Why are my pupils so big

Answer

The most common reason for dilated pupils is low light in a dark room, since lower light causes your pupils to grow[4]. Pupils are supposed to dilate under normal circumstances due to light changes and emotional variables[2]. Dilated pupils can also be caused by various medical conditions including brain injury, eye injury, certain medications, benign episodic unilateral mydriasis, or drug use like MDMA (also called Molly or ecstasy)[4].

Additionally, certain prosthetic contact lenses may be used to improve the appearance of eyes as the result of varying pupil sizes caused by trauma[2]. If a medicine caused your pupils to dilate, they should go back to normal once the drug wears off[1]. In some cases, people with naturally large pupils may experience glares and halos following a LASIK procedure[10].

Treatment for mydriasis is determined by what caused the condition in the first place[6]. When mydriasis is caused by injuries to the brain and eyes, more intense treatments come into play, such as excess pressure in the eye caused by glaucoma[6]..

Websites

1. https://www.webmd.com/eye-health/why-are-pupils-dilated-mydriasis
2. https://my.clevelandclinic.org/health/symptoms/22238-dilated-pupils
3. https://www.aao.org/eye-health/ask-ophthalmologist-q/why-are-my-pupils-large
4. https://www.insider.com/guides/health/conditions-symptoms/dilated-pupils-meaning
5. https://www.optometrists.org/general-practice-optometry/guide-to-eye-health/conditions-that-affect-the-pupil/why-do-my-pupils-look-big/
6. https://www.medicalnewstoday.com/articles/321686
7. https://www.scientificamerican.com/article/pupil-size-is-a-marker-of-intelligence/
8. https://www.verywellhealth.com/dilated-pupils-5095929
9. https://www.healthline.com/health/dilated-pupils-love
10. https://www.verywellhealth.com/what-can-my-pupil-eye-size-tell-me-about-my-health-3421861

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