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Contamination with - or excessive exposure to - certain chemicals including: nerve agents, (e.g., sarin, VX, Novichok agents). organophosphorus insecticides (e.g., parathion, aldicarb) nicotine poisoning can be thought of as a subset of cholinergic crisis, as it also involves excessive parasympathetic stimulation. [5]
Rhinorrhea is also associated with shedding tears (lacrimation), whether from emotional events or from eye irritation. When excess tears are produced, the liquid drains through the inner corner of the eyelids, through the nasolacrimal duct, and into the nasal cavities. As more tears are shed, more liquid flows into the nasal cavities, both ...
A related medical term is lacrimation, which also refers to the non-emotional shedding of tears. Various forms of crying are known as sobbing , weeping , wailing , whimpering , bawling , and blubbering .
Tears, from the lacrimal glands, collect in this sac during excessive lacrimation. The fluid then flows through the nasolacrimal duct and into the nasopharynx. This drainage results in what is commonly referred to a runny nose during excessive crying or tear production. Injury or fracture of the lacrimal bone can result in posttraumatic ...
Other symptoms can include photophobia, excessive lacrimation, fever, and reduced corneal sensitivity. The syndrome is classically caused by the spread of an infection into the petrous apex of the temporal bone.
Patients with glaucoma often initially have no symptoms; later, they can exhibit excessive tearing (lacrimation) and extreme sensitivity to light (photophobia). On ophthalmologic exam, a doctor can detect increased intraocular pressure, distortion of the optic disc , and corneal edema , which manifests as haziness.
more, excessive, multiple Greek πλεῖον (pleîon), more pleiomorphism: pleur-of or pertaining to the ribs Greek πλευρᾱ́ (pleurā́), rib, side of the body Pleurogenous-plexy: stroke or seizure Greek πλήσσω, πλήσσειν (plḗssō, plḗssein), to strike or smite Cataplexy: pne-, pneum-air, breath, lung
Causes of epiphora are any that cause either overproduction of tears or decreased drainage of tears, resulting in tearing onto the cheek. [2] This can be due to ocular irritation and inflammation (including trichiasis and entropion) or an obstructed tear outflow tract, which is divided according to its anatomical location (i.e., ectropion, punctal, canalicular or nasolacrimal duct obstruction).