Oculomotor nerve palsy or oculomotor neuropathy[1] is an eye condition resulting from damage to the third cranial nerve or a branch thereof. As the name suggests, the oculomotor nerve supplies the majority of the muscles controlling eye movements (four of the six extraocular muscles, excluding only the lateral rectus and superior oblique).

An acquired oculomotor nerve palsy (OMP) results from damage to the third cranial nerve. It can present in different ways causing somatic extraocular muscle dysfunction (superior, inferior, and medial recti; inferior oblique; and levator palpebrae superioris) and autonomic (pupillary sphincter and ciliary) muscles.

2023年7月4日 · Third nerve palsy has a variety of etiologies and can be a harbinger of serious pathology. This activity reviews the etiology, presentation, evaluation, and management of CN III palsy and reviews the role of the interprofessional team …

2022年9月16日 · What Is Oculomotor Nerve Palsy? Oculomotor nerve palsy is a nerve condition that affects your vision. It can lead to double vision and difficulties using both eyes together. A...

2023年4月4日 · Symptoms of third nerve palsy are double vision, droopy eyelids, dilated pupil and a down-and-out gaze. Understanding the functions of the third cranial nerve will make it easier to understand what happens when it is not functioning properly. The prefix “oculo-” means relating to the eyes or vision. The root word “-motor” means to move.

2017年9月28日 · The oculomotor nerve contains the somatic motor fibers for the medial, inferior, superior, inferior oblique muscles and the levator complex (Figure 2). It also contains the parasympathetic fibers for the iris and ciliary body. Finally, sympathetic and trigeminal fibers travel with the 3 rd nerve.

These palsies can occur when pressure is put on the nerve or the nerve does not get enough blood. People have double vision when they look in a certain direction, the eyelid droops, and the pupil may be widened (dilated).

2022年1月6日 · Extraocular muscle paralysis resulting from destructive lesions in one or all of these cranial nerves results in failure of one or both eyes to rotate in concert with the other eye.

2024年3月28日 · Dysfunction of the third cranial nerve (oculomotor nerve) can result from lesions anywhere along its path between the oculomotor nucleus in the midbrain and the extraocular muscles within the orbit. The diagnosis and management of third nerve palsy varies according to the age of the patient, the characteristics of the third nerve palsy, and the ...

2024年3月1日 · The oculomotor nerve is a nerve pair that carries commands from your brain to muscles in and around your eyes. When the oculomotor nerve works correctly, it’s easy not to think about it. But when it doesn’t work properly, it’s understandable to feel confusion or anxiety.