Anyone know anything about Horner's Pupil? (long)

soon2Bmrspower · April 2009

DS had an appointment with a Pediatric Ophthalmologist this week, because we thought one of his eyes was turning inward occasionally. Well the dr. said that is not the case and that all is well (no lazy/wandering eye like my husband had when he was little).

However, he noticed that his pupils were different sizes, and therefore the shaping of his eye was different. I had noticed the different shaping before, but never the size difference in the pupils. The dr seemed a little baffled as to what could cause this, but ultimately the only thing I heard that it might be is something called Horner's Pupil.

He is going to send a letter to our pedi (and a copy to us) and we will go from there. I have no idea what that means, what the letter will say, if he is concerned or not, etc. I was so exhausted after 3 hours in his office that I wasn't quite thinking clearly.

At this point, I am going to wait for the letter and then see where to go from here. I am also going back and looking at baby pictures to help determine if it has always been like this or if it is something recent that has changed. I have googled it like crazy and found the definition (A pupil that is constricted due to impairment of the sympathetic nerve of the dilator muscle of the pupil.) which is the same thing the dr told us, but the main question now is what is causing it. Was he born that way or has a nerve been damaged since birth? The even scarier thing is that I found that some causes of it can be tumors and bigger things like that. Ugh! Just a worried Mom here ... anyone ever heard of this or know anything about it? TIA!

JutsMlon · April 2009

My son has different size pupils too. One is always bigger than the other and has been that way since birth. We took him to a pediatric opthomologist also and they said that it was nothing major but to watch if anything changes. I also did a bunch of research online before the appointment and asked him about the tumor possibility and he stated that he didn't see anything associated with that when looking at his eye. My DS can see fine and it doesn't affect him. My Dr also stated that since this has been around since he was born, we discovered it at 2 months old, that it most likely isn't serious and was just they way his pupils developed. So we are just keeping an eye on him and if he ever has to go to the Dr because of an accident we just have to make them aware that his pupils are a different size naturally. IDK if this helps any but thought I would share. Just watch him and if you notice anything different or if he seems to have trouble seeing then take him back in. Good Luck!

AugustaBride04 · April 2009

My DD has different sized pupils too. We too her to a pedi opthomologist around 6 months upons pedi's rec. After all the tests, they said nothing was wrong and some people are just like that. In fact, the opthomologist looked at my eyes when we there and said I have the same condition, it's just not as noticeable and can change depending upon the environment, light etc. I had no idea until he pointed it out. He also mentioned that it can be hereditary. We are just supposed to keep a watch on it to see if it changes or gets any worse. I was really worried before our visit and before we found all this out. Hope that helps.