Thus light different pupil. Medical search. Frequent questions

A brighter light will cause more constriction. (allnurses.com)
If, after shining a light in one eye, the light is quickly switched to the other eye, the response will be an initial constriction of both pupils followed by an equivalent re-dilation. (allnurses.com)
We quantified the pupil constriction and the poststimulus response amplitudes during dark (PIPR) and light (poststimulus pupil response, PSPR) adaptation. (edu.au)
Increasing the prestimulus duration and irradiance of adapting lights increased the pupil constriction amplitude when normalized to the dark-adapted baseline but reduced its amplitude when normalized to the light-adapted baseline. (edu.au)
Correlations between millimeter pupil constriction and PIPR amplitudes were eliminated when normalized to the baseline diameter. (edu.au)
Light and dark adaptation have opposite effects on the pupil metrics, which should be normalized to baseline to minimize significant correlations between constriction and PIPR amplitudes. (edu.au)
There is larger pupil constriction evoked by a bright stimulus when the stimulus location spatially overlaps with the locus of attention, and these effects have been extended to saccade planning and working memory (here referred to as pupil local-luminance modulation). (tmu.edu.tw)
In the visual-delay task, larger pupil constriction was observed when the patch location was spatially aligned with the target location in both stimulation conditions. (tmu.edu.tw)
More interestingly, after FEF stimulation, larger pupil constriction was obtained when the patch was presented in the contralateral, compared to the ipsilateral visual field of the stimulation. (tmu.edu.tw)
Linear mixed model results further found that stimulation condition, patch location consistency, and visual field significantly modulated observed pupil constriction responses. (tmu.edu.tw)
Pupil size variation was due to active constriction by the parasympathetic pathway of the nervous system, which regulates homeostasis and the body at rest. (discovermagazine.com)

Light Pupil Dilate was an American rock trio from Atlanta, Georgia that formed in 2001. (wikipedia.org)
Cascades (Vert Records, 2003) Snake Wine (Lifeforce Records, 2007) Patrick Stephen Patterson, Lifeforce signs Light Pupil Dilate. (wikipedia.org)
Light Pupil Dilate signs with Lifeforce Records Archived 2007-09-27 at the Wayback Machine. (wikipedia.org)
Kevin Forest Moreau, Light Pupil Dilate Sizes Up its D-I-Y Cred. (wikipedia.org)
Pupils get larger (dilate) in dim light and smaller (constrict) in bright light. (merckmanuals.com)
Did a provider recently dilate your pupils? (medlineplus.gov)
For instance, when you enter a dark room, your pupils will naturally dilate (get larger) to adjust to a low-light environment. (allaboutvision.com)

It is very helpful for you to measure the pupil dilation and length on using these medical penlights. (trumpforest.com)
In other words, mydriasis is a temporary dilation of the pupils in response to light. (allaboutvision.com)

In particular, sector palsy and anisocoria exceeding 1 mm (in the light) were seen much more commonly in Holmes-Adie patients than patients with generalised neuropathy. (nih.gov)
Unequal pupil size is called anisocoria. (merckmanuals.com)
Physiologic anisocoria is pupils that are naturally different in size. (merckmanuals.com)
Unilateral cases, where only one pupil is dilated and fixed, is known as anisocoria , meaning unequal pupil size. (allaboutvision.com)

His pupils started out equal but became unequal. (allnurses.com)
If pupil sizes are very unequal, a person may notice the discrepancy. (merckmanuals.com)
More often, unequal pupils are noticed only during a doctor's examination. (merckmanuals.com)
Unequal pupils themselves usually cause no symptoms, but occasionally a person may have trouble focusing on near objects. (merckmanuals.com)
These more noticeable symptoms are often the reason people seek medical care rather than the unequal pupils. (merckmanuals.com)
Eye disorders that cause unequal pupils include birth defects and eye injury. (merckmanuals.com)
Inflammation of the iris (iritis) and certain types of glaucoma cause unequal pupils, but this finding is usually overshadowed by severe eye pain. (merckmanuals.com)
You have pupils of unequal size (one pupil is larger/smaller than the other). (allaboutvision.com)

That action, referred to as pupillary light reflex, is controlled by opposing dilator and sphincter muscles in the iris. (jhu.edu)
However, other researchers offered the alternative explanation that there might be light-sensitive nerve fibers containing melanopsin present on the sphincter muscle that make the muscle contract by piggybacking on the brain's pupillary light reflex circuitry involving acetylcholine. (jhu.edu)
The broad picture," Yau says, "is that the local pupillary light reflex appeared early in primitive vertebrates such as jawless fish, even before the brain got involved. (jhu.edu)
It's the local light reflex's absence in human beings that allows doctors to quickly evaluate whether a comatose patient is brain-dead by checking his or her pupillary light reflex. (jhu.edu)
Hey I Know This Probably Sounds Like A Stupid Question We Are Learning About Pupillary Reactions Perla How Will The Pupils React To Light If Someone Is Blind In One Eye? (allnurses.com)
Pupil size is governed by the tone of the pupillary sphincter (parasympathetic) and the pupillary dilator muscles (sympathetic) in response to ambient light, adrenergic tone, and local pharmacologic or pathophysiologic conditions. (allnurses.com)
In pseudophakic pupillary block, the implanted intraocular lens (IOL) is partly or wholly involved in the obstruction of the aqueous flow through the pupil. (medscape.com)
Pseudophakic pupillary block also can occur in patients with anterior chamber IOLs, either by direct blocking of the pupil by the optic or by the development of adhesions between the vitreous and the posterior iris. (medscape.com)
Pupillary block can occur if the peripheral iridectomy and the pupil close by the above factors and one of the following is used: an IOL in the anterior chamber, an angle-supported lens, or an iris claw (Artisan) lens. (medscape.com)
In the pupillary area, the initial adhesions are formed between the pupil and the posterior capsule. (medscape.com)
Closure of peripheral iridectomy, lens decentration, partial pupil capture, and adhesions between the optic and the iris have produced pupillary block. (medscape.com)

If you're looking for the best pupil pen light of 2023 , we've got your back. (trumpforest.com)

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. (jhu.edu)
Sure enough, even after blocking the action of acetylcholine pharmacologically, the isolated iris sphincter muscle still contracted in response to light, adding confidence to the notion that the muscle is itself light-sensitive because it contains melanopsin," Yau says of the present work. (jhu.edu)
Pupil is a hole in the middle of the iris, which appears black because the light that passes through it, gets absorbed by the retina and is not reflected back. (tutorialspoint.com)
Its function is to control the amount of light entering the eye with the help of the iris so that it can be focused on the retina to begin the process of sight. (tutorialspoint.com)
The opening at the center of the iris that allows light to enter the eye. (aao.org)
Are there beings or people among us whose sclera, pupils and iris are completely BLACK? (rense.com)
These glossy finished eyes have a light purple iris and black pupil color with a shank back fitted for a washer to hold in place. (gurumisupply.com)
The opening in the center of the iris that appears as a black dot and through which light enters the eye. (preventblindness.org)
The block is caused via mechanical closure of the pupil by the optic of the pseudophakos or by the development of synechiae between the iris and the artificial lens or remaining lens capsule. (medscape.com)

The traditional view of this reflex is that light triggers nerve signals traveling from the eye's retina to the brain, thereby activating returning nerve signals, relayed by the neurotransmitter acetylcholine, that make the sphincter muscle contract and constrict the pupil," says King-Wai Yau, Ph.D. , a neuroscientist at the Johns Hopkins University School of Medicine and an author of the report. (jhu.edu)
Shining a light in one eye of a normal subject causes both pupils to constrict equally. (allnurses.com)
Shining a dim light in one eye of a normal subject will cause both puils to constrict. (allnurses.com)
Often, the larger pupil is unable to constrict normally. (merckmanuals.com)

Pupils were equally reactive changes. (cdc.gov)
The pupils were equal in size and slowly reactive to light. (who.int)

If one pupil consistently looks larger than the other , or if you're concerned about your child's pupil reaction , see a pediatric ophthalmologist for evaluation. (aao.org)
blood pressure 110/70 mm Hg, pulse were 5 mm equal bilaterally with a 120 beats/min, respiratory rate sluggish reaction to light. (cdc.gov)

A blown, or blown out, pupil is characterized by a pupil that is largely dilated and unresponsive to light. (allaboutvision.com)
The left pupil, though was mid-dilated and unresponsive to light. (bvsalud.org)

Abstract- Objective: Recently, pupil oscillation synchronized with a steady visual stimulus was employed for an input of an interface. (ieee-dataport.org)
Methods: Pupil responses were compered between (1) the left and right eyes were stimulated with different frequencies and mixed in the participant's nerve, and (2) signals with different frequencies were mixed in advance and given to both eyes as a common stimulus. (ieee-dataport.org)
Blown pupils are dilated very widely and fixed, meaning they do not respond to an outside stimulus, such as light. (allaboutvision.com)
In Experiment A, light adaptation was studied using short wavelength lights ranging from subthreshold to suprathreshold irradiances for melanopsin signaling that were presented before (5-60 seconds) and after (30 seconds) a melanopsin-exciting stimulus pulse. (edu.au)
Pupil light reflex responses were transiently evoked by a bright patch stimulus presented during the delay period in the visual- and memory-delay tasks. (tmu.edu.tw)

Here, we propose a signal mixture method for stimulation with different frequency patterns to increase ITR of the interface based on pupil oscillation. (ieee-dataport.org)
You can measure sleep by measuring the oscillation in the pupil," says Huber. (discovermagazine.com)

We determine the effect of short-term light adaptation on the pupil light reflex and the melanopsin mediated post-illumination pupil response (PIPR). (edu.au)
The pupil constricts in response to an increase in global luminance level, commonly referred to as the pupil light reflex. (tmu.edu.tw)

PUPIL GAUGE PRINTED: This has an imprinted pupil gauge chart printed on this product for easy assessment and accuracy at a glance. (trumpforest.com)

For telescopes, the optical diameter (also known as aperture) is the size of a telescope's main light-collecting lens or primary mirror, measured in millimeters or inches. (telescope.com)
The pupil changes it's diameter in order to control the amount of light entering the eye. (ferris.edu)
The CSV files recorded the pupil diameter [mm] of the left eye. (ieee-dataport.org)
The 56mm objective lens diameter and illuminated reticle option guarantee aiming accuracy, even in the most unfavorable low-light conditions. (zeiss.com)
The diameter of the pupil decreases according to age, with subsequent reduction in the light transmitted by the lens. (cdc.gov)

(a) What happens to the size of pupil of our eye (i) in dim light (ii) in bright light? (tutorialspoint.com)
Certain medications can also affect pupil size. (aao.org)
Normal Pupil Size for Perrla is 2 to 6 mm and round. (perrlaeyes.com)
Normal pupils must have the same size bilaterally. (perrlaeyes.com)
Usually both pupils are about the same size and respond to light equally. (merckmanuals.com)
People who notice a sudden, unexplained change in pupil size should see an eye care provider, especially if only one pupil is affected. (allaboutvision.com)
You notice a sudden, unexplained change in pupil size. (allaboutvision.com)
They found that pupil size fluctuated wildly, but predictably, during sleep. (discovermagazine.com)
From this experiment, the researchers also found that other bodily rhythms, such as the heartbeat, can be predicted from pupil size in sleep. (discovermagazine.com)

In bright conditions, the pupil shrinks or constricts to limit light entering into the eyes, so that too much light can't cause glare and discomfort to the eye, and even can't damage to the lens and retina of the eye. (tutorialspoint.com)
Refractor telescopes refract, or "bend" incoming light to a focus by means of an objective lens. (binoculars.com)
Cassegrain telescopes, such as Maksutov-Cassegrains, "fold" incoming light using two mirrors and a front "corrector" lens. (binoculars.com)
This material must be crystal-clear to permit the unobstructed passage of light from the rear of the lens to the retina. (rense.com)
Either of the following can push the lens optic firmly against the pupil, effectively blocking the forward movement of the aqueous and causing partial or complete pupil capture: the shallowness of the anterior chamber due to a wound leakage or pooling of aqueous in the vitreous pushing the lens optic forward. (medscape.com)

If tracked during the day, the pupil will not only respond to changes in external stimuli such as light, but also to internal conditions such as attention and emotional states. (discovermagazine.com)

The cornea provides most of the power necessary for focusing light onto the retina. (ferris.edu)
Farsightedness occurs if your eyeball is too short or the cornea has too little power, so light entering your eye is focused behind the retina, instead of directly on the retina, causing blurred vision. (ferris.edu)
Nearsightedness occurs if your eyeball is too long or the cornea is too powerful, so the light entering your eye is focused before the retina, instead of directly onto the retina, causing blurred vision. (ferris.edu)

Instead, Yau's lab found that even when isolated, the sphincter muscle contracts in response to light, employing a light-sensitive pigment called melanopsin. (jhu.edu)
In Experiment B, colored prestimulus adapting lights were univariant for melanopsin or rod excitation. (edu.au)
Light adaptation at irradiances suprathreshold for melanopsin activation increased the PIPR amplitude, with larger changes at longer adaptation durations, whereas the PSPR amplitude became more attenuated with increasing irradiances, independent of duration. (edu.au)

Our work has focused on the visual benefits of vertical and horizontal pupils in mammals and snakes. (rawstory.com)
The pupil of the eye fluctuates and varies a lot in humans and many mammals. (discovermagazine.com)

the smaller pupil is unable to widen. (merckmanuals.com)
An eye specialist will place special drops in your eyes to widen your pupils. (cdc.gov)

(b) Name the cells on the retina of an eye which are sensitive to (i) bright light (ii) dim light (iii) sensation of colour. (tutorialspoint.com)
In low-light conditions, the pupil expands or dilates, so that more light can reach the retina to improve night vision. (tutorialspoint.com)
The retina of our eye contains a large number of light-sensitive cells that respond to light. (tutorialspoint.com)
This irregular shape prevents light from focusing properly on the retina. (ferris.edu)
This offers a better view of the back of your eye, where a thin layer of tissue (the retina) changes light into signals that go to the brain. (cdc.gov)
In the same way a laser light can damage the retina of the eye before the pupil can naturally contract to protect it, impulsive noises "sneak up" on the ear and pass through to the inner part of the ear causing permanent damage before the middle ear bones stiffen up and provide natural protection. (cdc.gov)

However, significant differences were found in the prevalence and magnitude of several pupil variables in the two patient groups. (nih.gov)

Regardless of aetiology, the patients generally had pupil signs typical of pupillotonia (small dark diameters, large light diameters, tonic near responses, attenuated light responses with light-near dissociation, and sector palsy). (nih.gov)
Through applying continuous theta-burst transcranial magnetic stimulation over the right FEF (and vertex) to inhibit its activity, we investigated the role of the FEF in human pupil local-luminance responses. (tmu.edu.tw)
Together, our results constitute the first evidence of FEF modulation in human pupil local-luminance responses. (tmu.edu.tw)

The mammalian eye adapts to changing light conditions by constricting or enlarging the pupil. (jhu.edu)
This rhythm adapts our bodies to a 24-hour cycle of light and dark. (norwegianscitechnews.com)

There are pupil gauge and a 5cm-ruler on the side of the penlight. (trumpforest.com)
Printed on the side of each Portable Penlight is labeled with a pupil gauge, convenient for sizing pupils. (sosproducts.com)

Thus, people with nervous system disorders that affect the pupil often also have a drooping eyelid, double vision, and/or visibly misaligned eyes. (merckmanuals.com)

In a report in the June 19 issue of the journal Current Biology , Neuroscience Professor King-Wai Yau and colleagues detail how the pupils in a mouse's eyes get smaller when the animal is moved from a dark to a lit room even when the nerve connections between the animal's brain and eyes are severed. (jhu.edu)
Their findings prove that mouse eyes have a photosensitive function built directly into the ring of sphincter muscle surrounding the pupil. (jhu.edu)
(i) in dim light $-$ it becomes large so as to accommodate more light in the eyes. (tutorialspoint.com)
Children with light-colored eyes tend to have noticeably larger pupils. (aao.org)
Some people have 'floaters' in their eyes, which are minerals or crystals and may cause strange glints of light when in a brightly lit area. (rense.com)
When it occurs, a fixed dilated pupil may be present in one or both eyes. (allaboutvision.com)
The largely dilated pupil may affect one eye (unilateral) or both eyes (bilateral). (allaboutvision.com)
But look at their eyes - where wolves have rounded pupils like humans, foxes instead have a thin vertical line. (rawstory.com)
In contrast, horizontally elongated pupils are nearly always found in grazing animals, which have eyes on the sides of their head. (rawstory.com)
We produced a computer model of eyes which simulates how images appear with different pupil shapes, in order to explain how orientation could benefit different animals. (rawstory.com)
So we rechecked the data on animals with frontal eyes and vertical pupils and found that 82% are what is considered "short" (which we defined as having a shoulder height of less than 42cm) compared with only 17% of animals with circular pupils. (rawstory.com)
We found that eyes of goats, deer, horses, and sheep rotate as they bend their head down to eat, keeping the pupil aligned with the ground. (rawstory.com)
How our eyes can register the light which passes through the pupil. (lu.se)

During NREM sleep, researchers found, the pupil appears smaller during deeper sleep stages and widens during lighter sleep. (discovermagazine.com)

Goats, sheep, horses, domestic cats, and numerous other animals have pupils which vary from fully circular in faint light to narrow slits or rectangles in bright light. (rawstory.com)
Additionally, conventional NIR detectors do not support Time Delayed Integration (TDI) mode needed on a rotating spacecraft to integrate the faint light of stars as they cross the focal plain. (lu.se)

Bilateral tonic pupils: Holmes Adie syndrome or generalised neuropathy? (nih.gov)
To compare the pupil signs in patients with bilateral pupillotonia caused by Holmes-Adie syndrome or generalised peripheral neuropathy. (nih.gov)

ESSENTIAL FAMILY KIT🔦 These reliable pen lights can help you check your children's or pets' throats, ears &noses, giving your family members the best personal care. (trumpforest.com)
It's very common for children's pupils to appear larger (more dilated) than those of adults. (aao.org)

the entrance pupil is at a flat folding mirror in front of the primary instead of on the primary mirror itself. (lu.se)

Conclusion: In the case of stimulation (2), the beat frequency, which is the difference between input frequencies, contaminated the pupil response signal. (ieee-dataport.org)

1. Rods - They are most sensitive to light and dark changes, hence function better in low light conditions (twilight vision) and get bleached quickly in bright light. (tutorialspoint.com)
ZEISS T* coating is a guarantee of the brilliant, high-contrast images-- which you will experience above all in adverse light conditions and in the twilight. (zeiss.com)

For example, medicine used to treat ADHD as well as certain sweat blocking medicines can stimulate pupils to enlarge. (aao.org)

Typically blown pupils occur as a response to a brain injury, such as head trauma or stroke. (allaboutvision.com)

Light regulates such things as our sleeping patterns, body temperature and levels of stress hormones In other words, daylight is crucial to ensuring that our diurnal rhythm works as it should. (norwegianscitechnews.com)

Multiple new floaters or floaters that are accompanied by flashing lights or a curtain of vision loss can signal a retinal tear or inflammation inside the eye. (aao.org)
Inner and outer retinal photoreceptor contributions to the dark-adapted pupil response were estimated. (edu.au)
To achieve the same retinal performance, the old eye requires more light. (cdc.gov)

RSVP stands for: redness, sensitivity to light, vision change and pain. (aao.org)

Therefore, they function better in bright light conditions (daylight vision), and require more photons of light to become activated. (tutorialspoint.com)
Under normal conditions, the pupils remain equal at all times in all levels of light. (allnurses.com)
Light conditions are very important to children at school who spend a lot of their time indoors. (norwegianscitechnews.com)
Moreover, conditions in Scandinavia are such that their exposure to blue light in the mornings is reduced during the long winter months. (norwegianscitechnews.com)
Get medical help right away if your pain is moderate to severe, even in low-light conditions. (medlineplus.gov)
Fixed, dilated pupils can be a sign of serious, life threatening conditions and should be treated as a medical emergency. (allaboutvision.com)
This is particularly useful for animals that are active both day and night, allowing for much better vision in low light conditions. (rawstory.com)
This problem usually arises only under threshold conditions when the amount of light available is small. (cdc.gov)
According to available evidence, the eye of a 60 year old individual requires about three times the amount of light needed by the eye of a 20 year old person, under threshold conditions. (cdc.gov)
In normal conditions, the amount of light available is sufficient. (cdc.gov)

Although research in monkeys has further elucidated a central role of the frontal eye field (FEF) and superior colliculus in the pupil local-luminance modulation, their roles remain to be established in humans. (tmu.edu.tw)

For instance, a domestic cat can change its pupil area by a factor of 135 from fully dilated to fully constricted, whereas humans, with a round pupil, can only change area by a factor of 15. (rawstory.com)

Another scientific study [1] found that classrooms with large windows were associated with between 15 and 23 percent of the improvement in pupils' exam results. (norwegianscitechnews.com)

Binoculars with larger objective lenses collect more light, which increases image resolution and brightness. (telescope.com)
Binoculars with larger objective lenses are recommended for low light situations, and binoculars with at least 50mm or larger objective lenses are recommended for pleasing astronomical observations at night. (telescope.com)

The pupil is the black center part of the eye. (merckmanuals.com)

How photons (light) are formed in distant stars and nebulae. (lu.se)

Telescopes with larger optical diameters collect more light, which leads to an increase in brightness and image resolution compared to smaller instruments. (telescope.com)

However, if the only reason for elongated pupils was to control the amount of light entering the eye, the orientation would not be important: horizontal, vertical, or diagonal would all offer the same advantages. (rawstory.com)
Instead, the pupils are almost always horizontal or vertical, which suggests there must be other benefits which explain this orientation. (rawstory.com)
Having a horizontal pupil enhances the amount of light they can receive in front of and behind them while reducing the amount of light from above and below. (rawstory.com)
The horizontal pupil also enhances the image quality of horizontal planes and this enhanced view at ground level is also an advantage when running at speed to escape. (rawstory.com)
If horizontal pupils are such an advantage to grazing animals, what happens when they bend their head down to graze? (rawstory.com)

The simplest explanation for that observation would be that the muscle is itself sensitive to light. (jhu.edu)

The key difference between blown pupils and mydriasis is pretty simple: One is a natural, normal response and the other is not. (allaboutvision.com)
However, once you step out of the dark room, your pupils will return to normal or adjust to the new level of brightness. (allaboutvision.com)

Pupils have worked with scientists from the Roslin Institute who are experienced beekeepers to test their schools' honeybees for a common parasite. (ed.ac.uk)
Part of their project took place during the pandemic lockdown, when the pupils sent samples to scientists, who filmed the analyses for them. (ed.ac.uk)
Working with Roslin scientists, first at EBSOC and later remotely, was an opportunity for the pupils to engage with science and a number of them are now considering a science qualification and career. (ed.ac.uk)
Research scientists have been compiling our current knowledge about how light impacts on school pupils. (norwegianscitechnews.com)

If the smaller pupil is abnormal, the difference is greater in the dark. (merckmanuals.com)

One of the most interesting factors we found is that the orientation of the pupil can be linked to an animal's ecological niche. (rawstory.com)

Photophobia is eye discomfort in bright light. (medlineplus.gov)

Examination may reveal that the blown pupils are caused by problems in the brain. (allaboutvision.com)

(ii) in bright light $-$ it becomes small so that very little light can enter the eye. (tutorialspoint.com)
Reflector telescopes use a pair of large and small mirrors to direct incoming light to the eyepiece. (binoculars.com)
Horner Syndrome Horner syndrome affects one side of the face, causing the eyelid to droop, the pupil to become small (constricted), and sweating to decrease. (merckmanuals.com)
There is a greater tendency for the optic to come out of the small capsular bag and become captured by the pupil. (medscape.com)

Either the larger or the smaller pupil may be the abnormal one depending on the cause. (merckmanuals.com)
If the larger pupil is abnormal, the difference between pupil sizes is greater in bright light. (merckmanuals.com)

And don't miss the \u003ca href=\"https:\/\/sevenseasentertainment.com\/series\/she-professed-herself-pupil-of-the-wiseman-manga\/\" target=\"_blank\"\u003emanga adaptation\u003c\/a\u003e, also from Seven Seas! (gomanga.com)
The findings have implications for standardizing light adaptation paradigms and the choice of pupil metrics in both laboratory and clinical settings. (edu.au)

When exposed to bright natural or artificial light, pupils should respond by getting smaller. (aao.org)

For example, a UK study carried out in 2015 (the HEAD Project), which collected data from 3,766 schoolchildren in the UK, found that well-designed primary schools served to boost pupils' academic performance in reading, writing and maths. (norwegianscitechnews.com)
We found animals with vertically elongated pupils are very likely to be ambush predators which hide until they strike their prey from relatively close distance. (rawstory.com)

If it's determined that the blown pupil(s) are a side effect of medication or chemical exposure, your eye care provider will likely want to monitor your condition for a day or two to make sure no other symptoms, such as ptosis , appear. (allaboutvision.com)

Shown is the contrast in percentage for 5, 10, 20 and 40 lp/mm across the height of the 35mm film format, for tangential (dotted line) and sagittal (solid line) structures, in white light. (leica-camera.com)

Light sensitivity is severe or painful. (medlineplus.gov)

Also, certain drugs that get into the eye may affect the pupil. (merckmanuals.com)

Anatomy3

Diseases9

Chemicals and Drugs5

Analytical, Diagnostic and Therapeutic Techniques and Equipment9

Psychiatry and Psychology2

Phenomena and Processes14

Disciplines and Occupations1

Anthropology, Education, Sociology and Social Phenomena3

Technology, Industry, Agriculture1

Named Groups2

Constriction11

Dilate7

Dilation2

Anisocoria4

Unequal8

Pupillary11

20231

Iris9

Constrict4

Reactive2

Reaction2

Unresponsive to light2

Stimulus5

Oscillation2

Reflex2

GAUGE PRINTED1

Diameter5

Size9

Lens5

Stimuli1

Cornea3

Melanopsin3

Mammals2

Widen2

Retina6

Prevalence1

Responses3

Adapts2

Penlight2

Disorders1

Eyes13

Researchers1

Faint light2

Bilateral2

Children's2

Entrance1

Stimulation1

Twilight2

Medicines1

Occur1

Body temperature1

Retinal3

Sensitivity to li1

Conditions10

Frontal1

Humans1

Exam1

Objective2

Black1

Photons1

Diameters1

Horizontal5

Explanation1

Normal2

Scientists4

Dark1

Animal's1

Photophobia1

Brain1

Small4

Larger2

Adaptation2

Smaller1

Found2

Ptosis1

Contrast1

Painful1

Drugs1