Neat! I've occasionally looked into getting into DIY microfluidics, and one of the lowish-tech ideas I've seen is etching/engraving CD cases or other polystyrene sheets and baking them: this makes them shrink quite predictably, allowing for some really tiny channels. In arts & crafts they call them "Shrinky Dinks". PDMS is another interesting material, and could perhaps be somehow combined with 3D printing channels with alcohol-soluble polymers to print + dissolve the channels...

This is great! I heard of a rare form of Glaucoma that does not have to do with high eye pressure but blood flow to the optic nerve, they think it is a genetic type issue.

I know some who has it and so far so good using the eye-drops. But they were told to try avoid low blood pressure in order to increase blood flow to the nerve. I wonder if these lenses could help too, but they would need to have a lower eye pressure trigger then for "normal" Glaucoma.