Yes, it is possible to get pupils dilate because of a concussion. A concussion can cause vision or eye disturbances such as poor response to light, dilated pupils or pupils of unequal sizes, which indicate that an emergency care for the people who experiences the head injury is essential. It is necessary to have an thorough examination in the department of neurology and opthtalmology.
Well, I can see that you are concerned about your eyes after the concussion. So, as a matter of fact concussion is one of those external injuries and it could leave a lot of damage to our body, including our eyes because concussion could impair our visual nerves. So, according to some cases, concussion could indeed lead to dilated pupils for your pupils are irritated and its physical damage could affect your pupils.
Well, in some degree, it can lead to dilated eyes. Generally speaking, when you have concussion, it can just lead to some changes in your body, such as high blood pressure in your brain. And then that can affect your eyes, leading to some eye problems, such as dilated pupils. And when that occurs, the black part of the eye is bigger than normal. Also, we can say that dilated pupils look like a big black circle. And according to the experts, there are many different factors which can cause pupils to be dilated. For example, anxiety can lead to it in some degree. Besides, drug use, illness, and trauma are other causes. For your situation, just have the doctor check your eyes carefully and have some treatments.