Dehydration is one of the most worrisome complications of diarrhea in children. Mild diarrhea usually doesn't cause significant fluid loss, but moderate or severe diarrhea can. Severe dehydration is dangerous; it can cause seizures, brain damage, even death. Know the signs of dehydration.
Symptoms & Signs. Dilation, or widening, of the pupils of the eyes is normal in conditions of low light in order to allow more light to reach the retina. Medically, dilation of the pupils is known as mydriasis. Specific medications known as mydriatics are administered to dilate the pupils for ophthalmologic examination.
It's important to remember that not all drugs will produce the same degree of pupil dilation. For example, MDMA will have a much more profound effect on pupil dilation than, say, an antidepressant. And interestingly, other drugs, like opiates, cause the opposite effect â pupil contraction, or what's known as miosis.