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Related Experiment Video

Updated: Aug 9, 2025

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
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Corneal Astigmatic and Refractive Changes after Rectus Muscle Surgery.

Abdolreza Medghalchi1, Mitra Akbari1, Reza Soltani Moghadam1

  • 1Eye Research Center, Department of Eye, Amiralmomenin Hospital, School of Medicine, Guilan University of Medical Science, Rasht, Iran.

Maedica
|February 23, 2023
PubMed
Summary

Strabismus surgery on rectus muscles can cause lasting myopic shifts and with-the-rule astigmatism. These refractive changes are common and persist for at least six months post-operation.

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Area of Science:

  • Ophthalmology
  • Surgical Outcomes
  • Refractive Error

Background:

  • Strabismus surgery aims to correct eye alignment.
  • Understanding postoperative refractive and astigmatic changes is crucial for patient management.

Discussion:

  • Observed a consistent myopic shift across all deviation groups.
  • Spherical equivalent (SE) values varied by surgery type at 1 and 3 months postoperatively.
  • Medial rectus (MR) recess + inferior oblique (IO) myectomy showed the most significant SE changes.

Key Insights:

  • Postoperative astigmatism (J0) remained significant at 6 months in MR recess and medial/lateral rectus recess groups.
  • Astigmatism components (J0 and J45) differed significantly based on surgical approach.
  • Mean keratometry showed the most pronounced changes in MR recess and MR recess + IO myectomy groups.

Outlook:

  • Refractive error shifts towards myopia and with-the-rule (WTR) astigmatism are common sequelae.
  • These refractive and astigmatic alterations tend to be stable up to six months post-surgery.
  • Further research may explore long-term refractive stability and management strategies.