Case Reports in Ophthalmology (Jan 2014)

Modified Muscle Transposition Procedure for a Case of Inferior Rectus Muscle Aplasia

  • Shinji Makino,
  • Kozue Hozawa,
  • Reiko Kondo,
  • Mika Kanai,
  • Haruko Suto,
  • Go Mawatari,
  • Kanako Ito

DOI
https://doi.org/10.1159/000371508
Journal volume & issue
Vol. 6, no. 1
pp. 1 – 6

Abstract

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Purpose: We report a case of inferior rectus muscle aplasia in a 65-year-old woman. Methods: Images were obtained using ocular motility photography and magnetic resonance imaging (MRI), and operative findings were analyzed. Results: A 65-year-old woman presented with marked right hypertropia. The right eye also had microcornea, iris coloboma, and completely restricted downward movement. MRI showed absence of the inferior rectus muscle in both eyes. During surgery, it was confirmed that the right inferior rectus muscle was absent. The patient underwent a muscle transposition procedure without tenotomy or muscle splitting. A superior rectus muscle tenotomy was also performed. Postoperatively, the right eye showed hypotropia and improved downward movement. Conclusion: Muscle transposition without tenotomy or tendon splitting is a surgical option for the unusual abnormality presented in this paper.

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