![]() Emergency medical responders carry pupil gauges to measure pupil size.Red eyes are the result of the camera flash bouncing off the retina, back out of the eye and into the camera lens.If both pupils are dilated, it is usually due to drugs, not disease.Pupils can miss the mark immediately they will shrink down and then reopen slightly.It takes longer for a pupil to dilate than constrict.Most of the light entering the eye does not escape, which is why the pupil appears black.Significant or possible causes for lack of reactivity in pupils include: Adie’s Syndrome (light response slower in one eye possibly due to a mechanism malfunction).Significant or possible causes of unequal pupils include: Seratonin Syndrome (a toxic reaction to serotonin).drugs such as antipsychotic agents, atropine, cocaine.Significant or possible causes of dilated pupils include: uveitis (inflammation of the inner eye). ![]() pancoast tumor (carcinoma of the lung apex).Horner Syndrome (damage to the sympathetic nervous system serving the eyes).drugs such as Heroin, Fentanyl, Codeine, Tramadol and other narcotics.Pupil AppearanceSignificant or possible causes of constricted pupils include: Drugs are often the first suspect in any pupil changes where there has been no trauma and no history of an existing illness. What happens in one eye should also happen in the other, giving a bilateral reaction.ĭrugs are by no means the single factor of pupil change, but depending on the type of drug involved they can cause pupils to constrict, dilate, or show a lack of reactivity. If extra light is supplied, both pupils should constrict and if surroundings become darker, both pupils should dilate, equally. In normal circumstances, pupils should be neither large nor small, but average. In this case, it isn’t only the size of the pupils that are noted but their reactivity and equality too. Pupil Changes Caused By Medical ConditionsMedical caregivers examine pupil size because they can be directly correlated to health conditions. Pupil sizes can portray the following emotions: Pupils have an involuntary reflex but they can and do react to emotional states. The retina converts the light into nerve impulses which travel to the optic nerve and then directly to the brain, allowing a person to see. Essentially the role of the pupil is to adapt and change size to allow the maximum amount of light into the retina without causing damage. The PupilThe pupil of the eye resembles a black hole that can constrict (close), or dilate (open), in response to various factors. The eyes may be the windows to the soul, but just the pupils can reveal plenty of information for diagnosis purposes. Vitals are not just numbers they reflect a patient's well-being and show changes in circumstances, often particularly important ones. The importance of these signs is self-evident to the medical world they are the clues to a condition, an attribute of life and once in decline, a harbinger of death. Taking a set of vitals is standard procedure for all medically trained caregivers and while patients rarely give it a second thought, health professionals love vital signs.
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