Effects of luminance contrast and character size on reading speed

Ohnishi, Madoka; Otsukuni, Terumi; Takahashi, Aoi; Sugiyama, Michiko; Hirakimoto, Mako; Ogawa, Satoshi; Suzuki, Astuo; Oshima, Yuta; Sheu, Ching-Fan; Oda, Kazuhiro

doi:10.1016/j.visres.2019.09.010

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…To a certain extent, the brightness of the screen influences the efficiency of recognizing information on the interface. When the screen brightness is reduced, the size of the characters needs to be increased to ensure reading efficiency [11] . When the screen is very bright, the number of blinks is fewer, which increases visual fatigue and requires a higher vigilance performance [12] .…”

Section: Introductionmentioning

confidence: 99%

Recognition efficiency of atypical cardiovascular readings on ECG devices through fogged goggles

Ren

Wang

et al. 2022

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In their continuing battle against the COVID-19 pandemic, medical workers in hospitals worldwide need to wear safety glasses and goggles to protect their eyes from the possible transmission of the virus. However, they work for long hours and need to wear a mask and other personal protective equipment, which causes their protective eye wear to fog up. This fogging up of eye wear, in turn, has a substantial impact in the speed and accuracy of reading information on the interface of electrocardiogram (ECG) machines. To gain a better understanding of the extent of the impact, this study experimentally simulates the fogging of protective goggles when viewing the interface with three variables: the degree of fogging of the goggles, brightness of the screen, and color of the font of the cardiovascular readings. This experimental study on the target recognition of digital font is carried out by simulating the interface of an ECG machine and readability of the ECG machine with fogged eye wear. The experimental results indicate that the fogging of the lenses has a significant impact on the recognition speed and the degree of fogging has a significant correlation with the font color and brightness of the screen. With a reduction in screen brightness, its influence on recognition speed shows a v-shaped trend, and the response time is the shortest when the screen brightness is 150 cd/m2. When eyewear is fogged, yellow and green font colors allow a quicker response with a higher accuracy. On the whole, the subjects show a better performance with the use of green font, but there are inconsistencies. In terms of the interaction among the three variables, the same results are also found and the same conclusion can be made accordingly. This research study can act as a reference for the interface design of medical equipment in events where medical staff wear protective eyewear for a long period of time.

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Section: Introductionmentioning

confidence: 99%

Recognition efficiency of atypical cardiovascular readings on ECG devices through fogged goggles

Ren

Wang

et al. 2022

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Applying APCA and Huetone for Color Accessibility of User Interfaces

Улитин¹

2023

Communications in Computer and Information Science

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The comparative benefits of text and page modification on the reading rates between sighted and moderate to severe visually impaired eyes

Abraham,

Sakyi-Badu,

Boadi-Kusi

et al. 2024

British Journal of Visual Impairment

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Reading with a magnifier is relatively slow for persons with moderate to severe visual impairment (MSVI). This study sought to investigate the effect of the page and text modifications such as page length reduction and introduction of guidelines in between sentences known to significantly improve the reading rate of persons with normal vision on the reading rate of persons with MSVI who use an optical aid for reading. A quasi-experimental study design was used to determine text and page modifications on the reading rate of sighted persons and moderate to severe visually impaired eyes. Modifications made to the reading materials included reducing the length of sentences on the pages, introducing guidelines in between the sentences, and a combination of both reducing the page length and introducing guidelines between the sentences. The reading rate of participants was calculated based on the time taken to complete the various reading tasks. The tasks were grouped into spot and fluent reading tasks. The data were analyzed using descriptive statistics, independent samples t-tests, and repeated measures analysis of variance (ANOVA). There were 19 visually impaired participants representing 34% of the total population recruited for the study. For spot reading, MSVI group achieved a 10-point significant improvement in their reading rate when alternating-colored guidelines were combined with reduced page length. The modifications did not significantly improve the fluent reading rate of the MSVI group. For both spot and fluent reading, introducing guidelines and reducing sentence length potentially provide a way to improve the reading rate of the visually impaired people who use an optical aid for reading. The practical implications of these results should be investigated in people with MSVI who use different optical aids for reading.

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Effects of luminance contrast and character size on reading speed

Cited by 3 publications

References 19 publications

Recognition efficiency of atypical cardiovascular readings on ECG devices through fogged goggles

Recognition efficiency of atypical cardiovascular readings on ECG devices through fogged goggles

Applying APCA and Huetone for Color Accessibility of User Interfaces

The comparative benefits of text and page modification on the reading rates between sighted and moderate to severe visually impaired eyes

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