This is only a theory since I do not have a Deep Eyes Armour set. Instead of using Blue LEDs to light up the whole eye-lens, I am thinking about making a few turns of Blue Electroluminescent Wires around the inner edge of the rings. Then I use Aluminum foil to reflect the EL glow to the outside. On the other side of the foil (where you would have stuck a round piece of transparent glass/acetate *which is not shown on the picture below*) you stick a dark tint. Or you can just replace the whole foil and back cover with silver tint and a round glass, the ones you use on car windows (the tint, I mean)
Is this how the lens are constructed?