Anisocoria is an eye condition characterized by two unequal sizes pupils. It occurs mainly due to impaired constriction or dilation of the pupils. Eye pain, blurred vision, and light sensitivity are common symptoms. Treatment depends on the underlying cause.
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I have irregularly shaped pupils. Is there a simple explanation?
Query: Hello doctor, I am a 20 year old female. I weigh 50 kg, and my height is 5'2". My only prescription medication is birth control. I have irregularly shaped pupils, and one is bigger than the other. I noticed this over a week ago, and they have remained the same. Should I be worried? Is there a simple... Read Full »
Answer: Hello, Welcome to icliniq.com. This difference in pupil size is known as anisocoria. There are many causes for anisocoria like the unilateral use of dilating eye drops, Horner's syndrome (disrupted nerve pathway from the brain to face and eye), Adie's pupil (dilated pupil), etc. Kindly consult you... Read Full »
My 6-month-old daughter has smaller right pupil. Why so?
Query: Hello doctor,I am the parent of a 6-month-old baby girl. Recently, I have noticed that her right pupil appears to be smaller than her left pupil. I have attached two photos for your reference. I want to emphasize that aside from this observation, our daughter appears to be fit and healthy, and we ha... Read Full »
Answer: Hello, Welcome to cliniq.com. Thank you for your query. Differences in the pupil size, known as anisocoria, can have various causes. Potential causes include benign physiological anisocoria, where the pupils naturally differ in size without any underlying issue. However, it could also be due to neur... Read Full »
What is the cause of unequal pupil size in infants?
Query: Hi doctor, I am really worried about my 5-month-old daughter. She is crying a lot and vomiting. During crying, giving her breast milk helps for a moment. She is taking Omeprazole and Gaviscon for reflux for three months, but it does not help her. The reflux has been diagnosed after a consultation w... Read Full »
Answer: Hi, Welcome to icliniq.com. I have gone through your query and have looked at the reports provided by you in detail (attachments removed to protect the patient's identity). I can definitely understand your concern. 1. Issue of unequal pupil size- This is called anisocoria in medical terms. In ped... Read Full »
I am around 38 years old and noticed a change in pupil size. Will it subside on its own?
Query: Hello doctor, I am around 38 years old and noticed a change in pupil size approximately six weeks ago. The doctor diagnosed physiological anisocoria and said there was a difference of 1 mm. But I have noticed the difference to be more on some days. What could be the reason for this? Will it subs... Read Full »
Answer: Hi, Welcome to icliniq.com. I understand your concern. Physiological anisocoria of one mm is normal. The size of the pupil keeps changing depending on the light exposure. Therefore, the correct method to check pupil size is scotopic pupil size which is checked by pentacam and other instruments in ... Read Full »
My pupils are uneven. What could cause anisocoria?
Query: Hello doctor,One of my friends recently pointed out that my pupils are sometimes uneven. I searched and got many scary possibilities. However, I did look at pictures from years ago and noticed different degrees of anisocoria. Now that someone has pointed it out, I obsess over it and see it a lot. It... Read Full »
Answer: Hello, Welcome to icliniq.com. There are different pathological causes of anisocoria, as you mentioned that you are taking medications, including Paxil (Paroxetine). It means drug levels are changed in blood and its effect on pupil size. If you are not having any problem, there is nothing to worry... Read Full »
Can you explain the reason behind my unequally dilated pupil?
Query: Hi doctor, I have one pupil dilating more than the other in dim light. I noticed it before few months. I suffered from some issues last year. I had vertigo, heart arrhythmia, and anxiety. I consulted the GP, and he told that the condition is nothing to worry. He did not consider it. I am concerned... Read Full »
Answer: Hi, Welcome to icliniq.com. I have gone through the attachment (attachment removed to protect patient identity). I have evaluated your eyes and pupils very patiently, and I agree with the findings of anisocoria. Now, there are many causes to have anisocoria such as some medications, nerve palsies,... Read Full »
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