Injuries
Eye injuries can sometimes result in mydriasis. This typically occurs when there is a severe and penetrating injury that damages the iris. Such injuries can also cause the pupil to become irregular in shape. Blunt force trauma may damage the nerves responsible for controlling the pupils or the iris itself, which can hinder the eyes’ ability to properly dilate and constrict in response to changes in light levels. It’s worth noting that these types of injuries can occasionally happen during medical procedures like cataract surgery or corneal transplants.
Brain Disorders and their Impact on the Eyes
Various brain conditions can have a direct influence on the eyes, possibly leading to a condition called mydriasis. Mydriasis, also known as a “blown pupil,” can occur when diseases, disorders, injuries, or other conditions affecting the brain result in increased intracranial pressure. For instance, strokes or trauma can often affect the eyes, causing mydriasis.
Another brain condition that can affect the eyes is cranial nerve neuropathy. This condition occurs when the nerves traveling to the eyes experience gradual damage. Individuals with cranial nerve neuropathy commonly experience additional eye-related symptoms, such as impaired vision.