What is temporary blindness?

temporary blindness, also known as fleeting blindness, is a loss of vision that lasts only a limited period. Temporary blindness can be associated with many causes, from bright flashes of light to more serious health, such as increased brain pressure or optical nerves. People often consider temporary blindness to be worrying and can be problematic if its onset is sudden. People who run or participate in other activities that require a vision can put themselves and others in great danger if their vision is suddenly disturbed. Most people experience it to varying degrees at some point in their lives. The camera flash or the transition from the dark room to the light outside can often lead to lightning blindness. This is due to the pigments in the retina, which are responsible for the perception of light, become saturated or bleached. Blowns tend to lead to particularly serious flash blindness at night, when pupils are expanded, allowing large light to retorts.

There are many internal conditions unrelated to light, which can also lead to temporary blindness. Some conditions cause the accumulation of fluids in the brain; This can lead to pressure that affects the nerves and cavities that are necessary for vision. The blindness persists until such fluids are removed. In some individuals, migraines can also lead to temporary blindness.

psychological factors can in rare cases cause one to lose a vision for a period of time. This occurs in a time of serious emotional stress. This phenomenon is known as conversion - the brain converts a psychological problem into physical form.

Some heart problems and cardiovascular system can lead to temporary blindness. The Jedentak condition is an autopsy aorta in which a tear in the aortic wall causes blood to flow into the wall of the aorta. This changes some properties of blood that flows into the rest of the body and brain. As a result, the poor amount of oxygen reaches a crushThe brain that controls the vision, so the vision is lost.

There are some devices that are used to deliberately induce temporary blindness for defense or attack purposes. There are some explosives used by military and police forces that are specially designed to create brilliant flashes of light for blind enemies. Some individuals carry sprays such as pepper spray that causes blindness when applied to the attacker's eyes.