How to build a fake eyelight setup (for Arnold)

Hi! I’m Martin. I work as a lighter and for the last films we worked on, we switched to using a fake eye highlight instead of actually lighting it. This was a big time saver.
However- with Blood&Clay https://bloodandclay.com/ - I am on my own. I am by now means a TD and I am kind of stuck. I only have a vague idea what to do: I know I need to project the fake eyelight( a circular ramp?) on top of the eyeglass-shader, but that’s it. Could someone point me in the right direction or have an example at hand? That would be nice. Thank you.