Table of Contents
How is primary open-angle glaucoma diagnosed?
Diagnosis is by ophthalmoscopy, gonioscopy, visual field examination, and measurement of central corneal thickness and IOP. Treatment includes topical drugs (eg, prostaglandin analogs, beta-blockers) and often requires laser or incisional surgery to increase aqueous drainage.
What tests are used to diagnose glaucoma?
What happens during a glaucoma test?
- Tonometry. In a tonometry test, you will sit in an exam chair next to a special microscope called a slit lamp.
- Pachymetry.
- Perimetry, also known as a visual field test, measures your peripheral (side) vision.
- Dilated eye test.
- Gonioscopy.
Is Primary Open-Angle Glaucoma serious?
Open-angle glaucoma is a particularly dangerous eye disease because those who have it don’t know anything is wrong until significant, irreparable vision loss occurs.
What can cause Primary Open Angle Glaucoma?
Some of the risk factors for primary open-angle glaucoma have been extensively described and studied, including elevated intraocular pressure, advancing age, family history, African ancestry, myopia, and perhaps presence of certain systemic diseases, such as diabetes and hypertension.
What medications should be avoided with open angle glaucoma?
Steroids are the most important open angle glaucoma medication to avoid. Steroid usages can cause permanent blockage of the eye’s drainage system.
What is open-angle glaucoma?
Open-angle glaucoma is the most common form of the disease. The drainage angle formed by the cornea and iris remains open, but the trabecular meshwork is partially blocked. This causes pressure in the eye to gradually increase. This pressure damages the optic nerve.
What can cause Primary open-angle glaucoma?
What medications should be avoided with open-angle glaucoma?
What does primary open angle glaucoma mean?
Simple (primary) open-angle glaucoma. Simple (primary) open-angle glaucoma (POAG) is a progressive, chronic condition characterised by: Adult onset. IOP at some point greater than 21 mm Hg (normal range: about 10-21 mm Hg). An open iridocorneal angle (between the iris and the cornea, where the aqueous flows out).
What’s the difference between open and closed-angle glaucoma?
One major type of glaucoma is open-angle glaucoma. The difference between open-angle and angle closure glaucoma is based on examination. The term angle (short for irido-corneal angle; see figure 4-8 below) refers to the drainage angle of the eye, which is between the cornea and the iris.
What causes open angle glaucoma?
Primary open-angle glaucoma is caused by an imbalance in the production and drainage of the aqueous humor. This is the fluid that fills the anterior chamber of the eye.
Which factor may cause primary glaucoma?
The exact cause of primary open-angle glaucoma is unknown. Certain genes have been identified that are associated with glaucoma, and more research is under way to study these genetic factors. Identification of any family history of glaucoma is therefore helpful.