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Extraocular muscle-tendon transfer with scleral augmentation
American Journal of Ophthalmology
|June 1, 1980
Summary
This study presents a novel surgical technique for severe exotropia using preserved scleral strips to reconstruct the medial rectus muscle. The procedure improved eye alignment in two patients with absent medial rectus muscles.
Area of Science:
- Ophthalmology
- Surgical Techniques
- Strabismus Surgery
Background:
- Severe exotropia, particularly with an absent medial rectus muscle, presents a significant surgical challenge.
- Existing treatments may have limitations in restoring full ocular alignment and function.
Observation:
- Two patients with 90 prism diopters of exotropia and absent medial rectus muscles underwent a novel surgical procedure.
- The nasal halves of the superior and inferior rectus muscles were connected using a preserved scleral strip, anchored to the medial rectus insertion site.
Findings:
- Post-operative alignment improved in the primary position, with residual exodeviation of 25 and 20 prism diopters.
- Both patients required secondary conjunctival recession due to dellen formation.
Implications:
- This scleral graft technique offers a potential solution for complex cases of exotropia with medial rectus palsy.
- Further research is warranted to evaluate the long-term efficacy and safety of this reconstructive approach.