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- W579998463 abstract "THE NIGHT SIGHT METER IS AN INSTRUMENT DESIGNED TO GIVE THREE TYPES OF SCORES ON PHASES OF NIGHT VISION WHICH ARE COMMONLY MENTIONED AS IMPORTANT TO MOTORISTS TRAVELING THE HIGHWAY AT NIGHT. VISUAL MEASUREMENTS AT NIGHTTIME WERE CONDUCTED WITH THIS METER AND MEASUREMENTS FOR DAYLIGHT VISION WERE MADE WITH THE REGULAR SIGHT SCREENER. A SET OF INSTRUMENTS WAS INSTALLED IN A BOOTH AT THE IOWA STATE FAIR AND PERSONS VISITING THE FAIR WERE INVITED TO SERVE AS SUBJECTS. THE DATA WERE ANALYZED, CODED AND PUT ON IBM CARDS. INTERCORRELATIONS WERE RUN BETWEEN AGE, MILES DRIVEN, VISION IN LOW LIGHT, GLARE VISION, GLARE RECOVERY TIME AND DAYLIGHT VISION AS MEASURED BY THE SIGHT SCREENER. RESULTS INDICATE THAT:(1) NIGHT VISION IS DIFFERENT FROM DAYLIGHT VISION AND SHOULD BE MEASURED SEPARATELY, (2) THE SCORES ON THE NIGHT SIGHT METER ARE RELATIVELY INDEPENDENT AND ALL SHOULD BE TAKEN TO GET A MEASURE OF ONES VISION FOR DRIVING, (3) AGE SHOWS GREATEST EFFECT ON GLARE RECOVERY OF THE VARIABLES CONSIDERED, (4) CONSIDERING THE DIRECTION OF SCORES, ONE WITH GOOD VISION SEES SLIGHTLY BETTER AT NIGHT, BUT THE TWO MEASUREMENTS OVERLAP ONLY SLIGHTLY, (5) TO SECURE AN ADEQUATE APPRAISAL OF A DRIVER'S VISION ONE SHOULD HAVE BOTH DAYLIGHT AND NIGHT VISION SCORES, AND (6) NO SEX DIFFERENCES OF SUBSTANTIAL MAGNITUDE ARE INDICATED." @default.
- W579998463 created "2016-06-24" @default.
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- W579998463 date "1958-01-01" @default.
- W579998463 modified "2023-09-28" @default.
- W579998463 title "RELATION BETWEEN SCOTOPIC VISION AS MEASURED BY THE NIGHT SIGHT METER, DAYLIGHT VISION AND AGE" @default.
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