What happens inside an eye when you stare?

When you stare at an object, your eye's muscles adjust to maintain focus on that object, primarily through the action of the ciliary muscles which control the shape of the lens. The pupils may constrict to optimize light entry and enhance focus, while the retina processes the visual information. Prolonged staring can lead to reduced blinking, resulting in dryness and discomfort due to decreased tear production. Additionally, the brain may start to adapt by filtering out some visual information, leading to a phenomenon known as "visual fatigue."