He projects beams of pure heat energy (with neato reddish orangish tint) from his eyes; they’d simply slag whatever’s in the path. Thin plastic would vaporize, not melt. And then he’d have to get new ones, which he’d struggle to afford on a reporter’s salary.

The increased financial stress would put more strain on his marriage with Lois. He’d start drinking and discover that it takes an appalling amount of alcohol to get him drunk. He’d bankrupt himself and Lois in the process.

She divorces him. He corners Batman and tries to appeal to his old friend for advice, cash, and some of that sweet, sweet hooch. Batman agrees to support Superman’s destructive habit “just this once”.

Superman attempts to save a school bus full of orphans and nuns and puppies whilst heavily intoxicated. He fails and incinerates the entire bus, killing all involved, plus a kitten that was passing by.

The Justice League of America is forced to take action and imprison Superman on the Watchtower. He accepts his fate of a life behind bars.

Alcohol withdrawal sets in and he experiences delirium tremens on an epic scale. He violently convulses, sending shockwaves throughout the Watchtower. Its propulsion systems break and it falls from orbit. Helpless to stop “the shakes” and the massive space station’s fall, the Watchtower and Superman burn through the Earth’s atmosphere, crashing into Hong Kong and completely annihilating all life in it.

China declares war on the United States and launches nuclear missiles. The US retaliates in kind. Crippled by the loss of their communication and monitoring equipment on the Watchtower, the JLA is ineffective at preventing nuclear Armageddon. Dismayed at the outcome, Superman begins flying eastward circles around the Earth in an effort to go back in time and prevent all of this from occurring.

93 years later, Superman dies of old age, still orbiting the Earth, because physics doesn’t work that way.

Conclusion: If Superman ever wears contacts WE WILL ALL DIE!