What are dilated pupils?

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person with expansion pupils is easily recognizable because his pupils will seem larger than usual. Pupils are dark circles placed in the middle of the eye. The pupil is surrounded by an iris, a colored membrane of the eye. Attached to the iris are muscles that control the size of the pupil. When these muscles attract the iris, the pupils dilate.

The main purpose of pupils is to let the eye pass. Pupils expand and close according to the amount of light needed. When light is limited or dark, the eyes naturally spread in an effort to allow more light to flow. If pupils remain widespread in bright light, it could be a sign that may require medical attention.

Leandic when pupils are widespread if they were not normally, the condition is referred to as mydriasis. The expansion pupils themselves are not a serious condition. If the eyes have been exposed to light for too long during dilation, the hall can damage the vision of a person.

In addition, it is possible that dilatation is a symptom of more serious medical PRrounded, including life -threatening conditions such as bleeding, brain tumors, aneurysm or hematomas. The ingestion of toxic chemicals or many types of drugs and drugs can also cause pupils' dilation. The diagnosis of the cause of heavily extended pupils requires an eye test as well as a physical and neurological test.

Trauma

trauma of the head or trauma to the eye can cause expansion pupils. After injury, Iris can be affected, causing the pupil to normally not destroy. The state called Adie's tonic pupil syndrome can also affect pupils to dilatate. This condition, mostly affecting young adult women, causes pupils to react more slowly than usual to light.

drugs, including antihistamines and antidepressants, can affect pupils' dilation. Some drugs, drought as psychedelic, including LSD and marijuana, and psychostimulants such as amphetamines and methamphetamine can cause expansion pupils. In addition, it can also get out ofNarcotics.

Sometimes the eyes are deliberately, usually when the individual goes to the eye test. During the visit, the doctor often places medicinal drops called mydriatics in the eyes. The drug forces the eyes to dilateat, allowing doctors to look better on the retina and Iris, as well as to see how the eyes react to light.