Comparison of conventional and Hang-back methods of inferior oblique recession in V-pattern strabismus with inferior oblique overaction

Anand, Kamlesh; Bharadwaj, Ankita; Dhiman, Shweta; Goel, Yashpal; Rastogi, Anju; Agarwal, Richa; Mishra, Manisha; Kumar, Prateek

doi:10.18240/ijo.2020.06.20

Cited by 1 publication

(1 citation statement)

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“…Turan-Vural et al [24] found the macular thickness changed after IO muscle recession and suggested that more gentle and careful surgeries could prevent macular trauma. The hang-back recession technique [25] , a modified recession method, as well as myotomies makes the cutoff point far away from the dangerous area but still couldn't avoid the potential risk of hemorrhage and does comparatively more complex sutures. Arès and Superstein [26] ever reported a case of delayed retrobulbar hemorrhage occurred in the inferolateral orbit near after the IO myotomies, and they attributed bleeding to inadequate cautery of the IO muscle.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of modified inferior oblique muscle belly transposition for V-pattern exotropia combined with mild to moderate inferior oblique muscle overaction

Hao¹,

Bian²,

Li³

et al. 2023

Int J Ophthalmol

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AIM: To investigate the effectiveness of a modified inferior oblique muscle belly transposition for treatment of V-pattern exotropia combined with mild to moderate inferior oblique muscle overaction. METHODS: Thirteen cases (23 affected eyes) of V-pattern exotropia with inferior oblique muscle overaction (+ or ++) who underwent the modified inferior oblique muscle belly transposition procedure were retrospectively reviewed. The amount of V-pattern, grade of inferior oblique overaction, degree of vertical strabismus, abnormal head posture, and the fovea-disc angle were evaluated before and after surgery. RESULTS: The V-pattern was corrected in all cases, and the amount of V-pattern reduced by 17.85±5.13 prism diopter (PD) on average (t=16.07, P<0.001). The surgical cure rate for mild to moderate inferior oblique muscle overaction was 87.0% (20/23). The degree of the fovea-disc angle has a mean reduction of 5.45°±2.87° (t=3.95, P=0.003) after surgery. The mean vertical deviation in 5 cases with a small-angle hypertropia (5.23±3.06 PD) in the primary position reduced by 3.15±1.86 PD (t=6.10, P<0.001). No serious complications were observed. CONCLUSION: The modified inferior oblique muscle belly transposition procedure can effectively treat mild to moderate inferior oblique overaction and relieve the V-pattern, which is safe and easy to perform.

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Section: Discussionmentioning

confidence: 99%