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Strabismus surgery (also: extraocular muscle surgery, eye muscle surgery, or eye alignment surgery) is surgery on the extraocular muscles to correct strabismus, the misalignment of the eyes. [1] Strabismus surgery is a one-day procedure that is usually performed under general anesthesia most commonly by either a neuro- or pediatric ...
Sometimes surgery on more than one eye muscle is required. In some simpler, unilateral cases a single surgery may suffice. In these cases the main problem is that the inferior oblique muscle of the same eye acts unopposed by the weakened superior oblique muscle, pulling the eye up.
The superior oblique muscle loops through a pulley-like structure (the trochlea of superior oblique) and inserts into the sclera on the posterotemporal surface of the eyeball. It is the pulley system that gives superior oblique its actions, causing depression of the eyeball despite being inserted on the superior surface. Superior oblique nerve
Acquired cases that have active inflammation of the superior oblique tendon may benefit from local corticosteroid injections in the region of the trochlea. The goal of surgery is to restore free ocular rotations. Various surgical techniques have been used: [1] [3] Harold Brown advocated that the superior oblique tendon be stripped. A procedure ...
MISS is a technique that can be employed for all major types of strabismus surgery like rectus muscle recessions, resections, plications, reoperations, transpositions, oblique muscle recessions, or plications, and adjustable sutures, even in the presence of restricted motility.
The lateral, superior, and inferior recti muscles are separated using a strabismus hook. The connecting tissue is then separated from the posterior pole, as well as the inferior oblique muscle. The strip of material is passed under the separated muscles, and pushed down deeply towards the posterior pole.
Incyclotorsion is a term applied to the inward, torsional (rotational) movement of the eye, mediated by the superior oblique muscle of the eye. The superior oblique muscle is innervated by cranial nerve IV (trochlear nerve). Incyclotorsion may also be used to describe one part of the condition of the eye when a patient has an oculomotor nerve palsy
Hypertropia may be either congenital or acquired, and misalignment is due to imbalance in extraocular muscle function. The superior rectus, inferior rectus, superior oblique, and inferior oblique muscles affect the vertical movement of the eyes. These muscles may be either paretic, restrictive (fibrosis) or overactive effect of the muscles.