In the past few years, vaping has become really popular as a substitute for smoking regular cigarettes. People think it's safer than smoking, but as more and more people start vaping, we're starting to see that it might not be as harmless as we thought. One thing that's getting a lot of attention is how vaping can affect our eyes. Let's take a closer look at how vaping and eye health are connected, and what it could mean for us. Before we talk about how vaping can affect our eyes, let's first understand what vaping is all about. Vaping is when you breathe in and out vapor produced by an electronic cigarette or similar device. These devices heat up a liquid called e-liquid or vape juice to make the vapor that people inhale. The e-liquid usually has nicotine, flavors, and other chemicals in it.