Most fabrics are knitted or woven, but some are produced by non-woven processes such as braiding, felting, and twisting. Applied loosely, 'fabric' also includes laces, meshes, and nets. See also textile.
I think having any lemons or drinking lemon juice (even straight) is good for you. I don't really know the health benefits, but that is what I have heard. I never heard about it being bad for one's teeth, but I suppose it could be.
However, lemons contain citric acid, and applying lemon juice directly to your eyes may cause burning, stinging, redness and general irritation. As such, direct application to your eyes may not offer the best protection or treatment for eye infections.