The anisotropic node is not for making shiny highlights on wet things, although people keep doing that. It's for simulating the highlights you get on a surface with fine parallel grooves, such as a CD, nylon stockings, or brushed aluminum. It will do those things if you correctly set the parameters to get it to spread the highlight out along the U or V dimension. In its default state, the total energy that is supposed to be spread out in a large long area is concentrated on a tiny spot, making it seem extremely bright. Also, traditionally people have used it on a cornea, and the cornea is usually "transparent" because people don't know how to use refraction and raytracing. One artifact of transparency is that it dims specular effects a lot. Most specular nodes seem to disappear on a transparent cornea. But the anisotropic specular, in its default state, is so hot that it overwhelms the dimming associated with transparency. Putting all this together has created the myth that it is for eye glint. The point I'm making is that the anisotropic node does funky stuff with funky geometry and UV mapping.

You probably are getting this because you have it on the iris and pupil. You should not - you should have it on the cornea. (I'm not at Poser right now - I'm assuming Sydney has a cornea.) The pupil doesn't reflect light at all, and the iris only reflects diffusely. It is the cornea and the sclera (eyewhite) that should have specular effects. The cornea should not have bump, the sclera should.

If you really want good eyes, you should be configuring the cornea to use refraction and reflection and glossy, not transparency and anisotropic.

But if you must use transparency because you don't want to force people to raytrace...
Transparency actually sort of means "nothing here", although it does let some specular show. If you use glossy instead, but crank the glossy Ks (brightness) to 10, I assure you, you will see it. The Glossy node is the correct model for glossy wetness - that's why it is called Glossy.

Alternatively, set Transparency to 1, but also plug your Glossy node >into< the Transparency channel. This will make it not transparent if a glossy highlight is needed.

On the Glossy node, reduce the Roughness to .01 or .02 and increase the Sharpness to .4 or .5.

---

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)