Accession Number : AD0684362

Title :   ANALYSIS OF VISUAL AND PUPILLARY FUNCTIONING.

Descriptive Note : Rept. no. 3 (Final), 1 Jul 67-31 Dec 68,

Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s) : Makley,Torrence A. , Jr. ; Biersdorf,William R.

Report Date : JAN 1969

Pagination or Media Count : 15

Abstract : To determine the site (or sites) of adaptation in the human eye, the components of the human electroretinogram were separately analysed by the incremental threshold technique at various levels of light adaptation and in dark adaptation. The human a-wave was found to adapt over at least three log units and was still not saturated at the highest adaptation tested. To develop an inexpensive method of recording human pupillary dilation and constriction, the c-wave of the electroretinogram was investigated. An inexpensive infrared electronic pupillograph was developed for the measurement of pupillary responses. (Author)

Descriptors :   (*EYE, ADAPTATION(PHYSIOLOGY)), (*RESPONSE(BIOLOGY), EYE), ELECTRORETINOGRAPHY, SITE SELECTION, THRESHOLDS(PHYSIOLOGY), RETINA, RELAXATION(PHYSIOLOGY), TEST EQUIPMENT, VISION

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE