Eye pressure

eye pressure

Eye pressure is the force of the fluid inside your eyeball pushing against its walls. Doctors usually measure it in millimeters of mercury using a quick office test, and it can go up or down over time. That pressure comes from a balance between fluid produced inside the eye and fluid drained away through tiny channels. If fluid builds up or drainage is blocked, the pressure rises; if production slows or drainage speeds up, pressure falls. You often cannot feel small changes in this pressure, so regular eye checks are important to detect problems early. High eye pressure is a major risk factor for damage to the optic nerve, which can slowly reduce vision without pain or obvious signs. Managing pressure can protect sight through medicines, laser procedures, or surgery that improve fluid flow or reduce its production. Some lifestyle factors, medicines, and health conditions can affect eye pressure, so doctors consider the whole picture when deciding treatment. Keeping scheduled eye exams and following your care plan is the best way to preserve vision if eye pressure is a concern.