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Mydriasis is the dilation of the pupil, usually having a non-physiological cause, [3] or sometimes a physiological pupillary response. [4] Non-physiological causes of mydriasis include disease, trauma, or the use of certain types of drugs.
The tapetum lucidum reflecting green in the pupils of a cat Cat eyes stand out. Cats have a tapetum lucidum, which is a reflective layer behind the retina that sends light that passes through the retina back into the eye. [1] They also have a high number of rods in their retina that are sensitive to dim light. [2]
Cat eyes are similar to brass knuckles but in the shape of a cat face, with sharp and pointy ears that act like small daggers to stab or gouge. People slip their fingers through the spaces of the ...
An alert cat at night, with pupils dilated and ears directed at a sound. Outdoor cats are active both day and night, although they tend to be slightly more active at night. [90] Domestic cats spend the majority of their time in the vicinity of their homes, but they can range many hundreds of meters from this central point.
Dilation and constriction of the pupil. Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve.. A constriction response (), [1] is the narrowing of the pupil, which may be caused by scleral buckles or drugs such as opiates/opioids or anti-hypertension medications.
"Cat eyes" according to TSA, are weapons designed to look like cats that would fall in a similar category as brass knuckles. 'Cat eyes' banned: TSA urges passengers to keep weapons out of carry ...
The cat was very thin. The grey-furred feline didn’t want to be touched and was in terrible shape. Not only was she clearly dehydrated, she also had two ruptured eyes.