Research Article

Early Detection of Incipient Retinal Pigment Epithelium Atrophy Overlying Drusen with Fundus Autofluorescence vs. Spectral Domain Optical Coherence Tomography

Table 1

Percentage of drusen showing incipient atrophy of the retinal pigment epithelium detected first with each imaging tool.

Imaging exam detecting first GA signsnPercentage (95% CI)

Fundus autofluorescence51/13338.4 (30.1 to 47.2)
SD-OCT30/13322.6 (15.8 to 30.6)
Simultaneously on both exams52/13339.1 (30.8 to 47.9)

Percentages do not add up to 100% due to rounding. CI: confidence interval; SD-OCT: spectral domain optical coherence tomography.