Tag: laser

Why are Stars Star-Shaped?

When you ask someone to draw a star, they’ll probably draw something like this – or this or this. Even ignoring the rainbows, this doesn’t...

What is surface laser eye surgery?

[Music] Surface laser eye surgery usually involves two types of laser treatment. The first type is called LASEK, L-A-S-E-K. During that procedure the epithelium, which...