Comparing Inferior Oblique Muscle Myectomy with and without Displacement of Bilateral Rectus Muscles in Correction of Exotropia V Pattern with Severe Inferior Oblique Muscle Overreaction: A Pilot Study
Journal of Ophthalmic and Optometric Sciences,
Vol. 3 No. 2 (2019),
6 April 2019
,
Page 10-15
https://doi.org/10.22037/joos.v3i2.32090
Abstract
Purpose: To evaluate a new method of inferior oblique muscle myectomy with displacement of the external rectus muscles on both sides for correction of exotropia V pattern with severe inferior oblique muscle overaction.
Patients and Methods: In a pilot study, 9 patients with exotropia V pattern strabismus who were referred to Al-Zahra Ophthalmology Hospital, Tehran, Iran, in 2011 were studied in two randomly divided groups: group A underwent conventional surgical treatment including external rectus resection and inferior oblique weakening and in addition received external rectus displacement upwards while group B only received the conventional treatment.
Results: The mean V pattern before surgery in group A was 41 ± 16.7 prism diopters which changed to 6 ± 10.7 prism diopters after surgery. The mean V pattern before surgery in group B was 37.2 ± 4.3 prism diopters which changed to 19.5 ± 3.1 prism diopters after surgery. In group A, V-pattern correction was 35.0 ± 11.6 prism diopters while it was 20.2 ± 1.2 prism diopters in group B, which indicated a statistically significant difference between the two groups (P = 0.04(.
Conclusion: Our results suggest that the mean V Pattern correction among patients undergoing our modified surgical method was significantly higher than the conventional method. Further comparative studies with a higher number of participants are suggested to confirm our results.
- Exotropia; Myectomy; Treatment; Surgery.
How to Cite
References
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