| Seidel sign | |
|---|---|
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| A visual description of the sites of different types of scotomas on the retina.Seidels sign is marked with orange | |
| Differential diagnosis | glaucoma |
Seidel's sign (also called Seidel's scotoma) is a sickle-shaped scotoma that is a superior or inferior extension of the blind spot. It occurs in some patients with glaucoma. [1]
Glaucoma is a group of eye diseases which result in damage to the optic nerve and cause vision loss. The most common type is open-angle glaucoma, in which the drainage angle for fluid within the eye remains open, with less common types including closed-angle 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.
Emil Seidel was a prominent German-American politician. Seidel was the mayor of Milwaukee from 1910 to 1912. The first Socialist mayor of a major city in the United States, Seidel became the Vice Presidential candidate for the Socialist Party of America in the 1912 presidential election.
A scotoma is an area of partial alteration in the field of vision consisting of a partially diminished or entirely degenerated visual acuity that is surrounded by a field of normal – or relatively well-preserved – vision.
The visual field is the "spatial array of visual sensations available to observation in introspectionist psychological experiments". Or simply, visual field can be defined as the entire area that can be seen when an eye is fixed straight at a point.
Erik Seidel is an American professional poker player from Las Vegas, Nevada, who has won eight World Series of Poker bracelets and a World Poker Tour title. He is married and has two daughters.
Frederick Seidel is an American poet.
Wolfgang Seidel was a racing driver from Germany. He participated in 12 Formula One World Championship Grands Prix, debuting on 2 August 1953. He scored no championship points.
The Amsler grid, used since 1945, is a grid of horizontal and vertical lines used to monitor a person's central visual field. The grid was developed by Marc Amsler, a Swiss ophthalmologist. It is a diagnostic tool that aids in the detection of visual disturbances caused by changes in the retina, particularly the macula, as well as the optic nerve and the visual pathway to the brain. Amsler grid usually help detecting defects in central 20 degrees of the visual field.
An aura is a perceptual disturbance experienced by some with epilepsy or migraine.
The CSU-associated Hanns Seidel Foundation is a German party-associated and taxpayer-money funded political research foundation. It was founded in November 1966 after most of the other party-associated foundations in Germany were already established. It is headquartered in Munich. The conference centre in the Banz Abbey is the foundation's main location. It is a member of the Centre for European Studies, the official foundation and think tank of the European People's Party. It is named after the CSU politician Hanns Seidel.
"Supersymmetry" is episode 5 of season 4 in the television show Angel. Written by Elizabeth Craft and Sarah Fain and directed by Bill L. Norton, it was originally broadcast on November 3, 2002 on the WB network.
eye is a subconscious adaptation by a person's brain to eliminate the symptoms of disorders of binocular vision such as strabismus, convergence insufficiency and aniseikonia. The brain can eliminate double vision by ignoring all or part of the image of one of the eyes. The area of a person's visual field that is suppressed is called the suppression scotoma. Suppression can lead to amblyopia.
Scintillating scotoma is a common visual aura that was first described by 19th-century physician Hubert Airy (1838–1903). It may precede a migraine headache, but can also occur acephalgically. It is often confused with retinal migraine, which originates in the eyeball or socket.
Carl Friedrich Richard Förster was a German ophthalmologist born in the town of Lissa.
Jannik Petersen Bjerrum was a Danish ophthalmologist who was a native of Skærbæk, a town in the southernmost part of Jutland. In 1864 Skærbæk became part of Germany due to consequences of the Second Schleswig War.
Retinal migraine is a retinal disease often accompanied by migraine headache and typically affects only one eye. It is caused by ischaemia or vascular spasm in or behind the affected eye.
Molly Seidel is an American long distance runner. In her first-ever marathon, Seidel placed second at the 2020 U.S. Marathon Olympic Trials, securing a spot on the US team in the 2020 Tokyo Olympics. She represented the United States at the Great Edinburgh Cross Country in 2012, 2013 & 2018.
Bjerrum's area is the central 25° of the visual field from the fixation point, popularized scientifically by the Danish ophthalmologist Jannik Petersen Bjerrum.
Ursula Männle is a German Social sciences academic and politician (CSU). She served between 1983 and 1994 as a member of the Bundestag. More recently, between 2000 and 2013, she was a member of the Bavarian Landtag, chairing an important parliamentary committee and, till 2009, chairing the women's working group in the Landtag.
During the 1941 Major League Baseball (MLB) season, New York Yankees center fielder Joe DiMaggio recorded at least one hit in 56 consecutive games, breaking the MLB record for the longest hitting streak. His run lasted from May 15 to July 16, during which he had a .408 batting average. DiMaggio's streak surpassed the single-season record of 44 consecutive games that had been held by Willie Keeler since 1897, and the longest streak spanning multiple seasons, also accomplished by Keeler. The record set by DiMaggio still exists and has been described as unbreakable.
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