Just adding this to the mix, as why in my mind vision and perception are inseperable and why I am thinking that the sense of sight can be true most of the time (99.9%) but not all of the time:
How vision works:
QuoteWhat is vision?
Vision is the process where your eyes and brain work together and use light reflecting off things around you to create the ability to see. It’s one of the five main senses and a key contributor to how most people understand the world around them.
How does vision work?
Vision starts when your eyes detect light and turn it into coded nerve signals, which then travel through your optic nerves to your brain. Your brain receives and decodes the signals, and turns them into the pictures you see.
...and this:
QuoteOptical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away. Scientifically, researchers use optical illusions to gain insight into how humans see and process visual information, although the mechanisms behind many of them are still a mystery.