Fundus autofluorescence imaging: review and perspectives

Area of Science:

• Ophthalmology
• Medical Imaging
• Retinal Diseases

Background:

• Lipofuscin accumulation in retinal pigment epithelium (RPE) is a key factor in retinal diseases.
• Fundus autofluorescence (FAF) imaging visualizes lipofuscin distribution in the RPE.
• FAF provides insights into disease pathogenesis beyond conventional imaging.

Purpose of the Study:

• To review the principles and findings of FAF imaging in various retinal diseases.
• To highlight the diagnostic and monitoring capabilities of FAF.
• To emphasize FAF's role in understanding disease mechanisms.

Main Methods:

• Topographic mapping of lipofuscin and other fluorophores in the retina.
• Utilizing FAF imaging as a noninvasive diagnostic tool.
• Reviewing existing literature on FAF principles and applications.

Main Results:

• FAF imaging allows detailed mapping of lipofuscin in RPE cells.
• Excessive lipofuscin is linked to hereditary and complex retinal diseases, including AMD.
• FAF aids in understanding pathophysiology, diagnosis, genotype-phenotype correlation, and therapy monitoring.

Conclusions:

• FAF imaging is a valuable, noninvasive tool for retinal disease assessment.
• It offers unique information compared to traditional imaging methods.
• FAF enhances understanding and management of retinal conditions like AMD.