The trochlear nerve is also known as cranial nerve IV (CN-IV). It is the only cranial nerve that emerges dorsally from the brain (near the back), giving it the longest pathway. It is the smallest ...

Dear Doctors: I had an episode where it felt like my left eye went out of alignment and I couldn’t focus. A brain scan was clear, but the doctor said it’s cranial nerve palsy. He says it’s from a ...

The cranial nerves are a set of twelve pairs of nerves that travel to and from the brain. Each has a different function. For example, the olfactory nerve is essential for detecting smells. The ...

Most cases of altered sensation are related to trauma. Facial palsy is often due to Bell's palsy. However, many disorders of orofacial sensation and movement can be an indicator of serious underlying ...

Q: My friend had a head injury while playing soccer. She did not lose consciousness or anything, but she developed what the doctor called a fourth nerve lazy eye afterwards. What is this all about? A: ...