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The Bates method is an ineffective and potentially dangerous alternative therapy aimed at improving eyesight.Eye-care physician William Horatio Bates (1860–1931) held the erroneous belief that the extraocular muscles caused changes in focus and that "mental strain" caused abnormal action of these muscles; hence he believed that relieving such "strain" would cure defective vision.
Vitaly Borker (born 1975 or 1976 in the former Soviet Union), known by pseudonyms Tony Russo, Stanley Bolds and Becky S, is an American felon who has twice served federal prison sentences for charges arising from how he ran his online eyeglass retail and repair sites, DecorMyEyes and OpticsFast. [4]
The abbreviation PH is followed by the visual acuity as measured with a pinhole occluder, which temporarily corrects for refractive errors such as myopia or astigmatism. PHNI means no improvement of visual acuity using a pinhole occluder. So, distant visual acuity of 6/10 and 6/8 with pinhole in the right eye will be: DscOD 6/10 PH 6/8.
See pointed to a review published in Cochrane Reviews in August 2023. Researchers looked at 17 randomized controlled trials on blue-light filtering glasses to see whether or not there was evidence ...
Spherical aberration exacerbates myopia in low light (night myopia). In brighter conditions, the pupil constricts, blocking the more peripheral rays and minimizing the effect of spherical aberration. As the pupil enlarges, more peripheral rays enter the eye and the focus shifts anteriorly, making the patient slightly more myopic in low-light ...
Myopia rate in Europe by birth decade (1910 to 1970) [145] In first-year undergraduate students in the United Kingdom 50% of British whites and 53% of British Asians were myopic. [146] A recent review found 27% of Western Europeans aged 40 or older have at least −1.00 diopters of myopia and 5% have at least −5.00 diopters. [147]
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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.