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Doctor insights on: Causes Of Pupil Dilation In One Eye

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Could a migraine headache or car sickness cause slight pupil dilation in one eye?

Could a migraine headache or car sickness cause slight pupil dilation in one eye?

Dilated pupil: You should see an ophthalmologist for complete eye exam. Unilateral pupil dilation and be nothing at all or something serious.
So, see your ophthalmologist. ...Read more

Pupil (Definition)

The pupil is the opening in the iris inside of the eye though which light is focused on the retinal film at the back of the eye. The iris can open and close in response to light to vary the amount inside the eye. It is what looks red, in the ...Read more


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My wife had spontaneous pupil dilation in one eye, has lasted several hours, same eye has blurry vision. No other symptons. 48 year old female.?

My wife had spontaneous pupil dilation in one eye, has lasted several hours, same eye has blurry vision.  No other symptons.   48 year old female.?

Evaluate: Although your wife is not having pain, she is having acute symptoms that are concerning.
Glaucoma, iritis, or other. I would get things checked. ...Read more

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Can allergy eye drops cause pupil dilation?

Can allergy eye drops cause pupil dilation?

No: Typically allergy eye drops contain antihistamines or saline. Should not noticably affect pupils. Even steroid Rx drops. Something else; ask your doctor. One pupil enlarged only? Go to ER. ...Read more

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Sudden onset of pupil dilation. Only in one eye with double vision, feels like there is pressure. Lasted about 5 mins. Frequent. Should I be concerned?

Sudden onset of pupil dilation. Only in one eye with double vision, feels like there is pressure. Lasted about 5 mins. Frequent. Should I be concerned?

Get medical consult.: Hello, sudden pupil dilation and visual disturbances are neurological symptoms that need to be addressed further. There is need to consult a Neurologist and probably imaging studies to evaluate/exclude conditions such posterior cerebral artery aneurysm, dural arteriovenous fistulas etc. Take care. ...Read more

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What are some common causes of spontaneous pupil dilation and dizziness? head MRI clean

Pupils: Pupil dilation or mydriasis can occur with anything that will cause increased sympathetic tone or adrenalin. Nerves, excitement, fright, flight are all things that will dilate the eyes. Caffeine, decongestants eye drops can all dilate the eyes. ...Read more

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Could pupil dilation hurt my eyes?

Could pupil dilation hurt my eyes?

No: These are used daily in ophthalmology offices! we would not use a hurtful medication. The dilating drops do make your vision blurry until t.He pupils get back to normal. ...Read more

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How do you reduce pupil dilation after finishing eye exam?

How do you reduce pupil dilation after finishing eye exam?

Pupil dilation: I offer reversal pupillary dilation drops called dapriazole, which lessen the duration of dilation by about 4 hours. Of course it depends on which dilating eye drops the doctor is instilling. ...Read more

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How long does it take for pupil dilation to go away after eye exam?

How long does it take for pupil dilation to go away after eye exam?

It depends: It can generally take 3-4 hours, but it can last longer in patients with diabetes, or brown irises. There are drops that reverse dilation faster. ...Read more

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Slowed pupil dilation in left eye in response to bright light exposure. How to make this normal?

Slowed pupil dilation in left eye in response to bright light exposure. How to make this normal?

Confused: The pupil becomes smaller in bright light. Dilation is when the pupil increases in size. This occurs in dim light or when you are frightened. ...Read more

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Migraines, inability to focus in right eye and pupil dilation in right eye only. Starting to occur more often. Maybe stress? or something else?

Migraines, inability to focus in right eye and pupil dilation in right eye only. Starting to occur more often. Maybe stress? or something else?

Unequal pupils: 25 F:Migraines, inability to focus in right eye and pupil dilation in right eye only. Starting to occur more often. Maybe stress? or something else? ANS: unequal pupils is a sign of serious problems in the brain. Please see your Dr as soon as you can. ...Read more

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I have a refractive error of -5.75 in both eyes (myopia & astigmatism) and floaters in both eyes. Is a pupil dilation better than the digital retinal?

I have a refractive error of -5.75 in both eyes (myopia & astigmatism) and floaters in both eyes. Is a pupil dilation better than the digital retinal?

Yes: Nothing beats the chance to get a good look at the peripheral retina when there is an onset of new floaters. Dilation is a bit of an annoying pain but is recommended in this circumstance. You are, hopefully, seeing an ophthalmologist. ...Read more

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Is it common to have blurred vision after pupil dilation at eye doctor?

Is it common to have blurred vision after pupil dilation at eye doctor?

Dilation: As a common part of the vision evaluation, the pupil may need dilation with eyedrops to allow a better view of the back of the eye.This causes some disturbance of the vision including difficulty focusing and blur from the enlarged pupil. All of this will disappear by the next day as the pupil normalizes. ...Read more

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What is causing my right eye pupil dilation? I have been suffering from grand mal seizures, with severe headaches, right side only temple swelling, right eye pupil dilation, and also a sore right beside the afflicted eye.

What is causing my right eye pupil dilation? I have been suffering from grand mal seizures, with severe headaches, right side only temple swelling, right eye pupil dilation, and also a sore right beside the afflicted eye.

You : You should immediately make an appointment with an ophthalmologist and a neurologist. You don't say how long this has been going on, or whether your vision is affected, but there could be very serious problems. If this just started and you cannot get an appointment immediately, go to the emergency room. ...Read more

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Can lack of sex cause pupil dilation?

Can lack of sex cause pupil dilation?

No.: Lack of sexual activity or excess sexual activity will have no effect on the normal, daily, stable size of your eye's pupil. Your eye's pupil may become dilated during sex if you are engaging in the activity in a dimly lit room as a normal reaction to the eye needing more light to enter the eye and impact the retina for one to see. Lack of sex may make you a poor "pupil" of sex however. ...Read more

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Does alcohol cause pupil dilation?

Does alcohol cause pupil dilation?

Usually constriction: Alcohol in large amounts can cause pupillary constriction. That being said, it is not the best indicator of alcohol use/intoxication. Like benzodiazepines and opioids, alcohol is a depressant, promoting parasympathetic activity and pupil constriction. ...Read more

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Does insomnia cause pupil dilation?

Does insomnia cause pupil dilation?

Not usually: Dilated pupils can occur as a side effect of various medications and several illicit drugs. Serious medical conditions such as serotonin syndrome can also cause this. Insomnia for a night or two would not usually result in dilated pupils.

How long have you had insomnia? Have you been depressed or started a new medication? See your doctor to be sure and bring a list of all drugs, herbals takin ...Read more

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Can doctor drops cause uneven pupil dilation?

Yes.: This can be either due to the drops that the doctor uses in each eye or due to a difference in each iris of the person who is being dilated. The doctor may use a stronger combination of drops in one eye resulting in uneven pupil dilation. The iris of one eye may have an anatomical difference in its make-up that is either congenital or acquired (trauma) that could lead to uneven pupil dilation. ...Read more

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Is it possible for one to be hypersensitive to drug-induced pupil dilation?

Is it possible for one to be hypersensitive to drug-induced pupil dilation?

Yes.: Drug induced pupil dilation generally lasts roughly 3 to 4 hours where the patient is blurred for reading but generally can still see well at distance. Some eyes are more sensitive to the dilating drops, especially lighter colored eyes that have less melanin pigment. In these eyes the dilation may last several hours and even have a lingering effect into the next day. ...Read more

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Had migraines w/aura since 7yrs old, right pupil dilation & have a headache daily. No medication had helped. What could cause this?

Had migraines w/aura since 7yrs old, right pupil dilation & have a headache daily. No medication had helped. What could cause this?

The migraine aura: is a neurosensory disturbance that includes a series of idiopathic, recurring neurologic symptoms that develop gradually over a 5-20 minute period and last less than an hour. An aura that lasts more than 60 minutes may be indicative of more serious pathology. As the aura abates there may be a pain-free interval. Take your medication before the headache occurs at aura end.
See OFP specialist. ...Read more

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Would hypocalcemia cause pupil dilation in response to light?

Unlikely: Severe hypocalcemia may weaken muscle contraction, which could make the pupils unable to constrict. But it cannot cause a paradoxical dilation of the pupils to light. ...Read more

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Could hypocalcemia cause pupil dilation and a sluggish pupil response to light?

Hypocalcemia: A complete list of the symptoms of hypocalcemia (h) can be found at this link: http://www.Clevelandclinicmeded.Com/medicalpubs/diseasemanagement/endocrinology/hypocalcemia/.

Pupil dilation and and a sluggish pupil are not some of the symptoms of h. ...Read more

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Can Celexa (citalopram) cause pupil dilation?

Can Celexa (citalopram) cause pupil dilation?

Possible: Celexa (citalopram) can cause pupil dilation. It is an uncommon side effect. If this occurs see prescribing doctor or pcp for exam and guidance. Best wishes. ...Read more

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Sudden bilateral pupil dilation in normal light, pupils responded to direct light but returned to dilated size, normalised after 10mins. Cause?

Pupil dilation: Many causes of pupil dilation, including
emotions - higher levels of circulating adrenaline, which occur during times of excitement or fear.
drugs - from eye drops to hallucinogenics. Especially drugs that are anticholinergic
light - low light, or a problem with receiving light on the retina
neurologic problem - from the optic nerve to the part of the brain that regulates the eyes. ...Read more

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How can one reduce pupil dilation? I take aderall 30mg XR once every am 5 mg ir evening. Most days iris all but disappears, and i look like a junkie

Constricting pupils: Aderral can cause pupil dilation, so the options are to reduce dosage or eliminate the aderral, switch to a different drug (eg if you are treating adhd, straterra may be an option, or other treatment). Taking another drug to constrict the pupil (eg, Pilocarpine 1% 1 drop) may also cause other side effects, like pinpoint pupils, blurry vision, corneal irritation. & long term use: lens opacification. ...Read more

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Need doctor's help! will lack of blood flow cause pupil dilation?

See doctor: Lack of blood flow to the optic nerve or retina causing damage can result in pupil dilation. Your question gives very little information, yet some very serious conditions might be involved. Based on the little information you provide, i recommend going to the emergency department for urgent evaluation. ...Read more

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Eye traumaic pupilary mydriasis is tht curable .Eye had blunt truama one month ago with a tennis ball?

May improve: Mydriasis from trauma may spontaneously improve over a six month period but usually is stable after that. You can ask your ophthalmologist to prescribe Pilocarpine which is a pupillary constrictor which might encourage the pupil to narrow. If the pupil is widely dilated, there is an intraocular implant of an artificial pupil which might help and colored contact lenses might also be used. ...Read more

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What is it when someone has one eye that rolls up so you only see the white but the other looks at you ok? Mydriasis?

What is it when someone  has one eye that rolls up so you only see the white but the other looks at you ok? Mydriasis?

Strabismus: If the eyes are not tracking together, it is a muscle balance problem, and is either something they have had all their life, or is a new eye muscle problem due to nerve compromise. This could be a TIA or cva. See your eye md as soon as possible if you have this problem. ...Read more

Dr. Eric Weisman
72 doctors shared insights

Mydriasis (Definition)

Mydriasis is the process of dilating the ...Read more