Table 1. Mean peripapillary RNFL thickness according to RNFL quadrant and clock hour.

RNFL clock hour: the numbers inside the circle are in a clockwise direction, and those outside the circle show the mean RNFL thickness of each section (Fig. 1A-1C).

RNFL = retinal nerve fiber layer; MCI = mild cognitive impairment; AD = Alzheimer disease.