Simple speaking, the heat exhaustion will lead to anoxia with your brain and head. The impact of anoxia will lead to organ function's defect. The instant heat exhaustion will result to instant injury of your head and vision. The permanent one will lead to forever injury. It will cause the headache, faint and blur vision and sore eyes. But it will be recovered after the heat exhaustion's healing gradually, but the permanent one's risk still exists. If the symptom would last for a certain time without cure by itself, please go to doctor for help.
Blurred vision is an ocular symptom, which is easy to be caused by eye infection, inflammation, or injury, glaucoma and stroke or transient ischemic attack. Heat exhaustion is a heat-related illness that can occur after you've been exposed to high temperatures for several days and have become dehydrated. Heat exhaustion is easy to cause dry eyes that means tears in eyes are not enough. As we all known , tears have an effect on keeping the surface of eyes moist and flushing away foreign matters. If we are lack of them, dry eyes mat occur, and then blurry vision is easy to be suffered.
It maybe. Heat exhaustion is a types of heat-related illness. If you has been exposed to high temperatures for a period of time, it will become dehydrated and get heat exhaustion. Some people with heat exhaustion will experience, blurry vision, double vision and dizziness. Besides, some people even suffer fainting, headache, fatigue, nausea, muscle cramps as well ad profuse sweating. If you suffer heat exhaustion, you shall first try to low their body temperature and drink more water.