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Duane syndrome is a congenital rare type of strabismus most commonly characterized by the inability of the eye to move outward. The syndrome was first described by ophthalmologists Jakob Stilling (1887) and Siegmund Türk (1896), and subsequently named after Alexander Duane, who discussed the disorder in more detail in 1905. [2] Other names for ...
A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. Thus a prism of 1 Δ would produce 1 cm visible displacement at 100 cm, or 1 metre. This can be represented mathematically as: = where is the amount of prism correction in prism dioptres, and is the angle of deviation of the light.
Convergence insufficiency. Convergence Insufficiency. Other names. Convergence disorder. Specialty. Ophthalmology, optometry. Convergence insufficiency is a sensory and neuromuscular anomaly of the binocular vision system, characterized by a reduced ability of the eyes to turn towards each other, or sustain convergence .
Esotropia is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. [1] It is the opposite of exotropia and usually involves more severe axis deviation than esophoria. Esotropia is sometimes erroneously called ...
The 2021 FIA Formula One World Championship was a motor racing championship for Formula One cars which was the 72nd running of the Formula One World Championship.It is recognised by the Fédération Internationale de l'Automobile (FIA), the governing body of international motorsport, as the highest class of competition for open-wheel racing cars.
Third. Lewis Hamilton. Mercedes. Lap leaders. The 2021 Belgian Grand Prix (officially known as the Formula 1 Rolex Belgian Grand Prix 2021) was a Formula One motor race held on 29 August 2021 at the Circuit de Spa-Francorchamps. It was the twelfth round of the 2021 Formula One World Championship. The race was also the 77th overall running of ...
The Alfa Romeo Racing C41 is a Formula One car constructed by Alfa Romeo Racing to compete in the 2021 Formula 1 World Championship. The car was driven by Kimi Räikkönen and Antonio Giovinazzi, who returned for their third year with the team. [4] Robert Kubica drove for the team at the Dutch and Italian Grands Prix replacing Räikkönen who ...
Third. Sergio Pérez. Red Bull Racing - Honda. Lap leaders. The 2021 United States Grand Prix (officially known as the Formula 1 Aramco United States Grand Prix 2021) was a Formula One motor race, held on October 25, 2021, at the Circuit of the Americas in Austin, Texas, United States. The race was the 17th round of the 2021 Formula One World ...