Figure 2.

ONL thicknesses in normal controls and those exposed to light. (a) ONL thickness of normal control retinas. (b–h) ONL thicknesses of light-exposed retinas (left eye) are compared with those of unexposed retinas (right eye) at the following wavelengths: 420 nm, 440 nm, 460 nm, 500 nm, 540 nm, 580 nm, and 615 nm. The data are expressed as the mean ± SD (n = 6 in each group). Comparisons between groups were performed using the unpaired t-test. * p < 0.05 and ** p < 0.01 vs. unexposed eyes.