The trochlear nerve, like the oculomotor nerve, originates in the midbrain. It powers the contralateral superior oblique muscle that allows the eye to point downward and inward.

Bilateral trochlear nerve palsy due to cerebral vasculitis related to COVID-19 infection Paralisia bilateral do nervo troclear por vasculite cerebral relacionada à infecção por COVID-19 ...

The trochlear nerve (fourth cranial nerve) is vital for eye movement and focusing. By strengthening this nerve, you can improve eye coordination and reduce strain. This blog post details five easy ...

The ophthalmic nerve is the ophthalmic branch of the trigeminal nerve that supplies sensation to the eye, nasal cavity, nose, and forehead.

Due to their proximity to the brainstem, radiological differentiation between trochlear nerve schwannomas and intrinsic brainstem gliomas can sometimes be challenging, potentially influencing decision ...

When the fourth cranial nerve is injured or diseased, it can cause paralysis of the superior oblique muscle. This is known as superior oblique palsy, trochlear nerve palsy, or fourth nerve palsy.

Find out what you need to know about the trochlear nerve. Discover its functions, location, and related health conditions.

Cranial nerve examination forms an essential part of neurological examination and is vital to identify abnormalities relating to an array of cranial pathologies. It can be performed in various ...

Signs that localize to the cavernous sinus or orbital apex merit an MRI with gadolinium. Lesions of the third nerve in the cavernous sinus and superior orbital fissure often involve other cranial ...

Hypertropia is a condition that causes one eye to point upward. Learn more about hypertropia, its treatment, diagnosis, symptoms, outlook, and more.

There are 12 pairs of cranial nerves that emerge from the brain stem. Learn about the functions of each pair and their related conditions.