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Night vision

About: Night vision is a research topic. Over the lifetime, 6004 publications have been published within this topic receiving 67372 citations.


Papers
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Patent
30 May 2003
TL;DR: In this paper, a system for combining multi-spectral images of a scene includes a channel (18) for transmitting a scene image (10) in a first spectral band and a separate, second detector (22) senses the scene in a second spectral band.
Abstract: A system (S) for combining multi-spectral images of a scene includes a channel (18) for transmitting a scene image (10) in a first spectral band. A separate, second detector (22) senses the scene in a second spectral band. The second detector (22) has an image output that is representative of the scene. A display (28) displays an image (12) in the second spectral band. A beam mixer (30) combines the image output (10) in the first spectral band with the displayed image (12), and conveys the combined multi-spectral images to an output (32) for a user (U).

81 citations

Journal ArticleDOI
TL;DR: Men’s night-driving cessation was associated with contrast sensitivity and depression, whereas women’'s night- driving cessation wasassociated with low-contrast acuity in glare as well as age.
Abstract: PURPOSE: The purpose of this study was to evaluate gender differences in the relationship between night driving self-restriction and vision function in an older population. METHODS: Night driving self-restriction patterns (assessed by questionnaire) were examined cross-sectionally in relation to age, gender, health and cognitive status, depression, and vision function in a sample of 900 elders (mean age, 76 years) living in Marin County, California. RESULTS: Of the total sample, 91% of men and 77% of women were current drivers. The mean age of the drivers was 73.3 years (range, 58-96 years). Among current drivers, women had slightly better vision function than men on most measures (low-contrast acuity, contrast sensitivity, low-contrast acuity in glare, low-contrast, low-luminance acuity, and glare recovery) but were twice as likely as men to restrict their driving to daytime. Men showed significant associations with avoidance of night driving on four spatial vision measures (high- and low-contrast acuity, low-contrast, low-luminance acuity, and contrast sensitivity). For women, in addition to these measures, a significant association was seen for low-contrast acuity in glare. Neither men nor women showed significant associations between driving restriction and performance on the other vision measures examined (glare recovery time, attentional field integrity, or stereopsis). The vision measures most predictive of self-restriction were contrast sensitivity for men and low-contrast acuity in glare for women. CONCLUSIONS: Including both cessation and self-restriction, men over age 85 years are 6.6 times more likely than women to be driving at night. For both genders, vision plays a significant role in the self-restriction decision. A higher percentage of men than women continue to drive at night with poor vision. Men's night-driving cessation was associated with contrast sensitivity and depression, whereas women's night-driving cessation was associated with low-contrast acuity in glare as well as age.

80 citations

Journal ArticleDOI
TL;DR: The results show that mileage, age, and sex are also important factors influencing driving record, and that conviction experience is a much more stable driving record variable than accident experience.
Abstract: INFORMATION ON VISION TEST PERFORMANCE AND PERSONAL AND DRIVING HABITS WAS OBTAINED FOR 17,769 CALIFORNIA DRIVERS AND WAS COMPARED WITH THEIR DRIVING RECORDS, I.E., ACCIDENTS AND CONVICTIONS FOR TRAFFIC CITATIONS. OF THE VISION TESTS EVALUATED, DYNAMIC VISUAL ACUITY IS BY FAR THE ONE MOST CLOSELY RELATED TO DRIVING RECORD, FOLLOWED BY STATIC VISUAL ACUITY, VISUAL FIELD, AND NIGHT VISION. THE RESULTS SHOW THAT MILEAGE, AGE, AND SEX ARE ALSO IMPORTANT FACTORS INFLUENCING DRIVING RECORD, AND THAT CONVICTION EXPERIENCE IS A MUCH MORE STABLE DRIVING RECORD VARIABLE THAN ACCIDENT EXPERIENCE. /AUTHOR/

80 citations

Journal ArticleDOI
TL;DR: The mean iris volume decreased after pupil dilation in open-angle and angle closure eyes, and the degree of reduction was less in eyes with a smaller ACV than in normal groups, suggesting both irisVolume and ACV were important determinants of the anterior chamber angle.

80 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202311
202244
2021132
2020170
2019256
2018272