Refractive error characteristics of early and advanced presbyopic individuals
By: Kenneth W. Welsh, Paul G. Rasmussen, John A. Vaughan ; Civil Aeromedical Institute, Federal Aviation Administration, Oklahoma City, Oklahoma.
Contributors: Rasmussen, P. G., joint author.; Vaughan, John A. joint author.; United States. Office of Aviation Medicine.; Civil Aeromedical Institute.
Series: FAA-AM -- 77-14.; FAA-AM (United States. Office of Aviation Medicine) -- 77-14.
Publisher: Dept. of Transportation, Federal Aviation Administration, Office of Aviation Medicine; for sale by the National Technical Information Service
Published: 1977
Place of publication: Washington; Springfield, Va
Language: eng
Subjects: Eye -- Accommodation and refraction.; Vision -- Research.; Errors.
Notes: Cover title.

Prepared under Task no. AM-A-77-PHY-95.

Issued July 1977.

Bibliography: p. 8.