Demographics of Aging

As populations age, more people will experience diseases of older age like vision loss. The 75+ age group constitutes 70% of visually impaired people. Therefore an increasing elderly population will mean more people requiring vision care. Biological aging can be measured by increased mortality rates with age, following a Gompertz pattern of exponential growth. The body's reserve capacity declines with aging as homeostasis becomes harder to maintain, though aging effects individuals differently in rate and onset across body systems.