Figure 5. Retinal spectra of the same age men in different degrees of dementia among dementia group (n = 34), MCI group (n = 22), and Normal group (n = 23). (A–E) show the different region in the retina (A) F, (B) I1, (C) I2, (D) S1, and (E) S2. Positions I2 and S2 show the difference in the wavelength range from 600 to 750 nm. Data shown as mean normalized spectrum.