Top
30
Doctor insights on: Unequal Pupil Size

Share
1

1
Unequal pupils sizes, is there really a cure?

Unequal pupils sizes, is there really a cure?

Anisocoria: Is a condition of unequal pupil sizes. Affecting 20% of the population, it can be an entirely harmless condition or a symptom of more serious medical problems. Have it checked out. If it is harmless, just ignore it. If there is an underlying medical problem, then that is what needs to be treated. There are medicines to make a pupil larger or smaller, and the strength can be adjusted. Don't do that ...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


2

2
I have an unequal pupil size, should I be worried?

I have an unequal pupil size, should I be worried?

Probably not: Unless you have had some direct injury to the eye or to the nerves to the eye, it is probably ok. There is commonly a little difference between pupils and if the difference is 1 mm or less, that is considered normal. If you vision is fine and the eye feels fine, don't worry about it. ...Read more

3

3
What can cause unequal pupil size? It is not very much bigger than the other one and it contracts fast to light. And should I worry?

What can cause unequal pupil size? It is not very much bigger than the other one and it contracts fast to light. And should I worry?

Check photos: To see if has always been there. If yes, it is likely physiologic anisocoria which is fine. If this is a new change - than get checked. ...Read more

4

4
I have unequal pupil sizes. What is the reason why?

I have unequal pupil sizes. What is the reason why?

Many causes: An eye exam is needed to know why the pupils are unequal, as there are many causes. A slight asymmetry in pupil size might be normal for some. A dilated pupil on one side can the the sign of a serious problem (3rd nerve paralysis), as can an abnormally small pupil on one side (horner's syndrome). Adie's tonic pupil causes a large poorly reacting pupil on one side. Get an exam for a diagnosis. ...Read more

5

5
Could stress cause unequal pupil sizes?

Well...: If you already had unequal pupil sizes (anisocoria) ; the pupils dilated under stress- it could become more apparent. ...Read more

6

6
Pressure in the left side of my head for nearly 2 weeks. Doesn't cause any pain but it does cause dizziness and unequal pupil size. What is it?

Pressure in the left side of my head for nearly 2 weeks. Doesn't cause any pain but it does cause dizziness and unequal pupil size. What is it?

Insufficient data: It is impossible to say exactly what is going on, age, blood pressure, other symptoms or complicating comorbid conditions, medications, state of your "nerves" all matter. Give details ...Read more

7

7
Painless pressure in head won't go away with painkillers? Pressure in head can cause dizziness, drowsiness and anisocoria (unequal pupil size)?

Painless pressure in head won't go away with painkillers? Pressure in head can cause dizziness, drowsiness and anisocoria (unequal pupil size)?

Emergency: Without an actual examination, I cannot give specific medical advice on your particular health,
but, signs of a life-threatening amount of pressure in the head (tumor/bleeding/mass as possible causes) would include
drowsiness, change in pupils, change in mood/alertness. And sometimes other neurological symptoms incluing balance/dizziness or weakness or seizures. ...Read more

9

9
Can ear infection/disorder/disease or vestibular issues cause unequal pupil size? Opthamalogist says eyes fine and he doesn't suspect neurological.

Can ear infection/disorder/disease or vestibular issues cause unequal pupil size? Opthamalogist says eyes fine and he doesn't suspect neurological.

How unequal: Vestibular lesion would not alter your pupil size. If an ophthalmologist examined you and determined it to be not a cause for concern, please let it be.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

10

10
Pupils different sizes, noticed last yr. PCP noticed at physical. Since then notice it varies between equal and unequal sizes. Why? Ask eye doctor???

Likely normal: About 20% of people have anisocoria, or unequal pupils. It is not indicative of any disease, and does not threaten vision. You have probably had it your whole life and never noticed. As long as you don't have any visual or other symptoms, there is probably nothing to do. Hope this helps! ...Read more

11

11
Is it typical for a baby's pupils to be different sizes?

Is it typical for a baby's pupils to be different sizes?

Baby's pupils: A discrepancy between pupils is called anisocoria. In a well child who has no neurological abnormality and no history of trauma it is normal and of no concern. ...Read more

12

12
What problem are unequal pupils a sign of?

What problem are unequal pupils a sign of?

May be normal, or no: Unequal pupils (anisocoria) can be seen in 10% of normals. May be seen with abnormalities of the cranial nerves, multiple sclerosis, other issues. New finding? See your doc for sure to rule out a serious problem. ...Read more

13

13
Is it okay that my pupils are different sizes?

Depends: Some people have pupils of different sizes with no other problems. In others, it's a sign of significant injury to the central nervous system. ...Read more

14

14
Does the size of your pupil affect your vision?

Does the size of your pupil affect your vision?

Not really: The pupil size varies with light exposure but vision will not change. Any non reaction or difference in size between pupils warrants an exam with the ophthalmologist for full evaluation. ...Read more

17

17
Is it possible to wake up with unequal pupils and nothing be wrong?

Probably not: If you have unequal pupils you should see your ophthalmologist. If you're using eyedrops this may contribute. Please seek attention. It could ...Read more

18

18
How long will it take for the atropine to wear off and my pupils to shrink back to normal size?

How long will it take for the atropine to wear off and my pupils to shrink back to normal size?

Atropine for eyes: The duration of action for Atropine can last up to two weeks. If vision is blurred, protect eyes from bright light & do not drive or operate dangerous machinery until the atropine's effects have worn off. Many eye docs do not use Atropine because of this long duration of action. ...Read more

19

19
My pupil size is big than other which happened due to an injury...Am I be worried? Any solution for getting back normal?

My pupil size is big than other which happened due to an injury...Am I be worried? Any solution for getting back normal?

Anisocoria: Traumatic anisocoria (different pupil sizes) is common after eye trauma. It is usually not a problem and repair is not needed. If glare due to the large pupil bothers you, a contact lens, pupillary cerclage or other suturing techniques can be considered. ...Read more

20

20
Should I be concerned if my pupils are two different sizes, I noticed it about 2 years ago. Has this happend to anyone else?

Anisocoria: Or unequal pupils can occur under normal circumstances in up to 20% of population. It can also be a sign of disease in the eye. A visit to an eye care professional can sort things out quickly and completely. Thanks for trusting HealthTap! ...Read more

21

21
What controls eye movements and the size of the pupils?

What controls eye movements and the size of the pupils?

Cranial Nerves: Cranial N II (Optic) subtends vision, III (oculomotor) subtends levator, superior rectus (sup. Branch), medial rectus, inferior rectus, inf. Oblique & pupillary constriction (inf. Branch); IV (trochlear) subtends superior oblique; VI (abducens) subtends lateral rectus; and sympathetics along the arterial pathway subtend pupillary dilation. CN's on the left and right. Nuclei in the brainstem. ...Read more

22

22
Why are my pupils two different sizes?

See Doctor: It is important that you go to the emergency room of your local hospital and have a doctor examine you right away. ...Read more

25

25
I noticed last month my pupils were different sizes. The diff is only 1 mm maybe less, I noticed it also a few months ago. ..Should I be concerned?

Anisocoria: Generally an incidentally noted pupillary defect can just be followed until we know it is stable and therefore not being caused by a sinister lesion. If this is not progressive or associated with other findings it is benign. Often known as physiologic anisocoria. ...Read more

26

26
Does anxiety cause changes in pupil size?

It can: The diameter of the pupil tends to enlarge in response to fear. In fact some scientists are using technology to measure pupillary response in studies of fear. The pupils will also change diameter in response to changes in the body, such as the introduction of various drugs. ...Read more

27

27
Could unequal pupils be caused by stress?

Could unequal pupils be caused by stress?

Not - BUT: Anisocoria (unequal pupil size) is likely to be much more easily picked up with dilated pupils. Anxiety/ stress can cause pupils to dilate. ...Read more

28

28
Is any operation or procedure needed to fix unequal pupils?

No: But u may get greater benefit from the use of sunglasses to protect the no constricting pupil. ...Read more

29

29
Please let me know if there is any operation/procedure to fix unequal pupils?

Please let me know if there is any operation/procedure to fix unequal pupils?

YouDon'tSeeEyeToEye: It depends on what's causing them but even then there's not much to offer except maybe eye drops that counteract whatever is causing the inequality (dilated on one side, constricted on the other or vice versa) unless the problem is in the eye and irreversible. Sometimes a systemic medication based on the cause. Rarely surgery. If that's what you have, start with a neurologist or opthalmologist. ...Read more

30

30
One of my pupils is dilated to almost twice the size of the other. What can cause this?

One of my pupils is dilated to almost twice the size of the other. What can cause this?

Anisocoria: Anisocoria refers to unequal pupils.
Physiologic anisocoria is very common and normal in up to 20% of people. The variation should be no more than 1mm and both eyes should react normally to light.
It can be dangerous if it is a form of horner's syndrome (e.g. Carotid dissection) or from damage to the third nerve (e.g. Aneurysmal expansion) so you should get it checked out! ...Read more

Find us on Facebook