overaction


Also found in: Dictionary, Thesaurus.
Related to overaction: overhyped, scrutinised, bumped up

overaction 

Term referring to the excessive action of an extraocular muscle as a consequence of palsy or limitation to the ipsilateral antagonist or the contralateral synergist. See Table M5.
References in periodicals archive ?
Myectomy versus anterior transposition for inferior oblique overaction. J AAPOS.
Comparison of pre- and postoperative inferior oblique overaction severity Preoperative Early postoperative period Mean [+ or -] standard 2.55 [+ or -] 0.75 0.14 [+ or -] 0.36 deviation p* <0.01 Late postoperative period Mean [+ or -] standard 0.14 [+ or -] 0.36 deviation p * * t-testi
As a result of the torsional drift the pulling direction of the recti muscles are altered mimicking oblique overaction in the nonviewing eye.
Imbalance between the tone of superior and inferior obliques and relative overaction of superior oblique in response to premotor inputs naturally predicts increased ocular tilt responses during head tilt causing otolith stimulation.
Nussdorf, "Inferior oblique overaction in infantile esotropia: fundus extorsion as a predictive sign," Journal of Pediatric Ophthalmology and Strabismus, vol.
V-pattern strabismus is more common in both esodeviations and exodeviations the reported range is from 59% to 100% (15) Affected patients typically demonstrate moderate to severe inferior oblique overaction and mild to moderate superior oblique underaction.
Imaging studies will yield valuable information when documentation of previous surgery is unavailable, when orbital repositioning has been performed, or when there is marked apparent oblique dysfunction (such as IO overaction, SR or SO underaction).
unilateral superior oblique palsy with inferior oblique muscle overaction. Yonsei Medical Journal.
The effect of weakening the overaction superior oblique muscles on the status of ocular torsion.
Anterior transposition of inferior oblique muscle for treatment of unilateral superior oblique muscle palsy with inferior oblique muscle overaction. Yonsei Med J.