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Vision and Age

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Encyclopedia of Color Science and Technology

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Synonyms

Age-related changes of human seeing abilities

Definition

Aging of the human eye and its influence on seeing abilities with regard to brightness, color, spatial resolution (visual acuity and legibility), visual field, and glare.

Senescent Changes in the Visual Organ

Visual information accounts for about 70% or 80% of sensory information in human beings. Like other sensory organs, human vision has senescent changes for most of the parts in the visual system, and these make quality of seeing degraded to older people.

Figure 1shows a simple sketch of human eye together with major structural changes with age that affect perception of vision. Light from the external world enters into the eye through the lens and reaches onto the retina that covers the back of the eyeball. Two age-related changes occur at the lens; one is loss of elasticity and the other one yellowing and clouding of the lens. The former one brings on less accommodative power of the lens and consequently results in...

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References

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Authors and Affiliations

  1. Human Informatics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan

    Ken Sagawa

Authors
  1. Ken Sagawa
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Correspondence to Ken Sagawa .

Editor information

Editors and Affiliations

  1. Color Science & Imaging Lab, North Carolina State Univ, Raleigh, NC, USA

    Renzo Shamey

Section Editor information

  1. van Bommel Lighting Consultant, Nuenen, The Netherlands

    Wout van Bommel

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Sagawa, K. (2020). Vision and Age. In: Shamey, R. (eds) Encyclopedia of Color Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27851-8_394-1

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  • DOI: https://doi.org/10.1007/978-3-642-27851-8_394-1

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  • Print ISBN: 978-3-642-27851-8

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