Intraocular pressure (IOP) refers to the fluid pressure inside the eye. It is a critical factor in maintaining the eye’s shape and ensuring proper function. IOP is regulated by the balance between the production and drainage of aqueous humor, the fluid that nourishes the eye and keeps it inflated. Normal IOP typically ranges from 10 to 21 mmHg (millimeters of mercury), but when it becomes too high or too low, it can lead to various eye problems, the most significant being glaucoma. Regular monitoring of IOP is essential for early detection of glaucoma and preventing optic nerve damage.
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