Glasses?

Hiya, I was just creating a wonderful character with glasses, and I was wondering is there was a way to make the material of the lens sort of magnify, or distort, or whatever it is glasses do?

With raytracing on, in the Mirror Transp tab (F5) use IOR and Fresnel greater than 0.00.

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Hm, well, it appears to be working in the preview, but when I render, nothing changes :confused:

Do you have “Ray” on in F10, Render tab?

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Yup, and it’s set to traceable in the Materials tab

Edit: But when I turn that OFF, it works o.o Okay