Doctor insights on:
Pupil Stay Dilated
Depends: Visual field testing doesn't require dilation. Oct can also be performed without dilation although in some patients the signal strength and accuracy of the measurements can improve with dilation. Optic nerve photography is also best performed dilated stereo photographs are preferable. Dilation can last fabout 2-10 hours depending on the drugs used and color of the iris. Blue is more sensitive. ...Read more
Several hours: It really depends on the drops used at your doctors office. The standard drops used can keep pupils dilated between 4-6 hours. However, in some patients the drops can keep the pupils dilated for up to 24 hours. ...Read more
Several hours: Up to 5 or 6 hours or more for susceptible people. ...Read more
See below: The typical dilation drops used in the office for examination last for several hours after (longer in lighter-eyed individuals). Other therapeutic dilation drops that are prescribed can last days or weeks. ...Read more
What could be causing my 6 year old's pupils to stay dilated? He has extreme light sensitivity. Pupils eventually dilate, but very slowly.
Pupils dilated: Consider a toxic ingestion of a medication or poison. If he is acting otherwise normal then perhaps not likely, but if he had any other symptoms, such as altered mental status, vomiting, fever, etc then urgent medical attention may be warranted. A urine sample possibly could be used for testing for toxin exposure. ...Read more
I am on medicine for add and it makes my pupils really dilated. Is there any way I can be avoid this?
Contact your doctor: Medications all have potential adverse reactions, and there is likely multiple choices to handle your problems. Since you do not list your medication, it is impossible to assess how to modify dosing or select alternatives. Have a lengthy visit with your doctor and assess other choices. ...Read more
My pupils are always dilated. People are always accusing me of being on drugs or something. Is there any simple meds to shrink them back?
Dilated pupils: Dilated pupils can be caused by medication, specifically anti depressents or anti histamines. Treatment is usually removing the cause. ...Read more
Do your pupils dilate when you od? Not sure if I've taken too much but they're really dilated & I'm tired & feel wierd. Don't want to waste ambos time
Go to hospital now: Different drugs have different effects (on your eyes). Given your description, it's best that you get evaluated immediately so go to your closest emergency department. Have someone else drive you there or call 911. You don't want to go unconscious while driving and then injure someone else. ...Read more
Adrenaline surge...: Adrenaline is the principal mediator of the "fight or flight" response. This prepares your body for immediate action. Pupils dilate to increase light transmission, heart rate and blood pressure go up and blood is shunted away from other organs to the skeletal muscles. If this occurring in the absence of a stimulus, it is likely due to hypoglycemia or low blood sugar. Check for Insulin resistance. ...Read more
Pupils dilate and: Constrict under control of cranial nerve 2 and 3. 2nd senses light and 3d adjusts pupil to control light input. No dilation = deficit in one or the other or a medication in the eye has poisoned muscle function. Would be very unlikely to inadvertently notice that both pupils do not dilate. Close eyes in bright room then open while friend observes. If they constrict they must have been dilated. ...Read more
Good question for wikipedia.
Depends on the drug as many things make them dilate but by different mechanisms. ...Read more
Brain injury: Usually indicates a serious brain injury.Get a more detailed answer ›
? Pharmacist?: Maybe a pharmacist could help you to identify this. ...Read more
It can be: This can be due to certain medical diseases, exposure to certain medications and to certain structural abnormalities inside the head. This needs to be evaluated by your doctor. ...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
Yes & no - see below: Pupil constriction and dilation in response to different levels of lightis unaffected by contact lenses. However, if pupils being pharmacologically altered for eye exam or prior to eye surgery, then conact lenses should always be removed prior to instillation of of eye medications. ...Read more
My pupil does not dilate like others in the darkness or nighttime, it dilates very little. I have small pupil all the time comparing to others. Why?
Does it match L--R?: If you have asymmetric pupils, you should see an eye dr for exam. If your pupils match in size l-r, but are smaller than others', that may just be you. ...Read more
My right pupil will randomly dilate for & stay that way for 24 hours. When I wake up the next day it is completely normal. Occurs about twice a month.
Definitely ABNORMAL and you should start by telling your Primary Care Medical Provider who may want to refer you to an OPTHAMOLOGIST. What is INTERMITTENT now may become PERMANENT if there is an injury to the nerves in that eye....
Hope this is helpful!
Dr Z ...Read more