Figure 4

Positive correlations between SNR and macular volumes. (a) Retinal nerve fibre layer (RNFL) and (b) ganglion cell layer (GCL) volumes were measured by three-dimensional optical coherence tomography (OCT). Analyses performed by Pearson correlation coefficient. (a) r = 0.409, P = 0.025; (b) r = 0.567, P = 0.011. SNR, signal to noise ratio.