Here's the breakdown:
* His Power: Cyclops' mutant ability is to fire powerful beams of energy from his eyes. These beams are incredibly destructive and can be hard to control.
* The Problem: If Cyclops' eyes weren't covered, his optic blasts would constantly be firing, causing massive damage and danger.
* The Solution: The red glasses act as a ruby quartz visor that absorbs the energy from his optic blasts. They're made of a special material that can withstand the intense heat and force of his beams.
* Control: The glasses allow Cyclops to control his power by opening and closing them. When they are closed, his optic blasts are contained. When he opens them, he can unleash his energy with pinpoint accuracy.
While the design and material of his glasses may have varied over the years, the core purpose remains the same: to provide safe and controlled usage of his incredible power.