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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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  • Presbyopia - Symptoms and causes - Mayo Clinic
    Overview 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
  • 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
  • Presbicia - Síntomas y causas - Mayo Clinic
    Síntomas La presbicia se manifiesta de forma gradual Es posible que después de los 40 años notes los siguientes signos y síntomas por primera vez: Una tendencia a sostener el material de lectura más lejos para ver las letras con mayor claridad Visión borrosa a una distancia de lectura normal Cansancio ocular o dolores de cabeza después de leer o realizar trabajos minuciosos Es posible
  • 老视 - 症状与病因 - 妙佑医疗国际
    Mian SI Visual impairment in adults: Refractive disorders and presbyopia https: www uptodate com contents search Accessed Sept 10, 2020 AskMayoExpert Contact lenses Rochester, Minn : Mayo Foundation for Medical Education and Research; 2020 Presbyopia treatment
  • Presbicia - Diagnóstico y tratamiento - Mayo Clinic
    Diagnóstico La presbicia se diagnostica mediante un examen ocular básico, que incluye una evaluación de la refracción y un examen de salud ocular La evaluación de la refracción determina si tienes miopía o hipermetropía, astigmatismo o presbicia Es posible que el médico use varios instrumentos y te pida que mires a través de varios lentes para evaluar tu visión de cerca y de lejos
  • قصو البصر الشيخوخي - الأعراض والأسباب - Mayo Clinic (مايو كلينك)
    نظرة عامة قصو البصر الشيخوخي هو فقدان تدريجي لقدرة العين على التركيز على الأجسام القريبة إنها حالة طبيعية وعادة ما تشكل الجزء المزعج من التقدم في العمر عادةً ما يُلاحظ قصو البصر الشيخوخي منذ بداية الأربعينيات إلى
  • 老视 - 诊断与治疗 - 妙佑医疗国际
    如果您具有眼科疾病风险因素或需要戴眼镜或隐形眼镜，您可能需要增加检查频率。 治疗 治疗目的是弥补眼睛无法聚焦在附近物体的问题。治疗方案包括戴矫正眼镜（眼镜镜片）或隐形眼镜，进行屈光手术或为老视植入晶体。 眼镜 要矫正因老视引起的视力问题，佩戴眼镜是一种简单、安全的方法
  • Mayo Clinic Q A: Presbyopia normal in aging, but regular eye exams . . .
    Many people become aware of presbyopia when vision seems blurry at a normal reading distance, and they have to hold reading material farther away to see it clearly Presbyopia is a normal part of aging for almost everyone, and the process will continue whether you get glasses or not
  • Presbyopia - Mayo Clinic
    With normal vision, an image is sharply focused onto the retina (top image) If you have presbyopia, your inflexible lens doesn't adjust to focus light properly, so the point of focus falls behind the retina (bottom image) This makes close-up objects appear blurry
  • Do your vision changes signal an eye disorder? - Mayo Clinic Connect
    Presbyopia — With this common age-related problem, the lens within the eye gradually loses its elasticity and its ability to change shape As a result, it becomes more difficult to focus on close up objects without the help of corrective lenses, such as reading glasses





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