EzSkin 3 usually works fine on older figures, to make them suitable for SuperFly rendering. But if its use then leaves you with great-looking skin but white eye-pupils, then try:-

Material Room > Pupil material > Alternate Diffuse > follow to find its Scatter node > then turn the color there to a very dark grey (almost black).

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Learn the Secrets of Poser 11 and Line-art Filters.