Traumatic transection of the lateral rectus muscle with chorioretinitis sclopetaria

Strabismus
Kelly MacKenzieNadeem Ali

Abstract

A man, aged 67 years, sustained monocular trauma to the left eye while gardening, presenting with light perception, complete absence of abduction, and chorioretinitis sclopetaria. At surgery, the lateral rectus was found to be transected at the equator of the globe, with an area of locally abraded sclera. A few posterior muscle fibers were identified and sutured to the residual anterior fibers. With a partial improvement of the esodeviation, after a further 6 months he proceeded to lateral transposition of the superior and inferior recti to healthy sclera 4 mm from the limbus, with adjunctive medial rectus botulinum toxin. Six months later, the angle of primary deviation remained stable at 4 prism diopters base out with improved abduction. Vision in the eye remained reduced at 20/200 (with eccentric fixation) due to macular changes secondary to the sclopetaria. In conclusion, this case describes a rare example of complete traumatic transection of the lateral rectus with chorioretinitis sclopetaria, due to orbital injury. With appropriate surgery, the angle of deviation can be considerably improved despite complete muscle transection and scleral injury.

References

Jun 1, 1976·American Journal of Ophthalmology·E M Helveston, R D Grossman
Mar 1, 1992·The British Journal of Ophthalmology·C J MacEwenP Fells
Oct 20, 2001·Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus·R Ling, A G Quinn
Dec 31, 2002·Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus·Christopher P R WilliamsRobert J Morris
Feb 6, 2004·Eye·L O'TooleM O'Connor
Jun 25, 2009·Strabismus·Kimberly G Yen, Michael T Yen

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