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. 2020 Apr 1;12:57–66. doi: 10.2147/OPTO.S242818

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© 2020 Tavazzi et al.

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Transmittance spectra (axis on the left) of the ST and PRO filters (plano lenses) and transmittance spectrum (axis on the right) of the human macular pigment (MP) taken from the optical density (OD) reported in Werner et al¹¹ (transmittance = 10^−OD). Inset: spectrum obtained by subtracting the OD of the ST plano-lens from the OD of the PRO plano-lens, where OD is defined as Log(1/transmittance). The range of OD values (ordinate axis) in the inset is 0.00–0.07.