Hello to you to sargeboy,anyway to clean the lens don't use alchohol bec. if some alchohol was put in the mainboard your psx is in big truoble....
Another way is to bring it to a repair shop and have it checked....
I f the games still work theres no need to panic your psx is safe...If the games not work,try to place your psx vertically like ps2.....
Hopes this helps....
Have fun posting....