VISUALIZATION OF MACULAR PUCKER BY MULTICOLOR SCANNING LASER IMAGING

Area of Science:

• Ophthalmology
• Medical Imaging
• Retinal Diseases

Background:

• Epiretinal membranes (ERM) are a common cause of visual impairment.
• Accurate visualization of ERM is crucial for diagnosis and management.
• Conventional fundus photography (FP) has limitations in depicting ERM details.

Purpose of the Study:

• To compare the efficacy of multicolor imaging (MCI) versus conventional fundus photography (FP) in visualizing epiretinal membranes (ERM).
• To assess the detection and delineation of ERM surface folds by both imaging modalities.

Main Methods:

• Paired same-day images from MCI and FP of ERM patients were reviewed by masked readers.
• ERM visibility was graded using a standardized scale (0-2).
• Surface folds were counted, and individual MCI color channels (green, blue, infrared) were analyzed.

Main Results:

• MCI showed significantly higher ERM visibility scores (1.8 vs. 1.01, P < 0.001) and detected more surface folds per quadrant (6.79 vs. 2.85, P < 0.001) than FP.
• MCI provided better visualization in 56.2% of cases, while FP failed to detect ERM in 11.4% of eyes with thinner retinas.
• The green channel in MCI demonstrated superior detection of surface folds compared to blue and infrared channels.

Conclusions:

• Multicolor imaging significantly outperforms conventional fundus photography in detecting and delineating epiretinal membranes.
• The enhanced visualization by MCI is attributed to its multi-spectral capabilities, particularly the green channel.
• MCI represents an advanced tool for improved assessment of ERM in clinical practice.