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CONRAD BERENS, M.D.

Arch Ophthal. 1943;29(2):171-209.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Today the life expectancy at birth of a white child born in the United States is between sixty and sixty-five years. Negroes average about ten years less.¹ Fifty years ago the average expectation of life for white persons was forty-five years.¹ This change has come about through the control of communicable diseases, improvements in public sanitation, establishment of better nutrition and other advances that affect health.

Between 1930 and 1940 the number of persons in the United States over 65 years of age increased by nearly 2,500,000 in a total population of 130,000,000. These figures indicate that ophthalmologists will be concerned increasingly with the treatment of the eyes of the aged.

Although the life of man may be divided into the stages of evolution, maturity and involution, the aging process is really continuous from birth to death and shows great individual variation. Carrel² said :

We must know . . . [Full Text PDF of this Article]

Author Affiliations
NEW YORK

From the Department of Research and the Eno Laboratory, New York Eye and Ear Infirmary, and the Department of Ophthalmology, New York University College of Medicine.

Footnotes
Aided by a grant from The Ophthalmological Foundation, Inc.

Read before the Section on Ophthalmology at the Ninety-Third Annual Session of the American Medical Association, Atlantic City, N. J., June 10, 1942.

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