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Real-time corneal thickness changes during phacoemulsification cataract surgery.

Jia Hu1,2, Can Zhao2, Yan Luo2

  • 1Shandong First Medical University, Jinan, 250021, China.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie
|January 20, 2023
PubMed
Summary

Corneal thickness increases during phacoemulsification cataract surgery due to intraocular manipulation. Factors like lens hardness and ultrasound energy influence these real-time changes.

Keywords:
Corneal edema,·Intraoperative optical coherence tomographyCorneal thicknessPhacoemulsification cataract surgery

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Area of Science:

  • Ophthalmology
  • Surgical Science
  • Biomedical Engineering

Background:

  • Phacoemulsification is a common cataract surgery technique.
  • Understanding intraoperative changes is crucial for patient outcomes.

Purpose of the Study:

  • To monitor corneal thickness changes during phacoemulsification.
  • To identify factors influencing these alterations.

Main Methods:

  • 102 patients undergoing cataract surgery were studied.
  • Intraoperative Optical Coherence Tomography (OCT) captured real-time corneal images.
  • Corneal thickness was measured at multiple surgical stages.

Main Results:

  • Corneal thickness significantly increased throughout the surgery, with a total increase of 5.3%.
  • Changes correlated with age, cataract grade, phacoemulsification time, ultrasound energy, and total surgery time.
  • No correlation found with gender or specific endothelial cell morphology parameters.

Conclusions:

  • Corneal thickness progressively increases during phacoemulsification.
  • Real-time corneal changes are linked to perfusion pressure, intraocular manipulation, lens nucleus hardness, endothelial cell density, and ultrasound energy.