Why Do Some People Have ‘Glasses’ That Make Things Bigger or Smaller?

Some people have glasses that make things look bigger or smaller because of special lenses inside them.

Imagine you're looking at a picture in a book. If you hold the book far away from your face, the letters seem small. But if you bring it closer, the letters get bigger. That's how some glasses work, they help you see things as if they’re right next to your eyes, even when they're not.

Think of a lens like a window in a toy car. If the window is curved outward, it makes everything look bigger, just like when you peer through a magnifying glass. That’s what happens with glasses for people who need help seeing things that are close, their lenses act like extra windows to make tiny letters or objects seem larger.

On the other hand, if the lens is curved inward, like the inside of a spoon, it makes things look smaller, kind of like when you squint at something far away. These glasses help people who need help seeing things that are far away, like a whiteboard in school or a bird flying high up.

So whether it's bigger or smaller, glasses use special lenses to make things easier to see!