A complex system of nerves and muscles enables the human eye to blink, gaze, and shift focus. The trochlear nerve is one of six cranial nerves that carry electrical impulses from the brain to the eye.

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 ...

Please provide your email address to receive an email when new articles are posted on . 3D-printed models of patellofemoral joint anatomy may reveal trochlear deformities in patients with recurrent ...

Please provide your email address to receive an email when new articles are posted on . Trochlear dysplasia is a common problem in patients with patellofemoral instability. Most descriptions and ...

Ligament reconstruction is an effective treatment for kneecap instability in patients with trochlear dysplasia, new research indicates. While a first time kneecap dislocation can usually be treated ...

We present signs of superior oblique underaction in a patient with orbital plexiform neuroma with radiological evidence of trochlear displacement as the primary cause of underaction. We postulate ...

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 ...

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: ...