Intraocular pressure (IOP)

Definition

Intraocular pressure (IOP) is the fluid pressure inside the eye. It is an important measure in assessing and managing conditions like glaucoma.

5 Must Know Facts For Your Next Test

1. Normal IOP ranges from 10 to 21 mmHg.
2. Elevated IOP can lead to optic nerve damage and vision loss if untreated.
3. Medications such as prostaglandin analogs are commonly used to lower IOP.
4. IOP can be measured using tonometry, with methods including applanation and non-contact tonometry.
5. Systemic medications like corticosteroids can increase IOP.

Review Questions

• What is the normal range for intraocular pressure?
• Which type of medication is commonly prescribed to lower elevated intraocular pressure?
• Name a method used to measure intraocular pressure.

Related terms

Glaucoma:

A condition characterized by increased intraocular pressure that can lead to optic nerve damage.

Tonometry:

A diagnostic test that measures the intraocular pressure of the eye.

Prostaglandin Analogs:

A class of drugs often used to reduce intraocular pressure in patients with glaucoma or ocular hypertension.