Examines the relative sizes of the nation's partially sighted, legally blind but not functionally blind, and functionally blind populations as a function of age. It also examines the frequency with which partially sighted people occur in the nation's population for various age ranges. In addition, under a set of stated assumptions applied to the 1969-70 Model Reporting Area data, it has been found that most people who are partially sighted and legally blind will never become functionally blind.
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References
1.
KahnH. A., & MoorheadH. B.Statistics on Blindness in the Model Reporting Area 1969-1970.Washington, D.C.: DHEW Publication No. [NIH] 73-427, 1973.
