Correlation Between Angle Parameters and Central Corneal Thickness in Fuchs Endothelial Corneal Dystrophy

Area of Science:

• Ophthalmology
• Corneal Diseases
• Anterior Segment Imaging

Background:

• Fuchs endothelial corneal dystrophy (FECD) is a progressive corneal disease affecting the endothelium.
• Anterior segment optical coherence tomography (AS-OCT) is a valuable tool for assessing corneal and anterior chamber structures.

Purpose of the Study:

• To investigate the relationship between central corneal thickness (CCT) and peripheral corneal thickness (PCT) with anterior chamber parameters in patients with FECD.
• To determine if CCT or PCT correlates with angle opening distance (AOD500) and trabecular-iris angle (TIA500) in FECD patients.

Main Methods:

• A case-control study comparing 20 FECD patients with 31 healthy controls using AS-OCT.
• Measurement of CCT, PCT, lens vault (LV), TIA500, and AOD500.
• Statistical analysis to assess correlations between corneal thickness and anterior chamber parameters in FECD.

Main Results:

• FECD patients exhibited significantly higher CCT, smaller TIA500, smaller AOD500, and greater LV compared to controls.
• A significant negative correlation was found between CCT and both TIA500 and AOD500 in FECD patients.
• No significant correlations were observed between PCT and angle parameters, or between CCT and LV.

Conclusions:

• Increased CCT in FECD is associated with a narrower anterior chamber angle.
• The study demonstrates a correlation between FECD severity (indicated by CCT) and anterior chamber morphology.