Intraocular Pressure

Intraocular Pressure

Intraocular pressure refers to the amount of pressure created by the fluid inside the eye (aqueous humor) and the ocular tissues. Maintaining this pressure is crucial for the balance between the intraocular fluid and the tissue structure within the eye. Normal intraocular pressure values are vital for preserving eye health.

Formation of Intraocular Pressure

• Aqueous Humor: A clear fluid known as aqueous humor is the primary component of intraocular pressure.
• Ocular Structures: Tissues within the eye and the structures surrounding the optic nerve play a significant role in the formation of this pressure.
• Tear Drainage: Tear drainage contributes to the control of intraocular pressure by managing the drainage of excess fluid.

Normal Intraocular Pressure Values

• It is generally expected to be within the range of 10-21 mmHg.
• These values can vary from person to person and may differ based on factors such as age, gender, and ethnicity.
• These values affect the health of intraocular structures and the ability to maintain vision.

Significance of Intraocular Pressure

• Eye Health: Normal intraocular pressure preserves eye health and supports vision.
• Risk of Glaucoma: Elevated intraocular pressure may increase the risk of eye conditions such as glaucoma.
• Intraocular Balance: Maintaining a balanced intraocular pressure ensures stability and function within the eye's structures.

Methods of Measuring Intraocular Pressure

• Tonometry: A common method used to measure intraocular pressure.
• Intraocular Examination: An eye doctor assesses intraocular pressure during an eye examination.
• Examination of the Back of the Eye: The condition of the optic nerve and intraocular pressure can be evaluated through an examination of the back of the eye.