Fig. 1.

SD-OCT image of the typical GCC and RNFL analysis figures of a 68-year-old patient with AD, a 65-year-old patient with MCI, and a 72-year-old NC subject. The software automatically compared the measured thickness to the age-matched database, generating the map and a significance color-coded to match thickness. The left line was GCC analysis, and the right line was p-RNFL analysis. The green zone means within the normal range (P = 5%–95%), the yellow zone means borderline values (1% < P < 5%), the red zone means outside the normal range (P < 1%). Abbreviations: AD, Alzheimer's disease; GCC, ganglion cell complex; MCI, mild cognitive impairment; RNFL, retinal nerve fiber layer; NC, normal control; SD-OCT, spectral domain optical coherence tomography.