Visual Fatigue and Performances for the 40-min Mixed Visual Work with a Projected Screen

Visual Fatigue and Performances for the 40-min Mixed Visual Work with a Projected Screen

Objective: The main purpose of this study is to evaluate the visual angle and ambient illumination effects on visual fatigue and performances while viewing from a projected screen for 40 minutes. Methods: Visual angle (16, 24 and 48 min arc of Chinese character height) and ambient illumination (200 and 750 lux) were the independent variables in this study. Change in critical flicker frequency (...

Immediate Effects of Different Screen Sizes on Visual Fatigue in Video Display Terminal Users

Background: Computer usage has rapidly grown. This is because it helps to resolve problems, i.e., encountered in daily life by individuals. Various monitor screens that have been developed affect the userchr('39')s eyes. Screen size is one of the relevant impacts. Thus, this study compared the immediate effects of two computer screen sizes on visual fatigue in Video Display Terminal (VDT) users...

Visual Tracking using Kernel Projected Measurement and Log-Polar Transformation

Visual Servoing is generally contained of control and feature tracking. Study of previous methods shows that no attempt has been made to optimize these two parts together. In kernel based visual servoing method, the main objective is to combine and optimize these two parts together and to make an entire control loop. This main target is accomplished by using Lyapanov theory. A Lyapanov candidat...

[Work, fatigue, and critical visual fusion frequency].

Near work, visual fatigue, and variations of oculomotor tonus.

One hour of near work produced adaptive changes in the resting states of accommodation and binocular vergence, which may be responsible for different aspects of visual fatigue. Two groups of college students read from either hard copy or a video display terminal (VDT). Immediately before and after reading, the subjects' distance acuity, dark vergence, dark focus, and accommodative response accu...