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Risk factors for corneal endothelial cell loss after phacoemulsification.

Natalie Si-Yi Lee1,2, Keith Ong3,4,5,6

  • 1Faculty of Medicine, University of New South Wales, Sydney, Australia.

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|April 24, 2024
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Cataract surgery significantly reduces corneal endothelial cell density (CECD) in the first year. Factors like age and ultrasound metrics influence this cell loss, impacting vision post-surgery.

Keywords:
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Area of Science:

  • Ophthalmology
  • Corneal Science
  • Surgical Outcomes

Background:

  • Cataract phacoemulsification is a common surgical procedure.
  • Maintaining corneal health post-surgery is crucial for visual recovery.
  • Corneal endothelial cell density (CECD) is a key indicator of corneal health.

Purpose of the Study:

  • To evaluate changes in corneal endothelial cell density (CECD) after cataract phacoemulsification.
  • To identify patient and surgical factors associated with CECD loss.

Main Methods:

  • Retrospective study of 223 eyes undergoing cataract surgery.
  • Preoperative and 12, 24, 36-month postoperative CECD measurements via specular microscopy.
  • Analysis of demographic data, biometric parameters, and ultrasound metrics (TOT, CDE).

Main Results:

  • Mean CECD decreased significantly from baseline (2530 cells/mm²) to 36 months post-surgery (2243 cells/mm²).
  • Cell loss was associated with age, gender, preoperative CECD, anterior chamber depth, lens thickness, total on time (TOT), and cumulative dissipated energy (CDE).
  • Age, preoperative CECD, and TOT were independent predictors of CECD loss at 12 months.

Conclusions:

  • The most significant CECD decrease occurs within the first year after cataract surgery.
  • Both patient baseline characteristics and intraoperative ultrasound parameters influence CECD loss.
  • Further long-term prospective studies with larger cohorts are recommended.