Dilated pupils in children are also quite common. There may be very many causes of dilated pupils but neurological problems are the most common cause of the same. Uneven dilated pupils may be a sign of a serious condition which may be life-threatening if not treated in time. Usually a dilated pupil is caused due to a stimulus to light, wherein the pupils constrict when light brightens and dilates when light dims. Pupils dilate to allow for more light to enter the eyes, so that one is able to see objects even in a poorly lit area. However, if one wants to know what causes dilated pupils other than the natural cause, one must be enlightened with the fact that pupils always dilated may have other causes. Emotions such as fear, anger, sexual orgasm and attraction may also fall under the category of naturally induced causes of dilated pupils. Dilated pupils ecstasy is also a cause of ecstasy and overexcitement that one may experience while having a strong libido. The basic reason cited behind the constant dilated pupils is the release of oxytocin. The opposite of dilated pupils is known as Miosis. Some of the other reasons for dilated pupils may include neuropathic disorders, trauma, medications and drugs, poisoning, any kind of injury or the spinal cord that may give rise to neurological problems.