View clinical trials related to Asthenopia.
Filter by:This study will determine how multifocal contact lens correction affects symptoms of discomfort and asthenopia in a group of myopic contact lens wearers in the non-presbyopic age range (ages 30-40 years).
The aim of the present study is to value the effectiveness of an Eye-Cervical Re-education Program (ECRP) to decrease pain and increase mobility in the cervical area compared to a Combined Physiotherapy Protocol (CPP) in patients with chronic neck pain symptoms.
Children in the United States watch an average of twenty-eight hours of television and play around thirteen hours of video games per week. The objective of this experiment was to see if a specific eye exercises could strengthen the eye muscles and improve the peripheral vision range of children and adults.
Current virtual reality device makes motion sickness and visual fatigue having limitation for recreation and other clinical approaches. Still there is no standardized quantification of motion sickness and visual fatigue measurement with objective approach. Current biofeedback accompanied with virtual reality would be promising tool for stress relief.
The proposed study aims to test if Gunnar computer glasses provide any advantages, in comparison to no glasses, on the following aspects in computer-related office work: - Any enhancement on visual performance of basic visual function, including visual acuity, contrast sensitivity, color discrimination, etc. - Any enhancement on visual performance of typical office work, including reading, word-spelling check, number searching, or target identification. - Any benefit in objective viewing comfort measured with viewing distance, blink frequency, post-viewing pupil size. - Any benefit in subjective viewing comfort reflected on the questionnaire of viewing symptom survey. - Any benefit in viewing comfort and visual performance with increased environmental ventilation or under strong glare. - Any benefit in life quality from daily wearing (e.g., better comfort or sleep quality).
This study seeks to address whether or not different types of daily disposable soft contact lenses may be a beneficial option for patients complaining of eye strain and visual discomfort while using digital devices.
Asthenopia or eye strain describes nonspecific symptoms of an eye when it is tired from intensive work. Vaccinium uliginosum is a flowering plant in the genus Vaccinium. This plant is native to cool temperature regions of the Northern Hemisphere. Considering its antioxidative ingredients, the extract of Vaccinium uliginosum is expected to play a significant role in treating various ocular pathologies. The investigators performed a randomized, case-controlled study in healthy subjects and investigated the protective effect of Vaccinium uliginosum extract (DA-9301) on tablet computer-induced asthenopia.
This study aims to examine the specific effect that 3D game play has on the control of the eyes horizontal movements. It will examine the youngest group of consumers this technology is marketed to, 7 to 11-year-olds and no children under 7 years of age will be recruited to this study as per Nintendo's hardware guidelines, which recommends that children under 7 years of age not play in 3D mode. It will examine the effect of playing in 3D for 30 minutes on horizontal fusional amplitudes compared with a control group playing in 2D for 30 minutes.
This is a research study designed to test the utility of D-shaped bifocal lenses and PRIO Computer Lenses for persons using a computer. We hypothesize that lenses specially designed for computer use may allow more comfortable and productive work on a computer.
Reading can be an uncomfortable and difficult task for some people. Symptoms include unpleasant somatic and perceptual effects, such as eye-strain, headache, and blurred text, despite normal visual acuity. This condition has been called Visual Discomfort, but little is known about the symptoms and frequency of reading problems associated with this disorder. Several studies have proposed that Visual Discomfort is caused by increased noise in the visual system due to spreading cortical activation across different spatial frequency channels. This study examines the prevalence and severity of visual discomfort in a college student population and tests the noisy visual system hypothesis.