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Corneal dellen development after strabismus surgery.

Ahmet Kürşad Sakallioğlu1, Rüveyde Garip1

  • 1Department of Ophthalmology, Trakya University School of Medicine, Edirne.

Strabismus
|November 1, 2021
PubMed
Summary
This summary is machine-generated.

Corneal dellen, a complication of strabismus surgery, occurred in 3.7% of cases. Factors like age and specific surgical techniques, particularly muscle resection, influence its development and healing time.

Keywords:
Corneadellenstrabismus surgery

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Area of Science:

  • Ophthalmology
  • Surgical Complications
  • Corneal Health

Background:

  • Corneal dellen are a known, though infrequent, complication following ocular surgery.
  • Understanding the factors influencing their development and healing is crucial for patient management.
  • Strabismus surgery, particularly involving limbal approaches, presents a specific context for evaluating dellen formation.

Purpose of the Study:

  • To determine the incidence of corneal dellen after strabismus surgery.
  • To investigate the healing process and identify factors affecting dellen development and resolution.
  • To analyze the correlation between patient demographics, surgical techniques, and corneal dellen occurrence.

Main Methods:

  • Retrospective analysis of 714 eyes from 1264 patients undergoing limbal approach strabismus surgery (January 2005 - January 2020).
  • Inclusion of 47 eyes diagnosed with corneal dellen.
  • Data collection included patient demographics, surgical details (type, muscles involved), dellen occurrence/healing times, and localization.

Main Results:

  • The overall incidence of corneal dellen was 3.7%.
  • Age showed a moderate positive correlation with both the time to dellen occurrence (r=0.387, p=0.007) and healing time (r=0.376, p=0.014).
  • Monocular two-muscle surgery and single-muscle rectus resection surgery were associated with significantly higher rates of dellen formation compared to single-muscle surgery and single-muscle rectus recession surgery, respectively (p<0.001 for both).

Conclusions:

  • Corneal dellen formation is more frequent after strabismus surgery involving muscle resection.
  • Dellen develop earlier in younger patients and heal more slowly in elderly patients.
  • Close patient monitoring is recommended post-strabismus surgery, especially after resection procedures, to manage potential dellen development.