Pupil dilation is when the pupil located in the middle part of our eye is larger than normal. Under normal conditions , the size of our pupil grows in low light and shrinks in bright light, depending on the amount of light coming into our eyes.
The reason for this is to ensure that the appropriate amount of light enters our eyes. Accordingly, in bright light our eyes are between 2.0 and 4.0 mm, and in the dark they are between 4.0 and 8.0 mm. In some cases, it is detected in different situations that cause the pupil to dilate . Sometimes a fixed dilated pupil occurs, and in this case the eye begins to not react to light at all.
Conditions That Cause Pupils to Dilate
Large pupils can occur for many reasons. The most important situations that cause pupils to dilate are as follows:
- Antihistamines, Tricyclic antidepressants, Decongestants, anti-nausea medications, motion sickness medications, anti-seizure medications, medications for Parkinson’s, Atropine medications cause pupil dilation.
- Your pupils may dilate as a result of a serious eye injury.
- Brain damage and brain-related diseases. Particularly because the brain tumor affects the way your eyes respond to light, your pupil dilates.
- Drugs used for recreational purposes.
- Benign episodic unilateral mydriasis is an eye enlargement problem that usually occurs in people who have migraine attacks.
- Adie pupil disease is a rare neurological disorder that causes the pupil to dilate .
- Congenital aniridia is when a person is born with a partially or completely missing iris.
- Some of the drops used during an eye examination also cause pupil dilation , which usually resolves within a few days.
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What Can Be Done About Pupil Dilation Problem?
The problem of large pupil and enlargement of the pupil is usually a temporary condition and will go away after you wait a while. However, in some cases it may occur as an indication of a particularly serious condition.
If you notice dilated pupils , especially after a head injury, you must seek immediate medical attention. Apart from head trauma, medical help should also be sought if it is accompanied by symptoms such as headache, dizziness, balance problems and confusion. It is recommended that you see an ophthalmologist and, if necessary, a neurologist for the treatment of pupil dilation .
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