Figure 1 Acute aphakic UV‐blue phototoxicity (A_λ),¹⁰,¹²,⁷³ aphakic scotopic luminous efficiency (V'_λ),⁴⁶ melanopsin spectral sensitivity (M_λ, peak sensitivity, 479–483 nm),⁶⁸,⁶⁹,⁷⁰,⁷¹,¹⁸⁸ and melatonin suppression sensitivity (M'_λ, peak sensitivity, 459–464 nm).⁶⁶,⁶⁷,⁷² Original rather than smoothed aphakic scotopic luminous efficiency (V'_λ) data are shown.⁴⁶ The potential hazardousness of acute UV‐blue type phototoxicity increases with decreasing wavelength. Acute blue‐green retinal phototoxicity has an action spectrum similar to aphakic scotopic sensitivity because rhodopsin mediates both processes.⁴³,⁴⁴ Melatonin suppression and melanopsin sensitivity are more heavily dependent on blue light than rod (rhodopsin) mediated visual functions.