2020
DOI: 10.14744/bej.2020.81904
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Surgical management of primary inferior oblique muscle overaction: a subgroup-specific surgical approach

Abstract: The aim of this research was to assess the surgical results of recession and myectomy procedures in a subgroup of patients who had primary inferior oblique muscle overaction. Methods: The records of 94 patients who had been treated due to primary inferior oblique muscle overaction were retrospectively analyzed. The patients were classified into 2 groups according to the severity of the inferior oblique hyperfunction. Recession was performed for patients with a low grade (+1 or +2) inferior oblique hyperfunctio… Show more

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Cited by 5 publications
(5 citation statements)
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“…Unlike Min et al [11] who reported that 75% of the myomectomy patients in their study developed residual overactivity. Another study was done by Ozsoy et al [1] , who included 94 patients [134 eyes] with IOOA divided into 2 groups [myomectomy and recession], they reported residual overactivity in 2.5% of the myomectomy group and 3.1% of the recession group which is lower than our results. The difference between the studies in the percentage of residual activity may be due to the difference in the preoperative degree of overaction or the difference in the definition of the overaction and underaction or missing all or part of the posterior leaf of the muscle or anatomic variations of the inferior oblique muscle or scarring of the cut ends of the muscle to the sclera.…”
Section: Discussioncontrasting
confidence: 89%
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“…Unlike Min et al [11] who reported that 75% of the myomectomy patients in their study developed residual overactivity. Another study was done by Ozsoy et al [1] , who included 94 patients [134 eyes] with IOOA divided into 2 groups [myomectomy and recession], they reported residual overactivity in 2.5% of the myomectomy group and 3.1% of the recession group which is lower than our results. The difference between the studies in the percentage of residual activity may be due to the difference in the preoperative degree of overaction or the difference in the definition of the overaction and underaction or missing all or part of the posterior leaf of the muscle or anatomic variations of the inferior oblique muscle or scarring of the cut ends of the muscle to the sclera.…”
Section: Discussioncontrasting
confidence: 89%
“…The Exclusion criteria were: [1] Patient refuse to participate in the study, [2] Grade 1 IOOA, [3] Secondary inferior oblique over action, [4] Inferior oblique over action with dissociated vertical deviation [DVD], and [5] Recurrent or residual inferior oblique over action.…”
Section: Methodsmentioning
confidence: 99%
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“…IOOA persisted in 3 eyes (3.1%),. One patient had + 2 IOOA and 2 had + 1 IOOA [27]. Parks concluded that the IO recession procedure was superior.…”
Section: Discussionmentioning
confidence: 97%
“…9 Insignificant differences were also observed in other studies. [10][11][12] In contrast, some studies have found a statistically significant difference between the two procedures. In 1999, Min et al found that anterior transposition appeared to be more effective in treating IOOA with a success rate of 85%, which is higher than the 25% success rate for myectomy.…”
Section: Introductionmentioning
confidence: 94%