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Yeon Woong Chung, Jun Sub Choi, Sun Young Shin
BACKGOUND: To identify and compare specific protein levels between overacting inferior oblique (IO) muscles in superior oblique (SO) palsy patients and normal IO muscles. METHODS: We obtained 20 IO muscle samples from SO palsy patients with IO overaction ≥ + 3 who underwent IO myectomies (IOOA group), and 20 IO samples from brain death donors whose IO had functioned normally, according to their ophthalmological chart review (control group). We used MyoD for identifying satellite cell activation, insulin-like growth factor binding protein 5 (IGFBP5) for IGF effects, thioredoxin for oxidative stress, and p27 for satellite cell activation or oxidative stress in both groups...
May 30, 2018: BMC Ophthalmology
Bo Ram Seol, Ho Kyung Choung, Seong Joon Kim
PURPOSE: To analyze stereopsis change before and after inferior oblique weakening surgery. METHODS: We retrospectively reviewed the medical records of 31 patients who had undergone inferior oblique weakening surgery. The factors analyzed included sex, age at surgery, preoperative and postoperative visual acuity (VA), time from first detection to surgery, degree of inferior oblique overaction (IOOA), primary/secondary IOOA, exotropia/hypertropia, bilaterality, and type of surgery...
April 2018: Korean Journal of Ophthalmology: KJO
Zhale Rajavi, Mohadeseh Feizi, Ali Naderi, Hamideh Sabbaghi, Narges Behradfar, Mehdi Yaseri, Mohammad Faghihi
PURPOSE: To report the surgical outcomes of graded versus ungraded inferior oblique anterior transposition (IOAT) in treatment of patients with asymmetric dissociated vertical deviation (DVD) and bilateral inferior oblique overaction (IOOA). METHODS: A total of 74 eyes of 37 patients with asymmetric DVD (interocular difference of ≥5Δ ) and bilateral IOOA of > +1 were included in this randomized clinical trial. In the ungraded group (n = 18), both inferior oblique muscles were sutured at the inferior rectus level; in the graded group (n = 19), the inferior oblique muscles of eyes with more DVD were sutured at the level of the inferior rectus and inferior oblique muscles of eyes with less DVD were sutured 2 mm posterior to the level of the inferior rectus muscle...
December 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Kadriye Erkan Turan, Hande Taylan Sekeroglu, Ali Sefik Sanac
PURPOSE: To describe the characteristics of children who had subsequent contralateral superior oblique underaction (SOUA) and inferior oblique overaction (IOOA) after unilateral inferior oblique weakening surgery and to identify suggestive clinical features for masked bilateral fourth nerve palsy. METHODS: The medical records of children who underwent unilateral inferior oblique tenotomy as a single procedure for unilateral superior oblique palsy were all reviewed...
July 5, 2017: International Ophthalmology
Zhale Rajavi, Mohadeseh Feizi, Narges Behradfar, Mehdi Yaseri, Shima Sayanjali, Tahmine Motevaseli, Hamideh Sabbaghi, Mohammad Faghihi
PURPOSE: To compare the efficacy of inferior oblique myectomy and anterior transposition for correcting inferior oblique overaction (IOOA). METHODS: This retrospective study was conducted on 56 patients with IOOA who had either myectomy or anterior transposition of the inferior oblique muscle from 2010 to 2015. The authors compared preoperative and postoperative inferior oblique muscle function grading (-4 to +4) as the main outcome measure and vertical and horizontal deviation, dissociated vertical deviation (DVD), and A- and V-pattern between the two surgical groups as secondary outcomes...
July 1, 2017: Journal of Pediatric Ophthalmology and Strabismus
Suk-Gyu Ha, Gun-Hoo Na, Seung-Hyun Kim
PURPOSE: To evaluate the effects of bilateral inferior oblique transposition (BIOT) on horizontal deviation from primary position among patients with bilateral dissociated vertical deviation (DVD) associated with inferior oblique overaction (IOOA) in infantile strabismus. METHODS: Retrospective chart review was conducted among 19 patients with infantile strabismus. All patients had DVD and IOOA with consecutive or recurrent horizontal deviation and underwent modified BIOT surgery...
April 2017: Korean Journal of Ophthalmology: KJO
Dong Cheol Lee, Se Youp Lee
BACKGROUND: Several inferior oblique (IO) weakening methods exist for correction of superior oblique palsy (SOP). A previously reported method involved recession and anteriorization according to IO overaction (IOOA) grade, which might be subjective and cause upgaze limitation and opposite vertical strabismus. Therefore, this study attempted to examine the efficacy of modified graded recession and anteriorization of the IO muscle in correction of unilateral SOP without resulting in upgaze limitation or opposite vertical strabismus...
March 14, 2017: BMC Ophthalmology
Sun Jung Eum, Bo Young Chun
PURPOSE: The purpose of this study is to compare the magnitude and axis of astigmatism induced by a combined inferior oblique (IO) anterior transposition procedure with lateral rectus (LR) recession versus LR recession alone. METHODS: Forty-six patients were retrospectively analyzed. The subjects were divided into two groups: those having concurrent inferior oblique muscle overaction (IOOA) and intermittent exotropia (group 1, 20 patients) and those having only intermittent exotropia as a control (group 2, 26 patients)...
December 2016: Korean Journal of Ophthalmology: KJO
Ahmed Awadein, Dina El-Fayoumi, Rasha H Zedan
PURPOSE: To study the changes in fundus torsion and in the axis of astigmatism following inferior oblique (IO) myectomy in patients with inferior oblique overaction (IOOA). METHODS: The degree of fundus torsion and corneal astigmatism were prospectively evaluated before and 3 months after IO myectomy in patients with IOOA grade +2 or more in one or both eyes and an astigmatic error of ≥1 D. Fundus torsion was evaluated by measuring the disk foveal angle (DFA) using fundus photography...
August 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Kun-Hoo Na, Seung-Hyun Kim
PURPOSE: To evaluate the long-term surgical outcomes and the clinical features between infantile-onset constant and intermittent exotropia. METHODS: The medical records of 67 patients diagnosed as having infantile exotropia before 12 months of age who underwent surgery were reviewed retrospectively. Patients were divided into intermittent exotropia and constant exotropia groups based on presentation before surgery. All patients underwent bilateral lateral rectus recession...
March 2016: Journal of Pediatric Ophthalmology and Strabismus
J Krásný
AIM: To familiarize with the form of combined horizontal and vertical deviations and its development and put it into the context of eighteen years of strabismus surgery analysis. MATERIAL AND METHODS: During the period from 1996 to 2014, there were at the Department of Ophthalmology, 2nd Medical Faculty, Charles University and Faculty Hospital Královské Vinohrady, Prague, Czech Republic, E.U., operated on 2 248 patients due to the eye position misalignment. The surgery of dynamic (comitant) strabismus (esotropia, exotropia, vertical deviations and their combinations) was altogether performed in 81...
December 0: Ceská a Slovenská Oftalmologie
M F Farid
PURPOSE: To compare results of two surgical techniques; anteriorization (ATIO) vs anterior nasalization (ANT) of IO muscle in management of DVD associated with IOOA. METHODS: Twenty-one patients with DVD associated with IOOA were included in this study. Group A consists of 11 patients who underwent ATIO and group B with 10 patients who underwent anterior transposition of IO to the nasal border of inferior rectus ANT. All patients were followed for at least 6 months postoperatively...
April 2016: Eye
Jasmina Alajbegovic-Halimic, Denisa Zvizdic, Amra Sahbegovic-Holcner, Amira Kulanic-Kuduzovic
INTRODUCTION: Inferior oblique overaction (IOOA) can be primary or secondary, isolated or combined to other types of horizontal deviation, mostly with esotropias. Surgical weakening of IOOA means several techniques like; recession, myotomy, myectomy, anteroposition etc. GOALS: we analyzed the effect of inferior oblique muscle surgical weakening comparing two groups of patients with primary hypertropia. MATERIAL AND METHODS: In 5-years retrospective study, we observed 33 patients on which we did the surgical procedure of weakening inferior muscle overaction by two methods; recession and myotomy...
June 2015: Medical Archives
Ismail Ersan, Refik Oltulu, Orhan Altunkaya, Gunhal Satirtav, Sedat Arikan, Meryem Donbaloglu, Ahmet Ozkagnici
PURPOSE: To evaluate the macular and subfoveal choroidal thickness of eyes with inferior oblique muscle overaction (IOOA) using enhanced depth imaging spectral domain optical coherence tomography (EDI SD-OCT). METHODS: The measurements of macular and subfoveal choroidal thickness obtained by EDI SD-OCT of patients with IOOA (24 patients) were compared with those of age- and sex-matched controls (25 subjects). RESULTS: There were no morphological abnormalities of the macula in patients with IOOA or in control subjects...
February 2015: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
Mostafa Soltan Sanjari, Kourosh Shahraki, Shahbaz Nekoozadeh, Seyed-Morteza Tabatabaee, Kianoush Shahraki, Kaveh Abri Aghdam
PURPOSE: To compare the outcomes of surgical procedures in the treatment of inferior oblique muscle overaction (IOOA) as a common disorder of ocular motility. METHODS: This retrospective study was performed on patients with primary and secondary IOOA who underwent three surgical treatment procedures including disinsertion, myectomy and anterior transposition, between 2001 and 2011. Type of strabismus, ocular alignment, presence of pre-and post-operative dissociated vertical deviation (DVD), pre- and post-operative degree of IOOA were obtained using specified checklist...
July 2014: Journal of Ophthalmic & Vision Research
Eun-Joo Yoo, Seung-Hyun Kim
PURPOSE: Inferior oblique anterior transposition (IOAT) should be done only in patients with inferior oblique overaction (IOOA) and dissociated vertical deviation (DVD) without fusional potential because the procedure can cause anti-elevation syndrome. This study reports the results of modified inferior oblique transposition onto the equator in 7 patients diagnosed with infantile exotropia or esotropia associated with IOOA and DVD. METHODS: We performed modified inferior oblique (IO) transposition onto or considering the equator on 7 patients who had infantile exotropia or esotropia associated with IOOA and DVD...
March 2014: Strabismus
Hande Taylan Sekeroglu, Ozlem Dikmetas, Ali Sefik Sanac, Emin Cumhur Sener, Umut Arslan
Objective. To evaluate and quantify the effect of inferior oblique muscle weakening on horizontal deviations. Methods. The medical files of patients who had undergone an inferior oblique weakening as a single procedure were all reviewed. The main measures were the type of inferior oblique overaction (IOOA), pre- and postoperative amount of IOOA, and horizontal deviations in primary position. Results. The study was conducted with 66 patients (30 males, 36 females). The median age was 11 years (1-49). Of the 66 patients, 30 (45...
2012: Journal of Ophthalmology
Yong-Min Choi, Seung-Hyun Kim
PURPOSE: To compare the clinical outcomes and characteristics of 2 different types of early-onset exotropia on the basis of stereopsis outcome. DESIGN: Retrospective case series. PARTICIPANTS: A total of 24 patients with newly diagnosed exotropia before 12 months of age and at least 1 year of follow-up after surgery. METHODS: The clinical records of all patients were reviewed. Patients were divided into 2 groups according to stereopsis...
January 2013: Ophthalmology
Yoonae A Cho, Youngsub Eom, Young-Woo Suh
OBJECTIVE: To evaluate the relationship between fundus extorsion before surgery and the development of inferior oblique overaction (IOOA) and dissociated vertical deviation (DVD) after surgery in patients with infantile esotropia. DESIGN: Retrospective comparative observational study. PARTICIPANTS: Forty patients who had not had preoperative IOOA or DVD, and had undergone surgery for infantile esotropia were included. METHODS: A fundus examination was carried out under general anesthesia before surgery...
October 2011: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
Seung-Hyun Kim, Jae-Hoon Na, Yoonae A Cho
PURPOSE: To investigate the role of the location of the equator and orientation of newly attached inferior oblique (IO) muscle in the development of contralateral inferior oblique overaction (IOOA). METHODS: Fourteen patients (14 eyes) with 5 to 12 prism diopters (PD) of hyperdeviation in primary position with unilateral, congenital, superior oblique palsy were included. Seven patients underwent modified IO transposition onto the equator (equator group) and seven patients underwent modified IO 14-mm recession (14-mm group)...
March 2012: Journal of Pediatric Ophthalmology and Strabismus
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