Visual fatigue of VDT (visual display terminal) operators poses a serious problem for corporations where VDT work is a major part of operations. In this study, an investigation in a corporation was carried out to examine the effect of polyphenol on recovery from visual fatigue of the visual function caused by working at a VDT. Three kinds of parameters were used for evaluating the effect of pol...

For large scale testing it is advantageous to have investigation methods which are easily applied and do not need the intervention of specialists or even of test assistants. In order to create such measuring methods we have realized new ophthalmic tests as presentations on a VDU screen. These new tests will hypothetically fit the problem of visual fatigue better than do the classical means beca...

http://www.avehjournal.org doi:10.4102/aveh.v74i1.33 Comfortable reading and the performance of related near point activities involve efficient accommodative and vergence systems. However, accommodative and convergence anomalies are associated with various symptoms of asthenopia that impair efficient near point tasks. In Part 1 of this two-part article, studies on vergence anomalies were review...

INTRODUCTION We compared the impact of two-dimensional (2D) versus three-dimensional (3D) visualization on both objective and subjective measures of laparoscopic performance using the validated Fundamentals of Laparoscopic Surgery (FLS) skill set. SUBJECTS AND METHODS Thirty-three individuals with varying laparoscopic experience completed three essential drills from the FLS skill set (peg tra...

Some health problems such as photo sensitive epilepsy, motion sickness, and visual fatigue might be caused by 3D TV. This study evaluated the effects of watching 3D TV in elderly (=75.39±4.16 years) and young subjects (=26.25±2.53 years) using electrocardiography (ECG) and a subjective evaluation. As a result, the r-r interval changes of the old showed significant difference (p<0.05) comparing ...

[This retracts the article on p. 318 in vol. 9.].

[Purpose] This study compared the orbicularis oculi muscle activity during computer work with single and dual monitors. [Subjects] Ten computer workers 22-27 years of age were included in this study. [Methods] Subjects performed computer work with single or dual monitors, and the activity of the right orbicularis oculi muscle was measured with a MP150 system. [Results] The muscle activity of th...

A review of available literature has shown something of a paucity of suggested and applied microscopic techniques on the identification of human spermatozoa in forensic casework. Phase contrast microscopy (PC) has been mentioned as the desirable technique by Kirk [1] and Kivela [2]. The advantages of PC as compared with bright-field are well known and would most certainly include simplifring th...