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Related Experiment Video

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Surgical treatment for small-angle vertical strabismus.

Pilar Merino Sanz1, Verónica Osuna1, Pilar Gómez de Liaño Sánchez1

  • 1Ocular Motility Section, Department of Ophthalmology, Hospital Gregorio Marañón , Madrid.

Strabismus
|October 16, 2020
PubMed
Summary

Partial vertical recti muscle recession effectively treats small-angle vertical strabismus and diplopia. This surgical approach achieved favorable outcomes in over 76% of patients, with no recorded overcorrections.

Keywords:
Diplopiaocular torsionpartial muscular recessionsmall-angle vertical strabismusvertical recti muscle

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Area of Science:

  • Ophthalmology
  • Strabismus Surgery
  • Neuro-ophthalmology

Background:

  • Diplopia and small-angle vertical strabismus can significantly impact visual function.
  • Vertical recti muscle recession is a surgical option for managing these conditions.

Purpose of the Study:

  • To evaluate the indications and outcomes of partial vertical recti muscle recession.
  • To assess the efficacy of this procedure in patients experiencing diplopia and small-angle vertical strabismus.

Main Methods:

  • Retrospective study analyzing 17 patients who underwent partial temporal or nasal recession of the superior rectus (SR) or inferior rectus (IR).
  • Outcome assessment focused on the resolution of diplopia in primary and downward gaze.
  • Preoperative and postoperative vertical deviations were measured and compared.

Main Results:

  • A total of 17 patients (mean age 69.11 years) were included, with diagnoses including fourth nerve paresis, hypertropia, and restrictive strabismus.
  • Mean preoperative vertical deviation of 6.11 pd significantly reduced to 2.05 pd postoperatively (p < 0.001).
  • Favorable outcomes, defined by diplopia resolution, were achieved in 76.47% of cases after a mean follow-up of 10 months; no overcorrections were noted.

Conclusions:

  • Partial recession of the superior rectus or inferior rectus muscles is a successful surgical intervention for small-angle vertical strabismus.
  • The procedure demonstrates a high rate of favorable outcomes and a low risk of overcorrection.
  • This technique offers an effective solution for patients suffering from diplopia due to vertical strabismus.