The ultimate goal of the hyped ulzzang eyes is making the eyes look larger, sparkling and richly colored. I personally think that ulzzang eyes gives off an innocent aura which is suiting the whole ulzzang look. Makeup can practically make the eyes look larger, thus making it "ulzzang" but the key in achieving this are circle lenses.
Circle lenses make's the iris look look larger and a relatively wide outer rim which gives the illusion of having big eyes. This ultimately makes the eyes ulzzang.
Hove you ever tried wearing circle lenses? What are your thoughts about it?