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       XXIV Annual Congress of the Iranian Society of Ophthalmology        بـیــست و چهارمین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران
مقاله Abstract


Title: Clinical features and surgical outcomes of isolated inferior rectus muscle paralysis
Author(s): Mohammad Reza Akbari, MD, Arash Mirmohammadsadeghi, MD, Ahmad Ameri, MD,Alireza Keshtkar Jaafari, MD
Presentation Type: Oral
Subject: Strabismus & Neuro-ophthalmology
Others:
Presenting Author:
Name: Mohammad reza Akbari
Affiliation :(optional) Strabismus Department, Farabi Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran
E mail: mrakbari83@hotmail.com
Phone: 021-55421113
Mobile: 09123984556
Purpose:

To describe clinical features of patients with unilateral isolated inferior rectus (IR) muscle paralysis along with type of surgical treatment and results after surgery.

Methods:

Patients diagnosed with unilateral isolated IR muscle palsy between 2009 and 2012 that required surgical treatment were included in the study. Diagnosis of IR muscle palsy was done by hypertropia with the largest angle in depression and abduction and inferior rectus muscle underaction.

Results:

Twenty-two patients remained in the study; 17 patients (77.3%) had left eye involvement. IR muscle paresis was traumatic in 12 patients (54.5%), congenital in 9 patients (40.9%), and vascular in 1 patient (4.5%). 3 patients, paradoxically, had contralateral compensatory head tilt . The surgical plan at the first operation was IR muscle resection alone in 13 patients (59.1%). At the last follow-up visit, 15 patients (68%) had no deviations in primary position and downgaze. Three cases needed reoperation.

Conclusion:

The presence of both ipsilateral and contralateral compensatory head postures in our patients showed that three-step or head-tilt test is not helpful in the diagnosis of IR muscle palsy. In comparison with other studies, more patients in our study were treated with IR muscle resection alone. Also, our reoperation rate was lower than other studies.

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  - بـیــست و چهارمین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران