cyclic glaucoma - significado y definición. Qué es cyclic glaucoma
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Qué (quién) es cyclic glaucoma - definición

EYE DISEASE THAT IS CHARACTERIZED BY AN UNSTABLE OR A SUSTAINED INCREASE IN THE INTRAOCULAR PRESSURE WHICH THE EYE CANNOT WITHSTAND WITHOUT DAMAGE TO ITS STRUCTURE OR IMPAIRMENT OF ITS FUNCTION
Open angle glaucoma; Acute glaucoma; Angle closure glaucoma; Angle recession glaucoma; Closed angle glaucoma; Chronic open angle glaucoma; Glacoma; Closed-angle glaucoma; Excimer Laser Trabeculostomy; Acute angle-closure glaucoma; Neovascular glaucoma; Glucoma; Neovascular Glaucoma; Toxic glaucoma; Toxic Glaucoma; Glycoma; Glaukomflecken; Acute angle closure glaucoma; Central corneal thickness; Primary open angle glaucoma; Hemorrhagic glaucoma; Acute angle glaucoma; Angle closure; Open-angle glaucoma; Angle-closure glaucoma; Anti-glaucoma; Glaucoma drug; Antiglaucoma; Anti-glaucoma agent; Glaukoma; Chronic angle closure glaucoma; Absolute glaucoma; Glaucomatous; Acute closed-angle glaucoma; Narrow angle glaucoma; Wide angle glaucoma; Chronic simple glaucoma; Acute congestive glaucoma; Glaucomflecken; Pupillary block glaucoma
  • Photo showing conjunctival vessels dilated at the corneal edge (ciliary flush, circumcorneal flush) and hazy cornea characteristic of acute angle closure glaucoma
  • Bjerrums area and types of scotomas on the visual field
  • Conventional surgery to treat glaucoma makes a new opening in the [[trabecular meshwork]], which helps fluid to leave the eye and lowers intraocular pressure.
  • Scientists track eye movements in glaucoma patients to check vision impairment while driving
  • Tubular vision
  • more than 250}}
{{refend}}
  • Optic nerve in advanced glaucoma disease
  • Human eye cross-sectional view
  • Arcuate scotoma

Cyclic peptide         
  • α-Amanitin]]
  • [[Bacitracin]]
  • [[Ciclosporin]]
PEPTIDE CHAINS WHICH CONTAIN A CIRCULAR SEQUENCE OF BONDS
Cyclic peptides; Peptides, cyclic; Cyclic polypeptides; Cyclic protein; Cyclic polypeptide; Cyclopeptides; Cyclopeptide; Peptide macrocycle
Cyclic peptides are polypeptide chains which contain a circular sequence of bonds. This can be through a connection between the amino and carboxyl ends of the peptide, for example in cyclosporin; a connection between the amino end and a side chain, for example in bacitracin; the carboxyl end and a side chain, for example in colistin; or two side chains or more complicated arrangements, for example in amanitin.
Cyclic order         
TERNARY RELATION THAT IS CYCLIC (IF [𝑥,𝑦,𝑧] THEN [𝑧,𝑥,𝑦]), ASYMMETRIC (IF [𝑥,𝑦,𝑧] THEN NOT [𝑧,𝑦,𝑥]), TRANSITIVE (IF [𝑤,𝑥,𝑦] AND [𝑤,𝑦,𝑧] THEN [𝑤,𝑥,𝑧]) AND CONNECTED (FOR DISTINCT 𝑥,𝑦,𝑧
Cyclic sequence; Circular order; Circular ordering; Total cyclic order; Cyclically ordered set; Cyclic ordering; Complete cyclic order; Linear cyclic order; L-cyclic order; Circularly ordered set
In mathematics, a cyclic order is a way to arrange a set of objects in a circle. Unlike most structures in order theory, a cyclic order is not modeled as a binary relation, such as "".
Normal tension glaucoma         
HUMAN DISEASE
Normal-tension glaucoma; Low tension glaucoma
Normal tension glaucoma (NTG) is an eye disease, a neuropathy of the optic nerve, that shows all the characteristics of primary open angle glaucoma except one: the elevated intraocular pressure (IOP) - the classic hallmark of glaucoma - is missing. Normal tension glaucoma is in many cases closely associated with general issues of blood circulation and of organ perfusion like arterial hypotension, metabolic syndrome, and Flammer syndrome.

Wikipedia

Glaucoma

Glaucoma is a group of eye diseases that result in damage to the optic nerve (or retina) and cause vision loss. The most common type is open-angle (wide angle, chronic simple) glaucoma, in which the drainage angle for fluid within the eye remains open, with less common types including closed-angle (narrow angle, acute congestive) glaucoma and normal-tension glaucoma. Open-angle glaucoma develops slowly over time and there is no pain. Peripheral vision may begin to decrease, followed by central vision, resulting in blindness if not treated. Closed-angle glaucoma can present gradually or suddenly. The sudden presentation may involve severe eye pain, blurred vision, mid-dilated pupil, redness of the eye, and nausea. Vision loss from glaucoma, once it has occurred, is permanent. Eyes affected by glaucoma are referred to as being glaucomatous.

Risk factors for glaucoma include increasing age, high pressure in the eye, a family history of glaucoma, and use of steroid medication. For eye pressures, a value of 21 mmHg or 2.8 kPa above atmospheric pressure (760 mmHg) is often used, with higher pressures leading to a greater risk. However, some may have high eye pressure for years and never develop damage. Conversely, optic nerve damage may occur with normal pressure, known as normal-tension glaucoma. The mechanism of open-angle glaucoma is believed to be the slow exit of aqueous humor through the trabecular meshwork, while in closed-angle glaucoma the iris blocks the trabecular meshwork. Diagnosis is achieved by performing a dilated eye examination. Often, the optic nerve shows an abnormal amount of cupping.

If treated early, it is possible to slow or stop the progression of disease with medication, laser treatment, or surgery. The goal of these treatments is to decrease eye pressure. A number of different classes of glaucoma medication are available. Laser treatments may be effective in both open-angle and closed-angle glaucoma. A number of types of glaucoma surgeries may be used in people who do not respond sufficiently to other measures. Treatment of closed-angle glaucoma is a medical emergency.

About 70 million people have glaucoma globally, with about two million patients in the United States. It is the leading cause of blindness in African Americans. It occurs more commonly among older people, and closed-angle glaucoma is more common in women. Glaucoma has been called the "silent thief of sight", because the loss of vision usually occurs slowly over a long period of time. Worldwide, glaucoma is the second-leading cause of blindness after cataracts. Cataracts caused 51% of blindness in 2010, while glaucoma caused 8%. The word "glaucoma" is from the Ancient Greek glaukos, which means "shimmering." In English, the word was used as early as 1587 but did not become commonly used until after 1850, when the development of the ophthalmoscope allowed doctors to see the optic nerve damage.