The biggest star on Youtube, Mr. Beast, cured over 1,000 people by paying for their eye surgery.

Mr. Beast, real name Jimmy Donaldson, did a new video on his page for his 130 million subscribers and worked alongside a non-profit eye care organization called See.

Mr. Beast is known for his wild videos, from real-life squid games to being buried alive, but this video shows people’s reactions to the first time they have seen.

Donaldson didn’t just stop there; he also donated $100,000 to See. He bought a patient a Tesla, gave away $10,000 to a bunch of people, and even gave $50,000 to a patient’s college fund.

Don’t worry about the money, as Mr. Beast is Youtube’s highest earner. Great job!