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The prevalence of myopia has been reported as high as 70–90% in some Asian countries, 30–40% in Europe and the United States, and 10–20% in Africa. [130] Myopia is about twice as common in Jewish people than in people of non-Jewish ethnicity. [132] Myopia is less common in African people and associated diaspora. [129]
Myopia in students is a serious concern, ... and it is estimated that by 2050 there will be 4.76 billion people with myopia and 0.94 billion with high myopia."
For people with moderate to high myopia or thin corneas which cannot be treated with LASIK or PRK, the phakic intraocular lens is an alternative. [4] [5] As of 2018, roughly 9.5 million Americans have had LASIK [1] [6] and, globally, between 1991 and 2016, more than 40 million procedures were performed.
A 2016 systematic review found that it was unclear whether there were any differences in efficacy, accuracy, and adverse effects when comparing PRK and LASEK procedures among people with low to moderate myopia. [18] The review stated that no trials have been conducted comparing the two procedures on people with high myopia. [18]
Symptoms may include disorientation, breathing problems, and vision changes such as myopia. Prolonged exposure to above-normal oxygen partial pressures, or shorter exposures to very high partial pressures, can cause oxidative damage to cell membranes, collapse of the alveoli in the lungs, retinal detachment, and seizures. Oxygen toxicity is ...
Myopia or Nearsightedness: When the refractive power is too strong for the length of the eyeball, this is called myopia or nearsightedness. People with myopia typically have blurry vision when viewing distant objects because the eye is refracting more than necessary.
In many cases, myopia will stabilize once the growth process has been completed, but in more severe chronic cases, loss of vision can occur. Degenerative myopia, also known as malignant, pathological, or progressive myopia, is characterized by posterior sclera elongation and thinning (at least 25.5 mm to 26.5 mm) and high refractive errors of ...
The high rate of choroidal hemorrhage associated with warfarin is likely due to the drug's long-term use. Rivaroxaban had a high number of reports of retinal and vitreous hemorrhage despite the fact that it was approved by the Food and Drug Administration a year later than dabigatran, suggesting a higher risk in patients taking rivaroxaban than ...