Purpose:To study the ocular pathology of hyperopic patients presenting to tertiary health care centre. Methods: This was a retrospective observational that involved 60 eyes 30 with hypermetropia complaining diminution vision asthenopic symptoms like tiredness eyes, frontal or frontotemporal headache, watering and mild photophobia. There were three groups based on criteria age, i.e, <20 years...

Virtual Reality (VR) displays have been developed for years; lots of technological challenges are still remaining to improve presence and hopefully avoid oculomotor trouble, eyestrain and sickness. Although the technology is not mature enough to avoid discomfort, the market already proposes devices to a large public, especially head-mounted devices. Many questions arise: Will customers adapt to...

PURPOSE Visual stress (VS) is characterised by symptoms of visual perceptual distortions and eyestrain when viewing text, symptoms that are alleviated by individually prescribed coloured filters. A recent review supports the existence of VS and its treatment, but noted that controversy remains, in part due to inconsistencies in the diagnosis of the condition. The present paper reviews the diagn...

Convergence insufficiency (CI) is a prevalent binocular vision disorder with symptoms that include double/blurred vision, eyestrain, and headaches when engaged in reading or other near work. Randomized clinical trials support that Office-Based Vergence and Accommodative Therapy with home reinforcement leads to a sustained reduction in patient symptoms. However, the underlying neurophysiological...

Computer has been incorporated into day to day activities of almost every field of human endeavour, offices to different shops. Therefore many people are now working with computer for longer hours of time. There is no doubt that this incorporation of computer has helped users a lot but it also brings problems to the users. One of the problems is Repetitive Strain Injury (RSI). Five hundred and ...

Laparoscopic procedures have become increasingly popular. The use of 3-dimensional (3D) vision might aid in performing laparoscopic procedures. The aim of the study is to show the main results of applying the “Decision-oriented Health Technology Assessment” (doHTA) method for the assessment of 3D laparoscopic system compared to conventional two-dimensional (2D) laparoscopic system to support th...

Online games are applications that can be used as entertainment and recreation however if done repeatedly for an excessive duration they cause eye fatigue. Eyestrain or asthenopia is fatigue occurs in the organ of vision. The purpose this research to know relationship between habit playing online with complaints Adolescents. design descriptive correlation a cross-sectional approach. sample amou...

INTRODUCTION Virtual-reality solutions have successfully been used to train distributed teams. This study aimed to investigate the correlation between user characteristics and sense of presence in an online virtual-reality environment where distributed teams are trained. A greater sense of presence has the potential to make training in the virtual environment more effective, leading to the form...

Purposes: a) comparison of two presbyopia correction methods – with multifocal and monovision contact lenses – by means of precise contrast sensitivity measuring under scotopic, mesopic and photopic conditions simultaneously; b) new computerized AltTechNV Thru‐luminance CSF test trial operation. Methods: contrast sensitivity of 14 initial presbyopes (40÷51 y.o., never wore contact lenses, use...