ISSN: 2578-465X
Authors: Verma S*
The human aging process begins as we are born and continues until the day we die. However, aging is described differently by different groups of people and hence people age differently. On one hand graying of hair is considered as universal sign of aging and retirement is seen as another sign of aging. The retirement age is also different in different parts of the world
Keywords: Presbyopia; Contact Lenses; Spectacle
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