Examples of using "оптическая" in a sentence and their english translations:
This is an optical illusion.
It's an optical illusion.
- Here's an optical illusion: you think you are looking at a cube, but in fact you are looking at the screen.
- Here's an optical illusion: you think you are looking at a cube, while in fact you are looking at the screen.
- Here's an optical illusion: you think you are looking at a cube, while in fact you are looking at your monitor.