Any overly large or academic wording used is purley the fault of the authorStop me if this has been discussed already. HA! You can't! HA!
When I see 2 eyed leela, I think bimbo. 2 makes her look stupid. 1 makes her look more of a leader.
Explanations: Our favoritism of more even or symetrical faces? That the one large eye is just just a more perfect face instinctivly?
OR
Comparitivly, Leela's face was designed for one eye, both by our experiences watching her shaping our expectations and the creators design intentions. That our natural tendacy to see a certein face as holding a simple mind (ie, her face looks thinner with 2) is expanded. Meaning simply I'm making this whole thing up from nothing.
I've lost the concept

of what I was meaning to say, so I'll stop. Jump in anyone