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presbyopic    
a. 老花眼的,远视眼的
n. 远视眼的人

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  • Presbyopia - Wikipedia
    Presbyopia is a typical part of the aging process [4] It occurs due to age-related changes in the lens (decreased elasticity and increased hardness) and ciliary muscle (decreased strength and ability to move the lens), causing the eye to focus light right behind rather than on the retina when looking at close objects [4]
  • Presbyopia - Symptoms and causes - Mayo Clinic
    Presbyopia is the gradual loss of your eyes' ability to focus on nearby objects It's a natural, often annoying part of aging Presbyopia usually becomes noticeable in your early to mid-40s and continues to worsen until around age 65
  • What Is Presbyopia? - American Academy of Ophthalmology
    There is no way to stop or reverse the normal aging process that causes presbyopia However, presbyopia can be corrected with eyeglasses, contact lenses, medication, or surgery If you do not correct presbyopia, you may be bothered by headaches and eye strain
  • Presbyopia: Symptoms, Treatment, Definition - All About Vision
    Presbyopia is the normal loss of near focusing ability that occurs with age It occurs as the eye’s natural crystalline lens gradually becomes stiffer and less flexible over time This affects your near vision, making it difficult to see close objects clearly and in detail
  • Presbyopia - Diagnosis and treatment - Mayo Clinic
    Presbyopia is diagnosed by a basic eye exam, which includes a refraction assessment and an eye health exam A refraction assessment determines if you have nearsightedness or farsightedness, astigmatism, or presbyopia Your doctor may use various instruments and ask you to look through several lenses to test your distance and close-up vision
  • Presbyopia - National Eye Institute
    Presbyopia is a normal part of aging that makes it harder for older adults to see things up close Read about what causes presbyopia and how to manage it
  • Presbyopia - EyeWiki
    Presbyopia is the irreversible loss of the accommodative ability of the eye that occurs due to aging Accommodation refers to the ability of the eye to increase its refractive power of the crystalline lens in order to focus near objects on the retina [1]
  • Presbyopia-Correcting IOLs - American Academy of Ophthalmology
    People who want to be less dependent on eyeglasses might want to consider other lenses known as presbyopia-correcting IOLs Three types— multifocal, accommodative, and extended depth-of-focus IOLs—offer different focusing powers within the same lens
  • Presbyopia - Johns Hopkins Medicine
    Presbyopia is a type of refractive error that causes close objects to gradually appear out of focus as the eye ages
  • Presbyopia - AOA
    Presbyopia is a vision condition in which the shape of the crystalline lens of your eye changes These changes make it difficult to focus on close objects Presbyopia may seem to occur suddenly, but sight reduction occurs over several years





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