glaucoma
Sign in to saveGlaucoma is a group of eye diseases that can lead to damage of the optic nerve, which transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of sight" because the loss of vision usually occurs slowly over a long period of time. A major risk factor for glaucoma is increased pressure within the eye, known as intraocular pressure (IOP). It is associated with old age, a family history of glaucoma, and certain medical conditions or the use of some medications. The word glaucoma comes from the Ancient Greek word
AI overview
Glaucoma is a group of eye diseases that damage the optic nerve (which sends visual information from your eye to your brain) and can cause vision loss if left untreated. It's often called the "silent thief of sight" because vision loss typically happens slowly over time, and increased eye pressure is a major risk factor, with age, family history, and certain medical conditions increasing your chances of developing it.
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Key facts
- Medical condition (new).name
- Glaucoma
- Medical condition (new).image
- Acute angle closure glaucoma.JPG
- Medical condition (new).caption
- Acute angle-closure glaucoma of a person's right eye (shown at left). Note the mid-sized pupil, which is non-reactive to light, and redness of the white of the eye.
- Medical condition (new).field
- Ophthalmology, optometry
- Medical condition (new).onset
- Gradual, or sudden
- Medical condition (new).risks
- Increased pressure in the eye, family history, high blood pressure
- Medical condition (new).diagnosis
- Dilated eye examination
- Medical condition (new).differential
- Uveitis, trauma, keratitis, conjunctivitis
- Medical condition (new).treatment
- Medication, laser, surgery
- Medical condition (new).frequency
- 6–67 million
via Wikipedia infobox
Article
39 sectionsContents
- Epidemiology
- Signs and symptoms
- Risk factors
- Ocular hypertension
- Family history and genetics
- Ethnicity
- Other
- Pathophysiology
- Diagnosis
- Types
- Primary glaucoma and its variants
- Developmental glaucoma
- Secondary glaucoma
- Absolute glaucoma
- Visual field defects in glaucoma
- Screening
- Treatment
- Medication
- Adherence
- Laser
- Surgery
- Canaloplasty
- Trabeculectomy
- Glaucoma drainage implants
- Laser-assisted nonpenetrating deep sclerectomy
- Clear lens extraction
- Treatment approaches for primary glaucoma
- Neovascular glaucoma
- Other
- Prognosis
- History
- Etymology
- Research
- Eye drops vs. other treatments
- Comparison of effects of brimonidine and timolol
- Social disparities in glaucoma care and research
- See also
- References
- External links
Glaucoma is a group of eye diseases that can lead to damage of the optic nerve, which transmits visual information from the eye to the brain. Glaucoma may cause vision loss if left untreated. It has been called the "silent thief of sight" because the loss of vision usually occurs slowly over a long period of time. A major risk factor for glaucoma is increased pressure within the eye, known as intraocular pressure (IOP). It is associated with old age, a family history of glaucoma, and certain medical conditions or the use of some medications. The word glaucoma comes from the Ancient Greek word (), meaning 'gleaming, blue-green, gray'.
Of the different types of glaucoma, the most common are called open-angle glaucoma and closed-angle glaucoma. Inside the eye, a liquid called aqueous humor, which is produced by the ciliary body, helps to maintain shape and provides nutrients. The aqueous humor normally drains through the trabecular meshwork. In open-angle glaucoma, the drainage is impeded, causing the build up of aqueous to accumulate in the anterior chamber causing the pressure inside the eye to increase. This elevated pressure can reduce vascular perfusion in the vitreous chamber and can damage the optic nerve and peripheral glial tissues. In closed-angle glaucoma, the drainage of the eye becomes suddenly blocked, leading to a rapid increase in intraocular pressure. This may lead to intense eye pain, blurred vision, and nausea. Closed-angle glaucoma is an emergency requiring immediate attention.