eyes. If there is the problem for your eyes, you'd better go to accept the treatment as soon as possible.
Many people experienced seeing bright spots in vision. And there are many causes of seeing bright sports as follows:
1. It can be caused by eye diseases, such as chorioditis.
2. Inflammation also can cause see some bright sports in vision, such as fever.
3. Degeneration of the vitreous humor also can cause it, especially for the old people.
But you do not need to worry about it until there are some severe symptoms that are associated with the bright spots.