Evolution of eyesight on a planet with a Methane biochemistry?

If we assume their homeworld is similar to Titan, but instead orbiting a Neptune sized gas giant and a bit bigger and receiving the same amount of Solar energy as Titan, The star is a main sequence G type star, and the moon has a surface gravity of 0.28 G's. The atmosphere isn't smoggy like Titan so more light reaches the surface. What wavelengths are they likely to see in? If they came to Earth and observed the planet would they be able to see it like Humans do? Also would it be possible for them to have eyes that resemble some of Earth's species?

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Evolution of eyesight on a planet with a Methane biochemistry?

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