Doctor insights on:
Unequal Pupil Size
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
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
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
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
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?
Painless pressure in head won't go away with painkillers? Pressure in head can cause dizziness, drowsiness and anisocoria (unequal pupil size)?
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
What causes non symmetrical face structure, sinus problems, and unequal pupil size with double vision? Lump in neck, poor gag reflux, and diff swallow?
Can ear infection/disorder/disease or vestibular issues cause unequal pupil size? Opthamalogist says eyes fine and he doesn't suspect neurological.
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.
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Practice safe sex, if you have sex. ...Read more
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
Unequal pupils: Unequal pupils are pupils of different size. ...Read more
No: You probably have simple anisocoria. If you are concerned, see an ophthalmologist. ...Read more
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
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
My pupil size is big than other which happened due to an injury...Am I be worried? Any solution for getting back normal?
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
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
Probably: Within 1 mm is normal.Get a more detailed answer ›
Normal - see link.: Http://www. Nlm. Nih. Gov/medlineplus/ency/article/003314.htmGet a more detailed answer ›
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
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
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