Final answer:
The eyes' ability to maintain a proper Intraocular Pressure (IOP) is vital for maintaining the shape of the eye and proper vision. When fluid circulation is blocked, it can lead to an increase in pressure, resulting in glaucoma, which can damage the optic nerve. Regular testing of IOP is necessary, especially for individuals over 40, to prevent glaucoma and preserve eye health.
Step-by-step explanation:
The eyes' ability to maintain a proper Intraocular Pressure (IOP) allows for the maintenance of the eye's shape and proper functioning.
IOP is crucial because it helps to keep the eye's shape, which is necessary for clear vision. The normal range of IOP is 12.0 to 24.0 mm Hg, and if fluid circulation within the eye is blocked, it can result in a buildup of pressure, leading to glaucoma. This condition can cause an abnormal increase in pressure which may permanently damage the optic nerve, sometimes reaching as high as 85.0 mm Hg. Maintaining a normal IOP is important for the health of the eye and the prevention of damage to the optic nerve.
Glaucoma is a risk factor for people over 40 years of age, hence they should have their IOP tested regularly. Testing for IOP often involves exerting a force over an area (pressure) and noting the eye's response. A device measures the force necessary to indent the eye using a noncontact puff of air technique.