BACKGROUND Head-mounted displays (HMDs) can help anesthesiologists with intraoperative monitoring by keeping patients' vital signs within view at all times, even while the anesthesiologist is busy performing procedures or unable to see the monitor. The anesthesia literature suggests that there are advantages of HMD use, but research into head-up displays in the cockpit suggests that HMDs may ex...

Large wide screen displays are increasingly being used to provide information for situation awareness. They may employ virtual reality (VR) technology for moving displays that are immersive and interactive. Yet such displays have potential to cause psychophysiological side effects, including symptoms of nausea, instability and eyestrain. Symptoms may occur while viewing and may also persist for...

In theory no doubt any existing refractive error should be found and treated, so that the individual may enjoy the most perfect optical conditions possible. But it must always be borne in mind that the eyes are only part of the living organism, dependent on the whole, deriving from it and adding to it. This may modify the position. A comfortable and efficient ocular mechanism depends on much mo...

Three groups of data entry female visual display terminal (VDT) workers from Norway (n = 30), Poland (n = 33) and the USA (n = 29) were compared. Before intervention, the Norwegian group reported more neck pain compared with the Polish group. The Polish group reported less shoulder pain than both the U.S. and the Norwegian groups. The clinical examination documented fewer symptoms and signs of ...

In the present study we compared the ability of commonly used diagnostic criteria for CI to discriminate between symptomatic pediatric patients and normal controls with corresponding sensitivity and specificity parameters of a novel test of Near Point of Fixation Disparity (NPFD) and a measure of Associated Positive Fusional Convergence (APFC). The results yielded 95% sensitivity and 100% speci...

Endoscopic image enhancement has become a very popular research field due to the success of minimally invasive interventions and the innovation of new technological treatment and diagnosis tools such as stereoscopic laparoscopes and the wireless capsule endoscopy. In spite of the important advances achieved in terms of image processing and enhancement, only a few techniques can be adapted to st...

Augmented environments superimpose computer enhancements on the real world. Such augmented environments are well suited for collaboration of multiple users. To improve the quality and consistency of the augmentation the occlusion of real objects by computergenerated objects and vice versa has to be implemented. We present methods how this can be done for a tracked user's body and other real obj...

Deteriorating Retinal function has been shown to be involved in the etiology of Parkinson’s disease (PD).1,2 However, recent work suggests that PD may be caused or worsened by retinal deterioration. Research also shows that treating Parkinson’s with light through the eye not only causes symptomatic improvement, but may also be disease modifying.3 Animal studies have sh...

Popular articles and manufacturers’ literature assert that full-spectrum fluorescent lighting improves cognitive performance, vision, and mood. Previous experimental investigations have failed to demonstrate these effects. This paper reports an attempt to replicate work by Veitch, Gifford, and Hine (1991) concerning the effects of information sets about lighting on performance and mood. In this...

Much has previously been written on the importance, relevance, and critical application of the CIA (Confidentiality, Integrity, Availability) Triad security model. However, operational emphasis on the CIA model has historically been placed primarily on ”hard” or widely addressed topics relating to prevention, auditing, and enforcement. This type of emphasis addresses ssues such as policies and ...