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The prevalence range for against-the-rule astigmatism (from studies with differing age groups) is from 1 to 58%. For oblique astigmatism, the prevalence range is from 2 to 61%. [33] With-the-rule astigmatism is more prevalent in young adults, and over time, the prevalence shifts to be mostly against-the-rule astigmatism. [37]
In the United Kingdom, wearing glasses was characterized in the nineteenth century as "a sure sign of the weakling and the mollycoddle", according to Neville Cardus, writing in 1928. [76] "Tim" Killick was the first professional cricketer to play while wearing glasses "continuously", after his vision deteriorated in 1897. "With their aid he ...
Kiké Hernández was diagnosed with astigmatism in his right eye and given glasses. Since then, his hitting has markedly improved. New eyeglasses give Kiké Hernández a new outlook on hitting
Astigmatism can be often corrected by glasses with a lens that has different radii of curvature in different planes (a cylindrical lens), contact lenses, or refractive surgery. [5] Astigmatism is quite common. Studies have shown that about one in three people suffers from it. [6] [7] [8] The prevalence of astigmatism increases with age. [9]
In glasses with powers beyond ±4.00D, the vertex distance can affect the effective power of the glasses. [4] A shorter vertex distance can expand the field of view, but if the vertex distance is too small, the eyelashes will come into contact with the back of the lens, smudging the lens and causing annoyance for the wearer.
The first major-league player to wear spectacles was Will 'Whoop-La' White in 1878–86. [4] [5] Only pitchers dared wear glasses while playing until the early 1920s, when George 'Specs' Toporcer of the St. Louis Cardinals became the first outfielder to sport eyewear. Bespectacled pitchers are less rare as they have less need to field the ball.
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