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. Author manuscript; available in PMC: 2008 Nov 16.
Published in final edited form as: J Opt Soc Am A Opt Image Sci Vis. 2006 Jul;23(7):1570–1577. doi: 10.1364/josaa.23.001570

Fig. 4.

Fig. 4

Peak amplitude of the S-cone impulse response as a function of age. Solid line denotes the least-squares linear regression line for all observers except the two denoted by the × (for IOL or glaucoma patients). Open circles and squares denote those older observers with shorter and longer durations (as illustrated in Fig. 5), respectively.