So everyone here knows the annoyance a speck of sediment can cause when it finds its way underneath the eyelid? I mean way underneath, almost behind the eyeball. Normally, you can sweep stuff out from under eyelid A by pulling the lid over the eyelashes of eyelid B, but sometimes the foreign body
is too far stuck to employ this technique.
Take an ordinary contact lens, and put a few capillaries through it that originate from the center and radiate outwards to the edge of the lens. Now put a nozzle at the radius of the lens, attach it to a tube, and attach the tube to a pump bottle of Visine, saline solution, or what have you. When properly inserted, it should look like you have a rubber tubule growing out of your eye. The lens should be fairly small, because you don't want to cover up too much of the eye. The lens should also be very thin.
To remove the crap underneath your eyelid, squeeze the pump (making sure to evacuate all air from the tube beforehand). The fluid flows through the tube, through the lens, and gently underneath the eyelid, carrying the particle to a different location. Hopefully, after one flush, the particle can be swept out using the method described above. If not, flush again.
The eyelid may bulge a small amount during the pumping.