scholarly journals Mobile Colored Overlays for People with Visual Stress

Author(s):  
Young Gun Jang
Revista CEFAC ◽  
2019 ◽  
Vol 21 (5) ◽  
Author(s):  
Ana Carla Oliveira Garcia ◽  
Douglas de Araújo Vilhena ◽  
Márcia Reis Guimarães ◽  
Ângela Maria Vieira Pinheiro ◽  
Teresa Maria Momensohn-Santos

ABSTRACT Purpose: to verify whether students screened with altered auditory temporal processing are more likely to present altered visual processing. Methods: the sample consisted of 68 children, aged from 9 to 12 years, 53% males, from the 5th and 6th grades of a public school. All children with alterations in the audiological or ophthalmological evaluation were excluded. The Duration Pattern Test (screening for auditory temporal skill), the Reading Perceptual Scale (visual stress symptom questionnaire and colored overlays selection) and the Rate of Reading Test (number of words correctly read per minute) were used. Appropriate statistical tests were applied adopting the significance level lower than 0.05. Results: participants screened with abnormal auditory processing had higher visual stress symptoms and lower reading rate, with a significant and moderate effect (p< 0.05; d< 0.71), when compared to their peers with normal auditory processing. Among the children with altered Duration Pattern Test, 58% improved the reading rate with the use of colored overlays, whereas 29% did so in the control group (Odds Ratio = 3.4, p = 0.017). Conclusion: children screened with altered auditory temporal processing presented a three times higher possibility of association with visual processing alterations, due to shared magnocellular system.


Author(s):  
NYu Mal’kova ◽  
MD Petrova

Summary. Introduction: Visual fatigue is caused by changes in the muscular apparatus and retina of the eye and is characterized by deterioration in their functional activity. Along with an increase in work experience and age, workplace visual stress promotes the loss of performance. Known methods of visual fatigue prevention and eye strain relief are ineffective. In this regard, a technique of relieving visual fatigue using scattered low-level red laser radiation was developed and patented. The purpose of our study was a retrospective evaluation of effectiveness of the visual fatigue reduction technique. Materials and methods: We examined two groups of women (PC operators and jewellers) aged 43–57 years experiencing visual stress at work and practicing the method under study over the previous 20 years. The state of daylight vision was assessed by adaptation time. Results: A five-day testing of the method of visual fatigue relief showed stabilization of the light sensitivity threshold throughout the work shift. Over the 20-year period, the female workers had had no complaints of eye strain, burning or lacrimation. Objective studies of the functional state of the organ of sight showed that the light sensitivity threshold during the working day in two study groups was significantly lower than that in the control group with no preventive measures taken. Conclusions: We established that using the technique of eye strain relief based on a two-minute binocular exposure to red laser radiation with the power density of 2×10–7 W/cm2, a 5-day course every six months over the period of 20 years, helped retain retinal activity in terms of light sensitivity, thus preventing visual fatigue.


Neurology ◽  
1997 ◽  
Vol 49 (2) ◽  
pp. 645-645
Author(s):  
R. B. Daroff
Keyword(s):  

2019 ◽  
Author(s):  
João Vitor Macedo Romera ◽  
Rafael Nobre Orsi ◽  
Rodrigo Filev Maia ◽  
Carlos Eduardo Thomaz

This work investigates reading patterns based on effects of the Meares-Irlen Syndrome (SMI), a visual-perception deficit that affects indirectly our cognitive system. The most common symptoms related to SMI in reading tasks are visual stress, sensation of moving letters and distortions in the text. These effects have been computationally simulated here and using eye-tracking information of a number of participants we have been able to linearly classify each effects with high accuracy.


AAOHN Journal ◽  
2007 ◽  
Vol 55 (10) ◽  
pp. 414-420 ◽  
Author(s):  
Jeffrey R. Anshel

This article provides information about visual function and its role in workplace productivity. By understanding the connection among comfort, health, and productivity and knowing the many options for effective ergonomic workplace lighting, the occupational health nurse can be sensitive to potential visual stress that can affect all areas of performance. Computer vision syndrome—the eye and vision problems associated with near work experienced during or related to computer use—is defined and solutions to it are discussed.


1985 ◽  
Vol 62 (6) ◽  
pp. 361-364 ◽  
Author(s):  
MARTIN H. BIRNBAUM
Keyword(s):  

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