I tried making eyes with 1/2 hour and slow curing epoxy and still get bubbles. I just got some UV resin and did a test and it still seems cloudy. BUT, I may being doing something wrong. I even tried using a torch to pop the bubbles……and needless the say, that did not end well.
I order clear plastic doll eyes from aliexpress. I cut off the stem and sand them level then paint the back the color I want. I am sure you could also use some type of reflective decals the same way I use paint.