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Study results support use of single-muscle recession in esotropia, exotropia
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SAN ANTONIO — In addition to the traditional recession-resection procedure to treat horizontal sensory strabismus, single-muscle recession may be effective, particularly for deviations of 30 ∆D or less, according to researchers here.
"Surgery for sensory strabismus is generally performed in the eye with low vision, and recession-resection is the usual procedure, although one-muscle resection may be preferred in smaller deviations," Luisa M. Hopker, MD, and colleagues reported in a poster at the American Association for Pediatric Ophthalmology and Strabismus meeting.
In a retrospective review of 83 patients undergoing unilateral horizontal surgery for sensory strabismus, 36 for esotropia and 47 for exotropia, 42 underwent one-muscle recession and 41 underwent monocular recession-resection.
"The similar dose response between the single-muscle recession and recess-resect groups (3.4 vs. 3.7 ∆D/mm) supports the use of one-muscle recession in either esotropia or exotropia provided the deviation does not exceed 25 to 30 ∆D," the study authors said.
The advantages of one-muscle recession include fewer over-corrections, shorter operative time and a remaining fresh muscle when reoperation is indicated, the researchers said.
- Disclosure: Dr. Hopker has no relevant financial disclosures.