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Acquired oculomotor muscle fibrosis in infant: case report
Carlos Ramos de Souza-Dias1, Mauro Goldchmit, Carlos Fumiaki Uesugui
1Ophthalmology Department, Faculdade de Ciências Médicas, Santa Casa de Misericórdia de São Paulo, São Paulo, SP, Brazil. csdias@uol.com.br
Insights
This case study details a complex strabismus surgery in a 5-year-old boy with a deviated right eye. Multiple surgical interventions successfully corrected eye alignment and improved function.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Strabismus Surgery
Background:
- A 5-year-old boy presented with progressive upward and lateral deviation of his right eye, starting at age 2.
- The patient experienced significant infraduction limitation and had a history of unsuccessful strabismus surgery.
Observation:
- Surgical findings included difficulty hooking the superior rectus muscle and passive infraduction limitation.
- Initial surgery involved superior rectus tenotomy and lateral rectus recession.
- Subsequent operations included medial rectus resection, inferior oblique transposition, inferior rectus advancement, and blepharoptosis repair.
Findings:
- Postoperative results showed improved eye alignment with residual mild hypertropia and exotropia.
- Final assessment revealed good eye position, minimal horizontal movement limitation, and a -3 limitation in vertical ductions.
- Magnetic resonance imaging suggested superior rectus fibrosis secondary to myositis.
Implications:
- This case highlights the challenges in managing complex strabismus with muscle fibrosis.
- A multi-stage surgical approach can achieve functional and cosmetic improvements in challenging pediatric cases.
- Early diagnosis and management of underlying myositis may be crucial for better outcomes in similar cases.
Abstract:
The authors report the case of a 5 year-old boy who up to 2 years old presented normal eyes, when his right eye started to deviate upward and laterally, until be hidden under the superior lid. At the surgery, a strong passive limitation to infraduction of this eye was felt. He had already been operated on in another clinic, but the surgeon could not succeed in hooking his superior rectus. With great difficulty, the only thing that we could do was a free tenotomy of the superior rectus. As the eye was equilibrated in a moderate abduction, we performed an 8 mm recession of the lateral rectus. As there was still a small hypertropia and exotropia postoperatively, we performed in a second operation an eight millimeters resection of the medial rectus, a recession with anterior transposition of the inferior oblique and an advancement of the inferior rectus according to the Romero-Apis technique, in order to avert circulatory problems to the anterior segment of the eye. As he presented a small blepharoptosis, we did, in a third surgery, a tarsectomy according to the Fasanella-Servat technique, with good result. He ended with good eye position, almost no limitation of the horizontal movements and - 3 limitation of up and down ductions. The magnetic resonance imaging showed an altered image of the superior rectus, suggesting fibrosis post myositis.
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