Managing Pseudophakic Corneal Edema: Structural Changes and Preliminary Observations on Coenzyme Q10 Use

Area of Science:

• Ophthalmology
• Corneal Surgery
• Biochemistry

Background:

• Pseudophakic corneal edema (PCE) is a common postoperative complication after cataract surgery.
• It can significantly impact visual recovery and refractive results.
• Understanding the factors influencing PCE resolution is crucial for improving patient outcomes.

Purpose of the Study:

• To investigate the relationship between keratometric and pachymetric changes during PCE resolution.
• To evaluate factors influencing the resolution of pseudophakic corneal edema.
• To examine the efficacy of coenzyme Q10 (CoQ10) as an adjunct therapy for PCE.

Main Methods:

• Retrospective analysis of 88 patients aged 50+ who developed PCE post-phacoemulsification.
• Corneal assessments using Pentacam HR for keratometric and pachymetric changes.
• Weekly monitoring until PCE resolution; subset received CoQ10 adjunct therapy.

Main Results:

• Significant improvement in visual acuity (p < 0.001).
• Persistent keratometric changes (posterior steepening, anterior asphericity) despite pachymetric normalization.
• CoQ10 group showed faster edema resolution (p = 0.019), reduced corneal thickness (p = 0.003), and improved transparency.
• Higher cumulative dissipated energy linked to increased edema severity and slower recovery.
• Diabetes prolonged recovery (p = 0.018).

Conclusions:

• Visual acuity and pachymetry improved, but persistent topographic changes indicate incomplete structural normalization.
• Adjunctive CoQ10 may enhance corneal edema resolution, leading to faster recovery and favorable structural changes.
• Further prospective studies are needed to validate these findings.