Cranial Nerve 4 Palsy - EyeWiki
Dysfunction of the fourth cranial nerve (trochlear nerve), which innervates the superior oblique muscle (SOM), is one cause of paralytic strabismus. The SOM has different (primary, secondary, and tertiary) actions dependent on mechanical position of the eye.
What Is Superior Oblique Palsy? - WebMD
Oct 3, 2024 · The most common symptom of superior oblique palsy is diplopia (double vision). This visual distortion occurs only when both eyes are open and disappears when one eye is closed.
Superior Oblique Palsy - American Academy of Ophthalmology
Oct 27, 2015 · A superior oblique palsy can be a condition you are born with (a congenital palsy). The most common causes of a superior oblique palsy that occurs in later life are: Head injuries – these can range from major road traffic accidents to …
Fourth Nerve (Superior Oblique) Palsy - American Association for ...
Nov 7, 2024 · Fourth nerve weakness happens when the nerve in the brain that controls a certain eye muscle (the superior oblique muscle) is not working well. This can make the eyes not line up right. Often, one eye looks higher than the other. Sometimes it affects one …
Fourth Nerve Palsy (Trochlear Nerve Palsy) - Cleveland Clinic
Nov 1, 2024 · Fourth nerve palsy (trochlear nerve palsy) happens when issues with your fourth cranial nerve cause vertical (up and down) eye movement and vision issues. It usually affects one eye (unilateral) but can affect both (bilateral).
Fourth Nerve Palsy - Optometrists.org
Fourth Nerve Palsy, also known as Superior Oblique Palsy or Trochlear Nerve Palsy, occurs when the fourth cranial nerve becomes diseased or damaged. The fourth cranial nerve controls the actions of the superior oblique eye muscle and is …
Congenital fourth nerve palsy - Wikipedia
Congenital fourth nerve palsy is a condition present at birth characterized by a vertical misalignment of the eyes due to a weakness or paralysis of the superior oblique muscle. Other names for fourth nerve palsy include superior oblique palsy and trochlear nerve palsy. [1]
Superior Oblique Palsy: Symptoms and Treatments - Medicover …
Superior oblique palsy is a condition that affects the superior oblique muscle, one of the extraocular muscles responsible for controlling eye movement. This disorder can lead to vision problems, as it impairs the muscle's ability to function correctly.
Superior oblique palsy - Ophthalmology
Kono and Demer1 demonstrated in 13 patients with superior oblique (SO) palsy that clinical “overaction of the inferior oblique” is not due to an ipsilateral inferior oblique (IO) that is “too large [hypertrophied] or contracts too much.”
Superior Oblique Palsy: Epidemiology and Clinical Spectrum... : …
Today, SOP is the most common cyclovertical muscle paralysis encountered in strabismus clinics. 2 Superior oblique palsy can be congenital or acquired, unilateral or bilateral, each of which may present with a distinct clinical picture.