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presbyopia    
n. 老花眼,远视眼

老花眼,远视眼

presbyopia
n 1: a reduced ability to focus on near objects caused by loss
of elasticity of the crystalline lens after age 45 [synonym:
{presbyopia}, {farsightedness}]


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英文字典中文字典相关资料:


  • Presbyopia - Symptoms and causes - Mayo Clinic
    Presbyopia is the gradual loss of your eyes' ability to focus on nearby objects This natural, age-related change in vision usually begins sometime after age 40
  • What Is Presbyopia? - American Academy of Ophthalmology
    Presbyopia is when your eyes gradually lose the ability to see things clearly up close It is a normal part of aging In fact, the term “presbyopia” comes from a Greek word which means “old eye ” You may start to notice presbyopia shortly after age 40
  • Presbyopia - Wikipedia
    Presbyopia is a physiological insufficiency of optical accommodation associated with the aging of the eye; it results in progressively worsening ability to focus clearly on close objects [4]
  • Presbyopia: Symptoms, Causes Treatment - Cleveland Clinic
    Presbyopia is the medical term for your eye losing the ability to change its focus This affects how well you can see close-up objects It occurs as your eye’s natural lens grows less flexible with aging Presbyopia generally starts to develop around age 40 and gets worse until your mid-60s
  • Presbyopia: Symptoms, Diagnosis, and Treatment - WebMD
    Presybyopia: What is presbyopia? The natural decline in vision that often comes with age Know its causes and solutions
  • Presbyopia: Causes, Symptoms, Diagnosis Correction
    Learn about presbyopia, its causes, symptoms and diagnosis, along with glasses, contact lenses and other options to correct age-related near vision changes
  • Presbyopia - Harvard Health
    What is presbyopia? As we age, the lens of the eye becomes increasingly inflexible, making it harder to focus clearly on near objects This is called presbyopia These changes happen to everyone as a natural part of aging In order for us to see images clearly, light rays enter the
  • Presbyopia: Why Reading Gets Harder After 40 and What to Do
    What presbyopia is, why the lens stiffens with age, how reading glasses and multifocal lenses help, and what surgical options reduce glasses dependence
  • Presbyopia - Diagnosis and treatment - Mayo Clinic
    Learn more about the diagnosis and treatment of Presbyopia Find tips to get ready for any appointments you need
  • Presbyopia - Johns Hopkins Medicine
    What is presbyopia? Presbyopia is a type of refractive error that causes close objects to gradually appear out of focus as the eye ages It is caused by loss of the elasticity of the lens inside the eye due to natural aging Presbyopia eventually affects almost everyone, beginning as early as age 35, and progressing over the next 20 to 30 years





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