If you're using the VSS eye shaders, and you aren't using ray-tracing, you're missing out on a big part of the realism.

There is AO in my eyewhite shader and if you don't let it be active, you'll get bad results.

Enable ray-tracing if you haven't.

There is also plenty of specular in the VSS eye shaders. If you have a light at the right position it will show up.

I can make eye shaders with reflection, but unless you set up a window or something in front of the character it won't do much. You need to have something HDRI behind the camera to make a difference with that. If you use my environment sphere and put an HDRI photo of an interior with a window in it, and you rotate the image to ensure that a reflection of the window will show in the eyes, then it might be worth adding reflection to the eye shaders.

I can do that for you if you like - set up reflecting eye shaders. Be prepared for longer renders. Although realism generally demands that, many folks are too impatient to do this kind of stuff.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)