Multicolor Fundus Imaging of Polypoidal Choroidal Vasculopathy

Area of Science:

• Ophthalmology
• Medical Imaging
• Retinal Diseases

Background:

• Polypoidal choroidal vasculopathy (PCV) is a distinct subtype of neovascular age-related macular degeneration.
• PCV has unique clinical characteristics, treatment responses, and visual outcomes.
• Novel imaging techniques are needed to better understand and diagnose PCV.

Purpose of the Study:

• To describe the features of PCV using multicolor imaging.
• To compare multicolor imaging findings with standard color fundus photography (CFP).

Main Methods:

• A cross-sectional study involving 50 treatment-naive PCV patients.
• Multimodal imaging including CFP, multicolor imaging, fluorescein angiography, and ICGA was performed.
• Retinal specialists graded images to identify PCV lesion components and compare findings across imaging modalities.

Main Results:

• Multicolor imaging detected polyps in 98% of patients, appearing as dark gray/green oval lesions.
• Branching vascular networks (BVN) were observed in 60% of patients.
• Other detected features included pigment epithelial detachments (PEDs), hemorrhages, and drusen.

Conclusions:

• Multicolor imaging is highly effective in detecting polypoidal lesions in PCV patients.
• PCV lesion appearance on multicolor imaging differs from CFP but correlates in location and shape.
• Multicolor imaging serves as a valuable noninvasive tool for PCV detection, potentially indicating the need for ICGA.