Sentences with phrase «constricting pupils»

Pilocarpine Hydrochloride Ophthalmic Solution 2 % is a sterile, miotic eye medication used in the treatment of canine primary glaucoma by constricting the pupils and thereby helping control intraocular pressure.

Or it could be that constricting its pupils improves the mock viper's vision, so increasing the accuracy of its defensive strike.

The experiments also revealed something else: pupil dilation in humans is not altered by viewing images of chimps with either dilating or constricting pupils, and vice versa.

Interestingly, the same applied to the chimpanzees: their pupils, too, dilated more slowly when they viewed a chimp with constricting pupils.

Other symptoms can include watering and redness of both eyes and constricting pupils.

If mice lacked this type of ipRGC, the only change Hattar could find was that the animals could no longer constrict their pupils.

In contrast to a fight - or - flight response, gearing the body up for action, a parasympathetic response slows heart rate and breathing and constricts the pupils.

It constricts the pupils of our eyes so we can focus on our attacker.

If you suspect that your cat has eaten mushrooms, and they experience symptoms such as slow or irregular heartbeat, drooling, constricted pupils, bleeding, low energy, and unsteadiness on their feet, take them to the vet's office immediately.

The signs and symptoms of nicotine poisoning in dogs and cats include: tremors, twitching, or seizures, drooling, constricted pupils, hallucinations (auditory and visual), excitement, racing heart (slower rate in small doses), vomiting and diarrhea.

Constricted pupils may also be a sign to back off, meaning your cat is feeling tense and potentially aggressive, but it can also be a sign of contentment.

Some older dogs will develop a weakness in the muscle in the iris that constricts the pupil.

Constricted pupils are referred to as miosis, while dilated pupils are called mydriasis.

Horner's Syndrome — drooping upper eyelid, constricted pupil and a sunken appearance to the eye — is seen on the same side as damage to nerve roots at T1 and T2.

These symptoms may progress to a difficulty in standing, weakness, convulsions, tremors, constricted pupils, teary eyes, slow heartbeat, and labored breathing.

Not exact matches

At these baby stages of development, the baby sleeps in its fetal position with the hands in fists, pupils dilating and constricting, and the eyes appearing crossed.

Amazingly, at thirty three weeks it's possible for your baby to make out shapes as their pupils have developed the ability to constrict and dilate.

Experimenting with mice, neuroscientists at Johns Hopkins Medicine report new evidence that the eye's iris in many lower mammals directly senses light and causes the pupil to constrict without involving the brain.

The dilation - adjustment happens more slowly if the other human's pupils are constricting.

The animal's pupil constricted.

The impulse starts with excitation of the left retina, then travels down the optic nerve to cells in the midbrain and brain stem, which excite neurons near both eyes that cause the pupils to constrict.

If only your left pupil had constricted, your doctor would know that the left retina, optic nerve, and brain stem were intact but that there was a problem somewhere between your midbrain and brain stem and right eye.

This infrared image of a Moken child's eyes underwater shows how much pupils can constrict.

Two, despite the animals» blindness, their pupils still constricted in response to ambient light, albeit at a slower rate than did the pupils of sighted mice.

When the parasympathetic system is active, the bowel and other non-muscle organs receive good blood - flow, the pupils constrict, and the glands all function well and secrete their various compounds.

(The pupil dilates mostly because it can't constrict.)

The drops work by opening the pupil and preventing the iris from constricting in response to light and are often used for routine examination and photography of the back of the eye.

Staring into a mirror, he couldn't see his pupils, which had constricted to faint pinpoints.

They constricted when the faces became harder to ignore, and the smaller they got, the better the monkeys performed in subsequent trials.Although there were strong relationships among the activity of the neurons, pupil size and the ability to ignore faces, the three measures were merely correlated, Platt said.

If your pet's pupils constrict when a bright light is focused on them, also retain some vision.

Noticeable decrease in vision, especially if sudden in onset or pupils that do not constrict in bright light.

Uveitis is painful and tends to cause the eye to become reddened and the pupil to constrict.

Shining a bright light into a dog's eyes to see if the pupils constrict is not by itself diagnostic.

Because of his Progressive Retinal Atrophy (PRA), his pupils never constrict.

The abnormal pupil can be either constricted or dilated.

One of smokeys pupils was fully constricted and she was squinting as if that eye was bothering her.

Well, it is a different sort of iris effect from that which was originally proposed: the pupil becomes more dilated with increased infrared rather than more constricted.