Near-sightedness

Myopia, dem sanso know as near-sightedness den short-sightedness, be an eye condition wer light from distant objects dey focus in front of, instead of on, de retina. As a result, distant objects dey appear blurry, while close objects dey appear normal. Oda symptoms fi include headaches den eye strain. Severe myopia be associated plus an increased risk of macular degeneration, retinal detachment, cataracts, den glaucoma.

Myopia dey result from de length of de eyeball wey dey grow too long anaa less commonly de lens be too strong. E be a type of refractive error. Diagnosis be by de use of cycloplegics during eye examination.

Myopia be less common insyd people wey spend more time outsyd during kiddie time. Dis lower risk fi be secof greater exposure to sunlight. Myopia fi be corrected plus eyeglasses, contact lenses, anaa by refractive surgery. Eyeglasses are the simplest and safest method of correction. Contact lenses fi provide a relatively wider corrected field of vision, buh dem be associated plus an increased risk of infection. Refractive surgeries such as LASIK den PRK permanently change de shape of de cornea. Oda procedures dey include implantable collamer lens (ICL) placement insyd de anterior chamber in front of de natural eye lens. ICL no dey affect de cornea.

Myopia be de most common eye problem wey be estimated to affect 1.5 billion people (22% of de world population). Rates dey vary significantly insyd different areas of de world. Rates among adults be between 15% den 49%. Among kiddies, e dey affect 1% of rural Nepalese, 4% of South Africans, 12% of people insyd de US, den 37% insyd sam large Chinese cities. Insyd China de proportion of girlies be slightly higher dan boys. Na rates increase since de 1950s. Uncorrected myopia be one of de most common causes of vision impairment globally along plus cataracts, macular degeneration, den vitamin A deficiency.

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Category:Disorders of ocular muscles, binocular movement, accommodation den refraction
Category:Vision
Category:Disability
Category:Translated from MDWiki