![]() ![]() These symptoms can also be life-threatening. Various symptoms depend on the causes including drug use and poisoning. Some of the common symptoms include fixed, dilated, or unequal-sized pupils. In case of severe injury, the pupil may appear in unequal size. However, according to the studies, it might be a result of surgery, trauma, infection, or poor blood circulation.Ī dilated pupil can be a cause of any serious injury or occur out of other symptoms. The cause of Adie’s tonic pupil is still unknown. It generally involves making one of our pupils appear larger than the other and affects the ability of our pupils to react to the light. It is a rare neurological disorder, which can also be termed as Adie’s tonic pupil or tonic pupil. This condition is harmless and can get resolved after some time, making our pupil return to the original size and proper function without any medication or treatment. In addition to this, the problem can occur around two to three times per month. According to the studies, the average duration of this condition can be around 12 hours. Women having migraines are at a higher risk of developing benign episodic unilateral mydriasis. Benign episodic unilateral mydriasisĭuring this condition, a person may experience a series of sudden pupil dilation, along with blurred vision, headache, and eye pain. These may include LSD, Amphetamines, MDMA (Ecstasy), and Cocaine. Various other drugs can result in making our pupils appear dilated and decrease our eyes’ ability to react to the light. Although, these substances might not cause pupil dilation. Right after drug ingestion, the effect can last for around two hours. Drug ConsumptionĪccording to studies, alcohol and various drugs including marijuana are responsible for reducing the eye’s ability to react to the bright light source and adapt itself according to the change in light. Various eye surgeries such as corneal transplants and cataract surgery can lead to a problem where our iris can get damaged and cause pupil dilation. Eye InjuryĪn eye surgery is associated with causing serious damage to our iris and make our pupils appear dilated or irregular in shape. It can result in causing pupil dilation and may affect one or both eyes. An injury on the head, stroke, or brain tumour can affect the ability of our pupils to react to light. Atropine, which is used for controlling Myopia and other medical purposes.Botulinum toxin containing medications including Botox.Some of the medications either prescribed or non-prescribed can cause the problem of the dilated pupil or affect its overall ability to react to light. Some of them include: Certain medications It is also known as “ mydriasis” in medical terms.Ī wide variety of factors can cause dilated pupils. In several cases, our pupils can dilate without any change in the light. The muscles in the iris are responsible for controlling the size of the pupil. A dilated pupil remains responsive to any amount of light. in presence of bright light as well as dim light. It will remain dilated in both cases, i.e. If someone is suffering from the problem of pupil dilation, then his/her pupil will not react to the light. While in dim light, our pupil reacts by dilating or getting larger than its original size to allow more amount of light to enter the eye, so that we can properly see the objects and people hidden in the darkroom. In bright light, our pupil constricts or gets smaller than its original size to restrict a large amount of light from entering the eye. Pupil in the eye always reacts to the light. Generally, pupils are the opening that is controlled by the iris (the coloured part of the eye). ![]() The pupil is responsible for allowing the light to enter our eyes. The pupil is the round part of our eye that exists in the centre having a different eye colour but the generally black eye colour. ![]()
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