Scenario: College reunion, twenty years since graduation.

You meet your former roommate you haven't seen in years. Although she's wearing a little makeup, there's a certain clear elegance about her face. She appears energetic and well-rested. When she smiles, the gleam in her eyes is inviting and sincere.

You marvel to yourself about how well time has treated her, about how her personality seems as youthful as it was on the day you both graduated, about how (despite a few wrinkles when she laughs) she looks as attractive now as she did back then.

Then another former roommate taps you on the shoulder.

You turn around to find her eyebrows arched upward than you can recall, her lid creases pulled artificially high, and her forced blink distracting. One lid seems slightly droopy. Despite her heavy eye shadow, a scar shows across her upper eyelid. Her lower lids look stiff and hollow, and the outer corners of her lids are rounded. The whites of her eyes are showing beneath the color of her irises in a way they never did before.

Her pancake cosmetics seem more like camouflage than adornment. While there's not a wrinkle to be found around her staring eyes, her face seems lifeless and her smile harsh.

Both ladies have undergone cosmetic facial surgery. Both have had work done on their eyelids. So, why such a difference?