Retroplacement of the Inferior Oblique at its Scleral Insertion*

Dose–response relationship in inferior oblique muscle recession

“…While some authors reject linearity of the dose-response relationship in IOM surgery [3,17], Klainguti has shown such a relationship in IOM recession for vertical deviation in adduction [27], thus supporting our data. The larger variation of effects found in our cohort does not allow judgement on the linearity of the dose-response realtionship.…”

“…The vertical effect in adduction ranged between 1.1°/mm and 1.4°/mm recession. These values are slightly higher than those reported by other authors, who found 0.8°/ mm to 1.0°/mm [3,17,27]. The vertical effect in primary gaze was between 0.5°/mm and 0.6°/mm recession, i.e.…”

“…Many authors have previously evaluated the effect of operations on oblique muscles [1, 2, 5, 6, 8-16, 21, 22, 28, 31-44, 46, 47, 49-53], but in contrast to rectus muscle surgery, for which well-defined dosage guidelines exist [23,26], only a few have systematically established a doseresponse relationship for operations on oblique muscles [3,17,27]. Some authors state that the response depends on the extent of the preoperative deviation [10,15,17,34].…”

Hang-back recession of inferior oblique muscle in V-pattern strabismus with inferior oblique overaction

“…Berens and coworkers 13 reported an average correction of 2 ⌬ for every millimeter retroplacement of the inferior oblique. Kamlesh and coworkers 12 had previously reported a mean correction of 22 ⌬ after 10 mm conventional recession of inferior oblique.…”

Historical review of inferior oblique muscle surgery

“…Many other surgeons followed his idea, and the IO recession obtained popularity. [9101112] In 1962, Dyer reported the effectiveness of IO myectomy as a simple and effective procedure,[13] and then, myectomy gained popularity as well. Costenbader compared the effectiveness of recession and myectomy of the IO,[14] and other experienced surgeons[15] started to perform myectomy.…”