Articles tagged with Vision
Around 450,000 UK children with color blindness are being failed by the education system due to a lack of recognition and support from schools. Colour blindness affects how people see the entire visible colour spectrum, not just red and green.
Researchers propose a new working definition for CVI, a leading cause of blindness and visual impairment in children. The definition is based on five key elements and includes early detection, neuroplasticity, and functional deficits.
A brain-based condition causing vision problems in children has been defined by a NIH-led team. The five elements of cerebral (or cortical) visual impairment (CVI) include difficulty visually searching for objects or understanding complex motion.
Researchers developed a method to measure the brightness of two-photon stimuli using photometric units, enabling the quantification of perceived brightness. The study found that two-photon retinal illumination can reach almost 670 cd/m² in safe laser power ranges.
A new study from the University of Toronto finds that childhood neglect is associated with a range of mental and physical health problems in adulthood. The presence of a supportive adult and higher socioeconomic status largely attenuate this relationship.
A new study found that consuming pistachios daily can significantly improve eye health by increasing macular pigment optical density due to the plant pigment lutein. Lutein may also benefit brain function by reducing oxidative stress and inflammation, supporting overall healthy aging.
Researchers found that using valacyclovir for a year can decrease the risk of new or worsening eye disease and prevent vision loss associated with shingles. The study, which enrolled over 500 participants, showed that this treatment reduced the risk of complications by 30%.
A new article investigates whether auditory magic tricks can be created for a blind audience, finding that the brain processes visual and auditory information differently. This study underscores the importance of making magic more inclusive for people with blindness.
A UD researcher has received a $2.3M NIH grant to investigate inherited retinal diseases. The funding will support groundbreaking research that could lead to significant breakthroughs in understanding and addressing these conditions.
Researchers at Karolinska Institutet successfully used gene therapy to improve vision in 11 out of 12 patients with Bothnia dystrophy, a form of hereditary blindness. The treatment involved injecting a specially designed virus under the retina, which produced normal protein and restored visual function.
Scientists from Trinity College Dublin have developed a gene therapy that protects retinal ganglion cells and improves their function in animal models of glaucoma. The therapy has also been shown to increase oxygen consumption and ATP production in human retinal cells, indicating enhanced cell performance.
A Phase 1/2 clinical trial found significant vision improvements in patients with Leber congenital amaurosis, a rare inherited condition causing early childhood blindness. The gene therapy, ATSN-101, demonstrated efficacy in correcting genetic mutations and restoring vision for up to 12 months.
Researchers found that vision impairments contribute significantly to the development of dementia in older adults, with a population attributable fraction ranging from 4.9% to 19.0%. The study highlights the importance of incorporating multiple objective measures of vision impairment into assessments to capture its impact on dementia.
A competition encourages magicians to craft mesmerizing sound-based tricks that evoke wonder and amazement without relying on visual cues. The initiative aims to make magic more inclusive for individuals with visual impairments, allowing them to experience the art in a new way.
A new four-year, $459,000 grant will develop software and hardware tools to increase accessibility in STEM fields for persons with disabilities. The project aims to enhance data technologies for blind and low-vision users, making it easier for them to participate in STEM research and education.
Synchronized foot vibrations and posture significantly enhance virtual walking experiences, with standing postures showing the most improvement. This technology has practical applications in training, rehabilitation, and entertainment, offering improved immersion and realism.
Researchers found that blind cavefish develop more taste buds on their head and chin, particularly after 18 months of age. This adaptation is thought to be an adaptive trait, allowing the fish to better detect food sources like bat guano.
A study funded by the National Eye Institute found that 6.5 million Medicaid enrollees lacked routine adult eye exam coverage, while 14.6 million had no eyeglasses coverage. State-level variation in coverage policies and copays hindered access to essential eye care services.
A new poll finds that over 30% of people in their 50s and early 60s provide care to at least one person with a health issue or disability, while 1 in 10 juggle taking care of three or more people. The majority of caregivers are caring for someone with a physical disability or mobility problem, followed by memory or thinking issues.
A new study from the University of Washington suggests that cortical implants like Blindsight, developed by Neuralink, will not provide high-resolution vision. Instead, researchers found that a single electrode stimulates only one neuron, and image sharpness is determined by thousands of neurons in the brain.
A new study published in Optometry and Vision Sciences found that people with early vision loss are less accurate at estimating the distance of sound compared to those who lose sight later in life. This difficulty can have safety implications, such as judging distances while crossing roads.
Researchers at UCL and Moorfields Eye Hospital have identified biomarkers that predict which patients with glaucoma are at higher risk of continued vision loss despite conventional treatment. Mitochondrial function in white blood cells is lower in people with glaucoma, leading to faster vision loss.
Researchers discuss the critical role of the retinal pigmented epithelium in human vision and its susceptibility to aging. The study highlights the importance of understanding molecular and cellular mechanisms driving age-related pathological changes in vision decline.
This study compared the effects of augmented reality (AR) visual and auditory instructions on space station astronauts completing procedural tasks. The results showed that AR visual guidance was superior to auditory guidance in terms of task completion time, operation error frequency, and eye movement data.
A team of scientists developed a method to quickly measure the frequency characteristics of photoreceptors' response to flicker stimulation, allowing for faster diagnosis of visual disorders. The new technique, called f-ORG, reduces the time required to conduct experiments and analyze data.
Researchers have developed a new perovskite-based camera inspired by the structures and functions of bird's eyes, specializing in object detection. The camera features an artificial fovea and multispectral image sensor that detects UV and RGB light, providing greater motion detection capabilities than conventional cameras.
A new study has mapped priorities for UK eye care research, highlighting conditions like glaucoma and age-related macular degeneration as key areas of focus. The survey involved 2,240 healthcare professionals and patients, revealing opportunities for improved prevention, diagnosis, and treatment.
Researchers found that early exposure to limited color information helps the brain develop robust object recognition skills. Children born blind who have their sight restored later in life struggle with identifying objects in black-and-white images due to overreliance on color cues. The study suggests that early visual experience plays...
Researchers at the University of East Anglia have developed a novel resin for 3D printing intraocular devices, offering unprecedented levels of customization and design precision. This innovation has potential to enhance eye care globally with tailored lenses, faster production, and cost reduction.
Researchers discovered that SARS-CoV-2 can infect the inside of the eyes even when it doesn't enter through the surface. The virus breaches the blood-retinal barrier, inducing a hyperinflammatory response and causing cell death in the retina, which may lead to long-term eye damage.
A new IU study reveals that young infants' daily-life input is unique to their age, characterized by high-contrast edges and simple patterns, which serve as a foundation for human vision. This finding has implications for addressing lifelong visual deficiencies and improving AI visual systems.
Researchers have developed a prototype 'smart' contact lens that measures eye pressure accurately, regardless of temperature. The dual-circuit design removes temperature-related errors, enabling early detection and monitoring of glaucoma.
Residential segregation, income inequality, and persistent poverty are associated with higher rates of vision difficulty and blindness in this cross-sectional study. The findings highlight the importance of understanding neighborhood characteristics on vision health outcomes.
Researchers created an ultra-small vision implant with single-neuron sized electrodes, allowing for thousands of 'pixels' to be stimulated simultaneously. The implant's unique combination of flexible materials ensures long-term functionality and stability.
A pioneering CRISPR gene editing trial has demonstrated significant improvement in vision for 79% of participants with inherited retinal degeneration. The study's findings support further research into the potential of CRISPR-based treatments for inherited blindness.
Researchers at Aston University discovered that experienced Ordnance Survey mapmakers and novices interpret aerial images differently. The experts rely on stereoscopic cues, while novices focus on lighting cues, leading to improved performance through repeated exposure and perceptual learning.
Extended periods of patching for children with unilateral congenital cataracts do not negatively impact parenting stress, child motor development, behavior, or self-perception. A new study found that continuing to patch throughout preschool years is crucial in preventing blindness and promoting healthy vision.
Researchers at NIH developed a novel AI-based method called P-GAN to improve next-generation imaging of cells in the retina. The technique reduces imaging acquisition and processing time by 100-fold, yielding greater contrast and improving image quality.
A Mediterranean marine worm has evolved massive eyes, rivaling those of mammals, to see in the dark. The worms use their exceptional vision to detect bioluminescent signals and may have a secret language through light communication.
Researchers at Queen Mary University of London discovered that newly hatched chicks can link touch and vision without prior learning, suggesting a pre-wired ability for cross-modal perception. This finding contradicts long-held beliefs and opens new avenues in understanding brain processing across senses.
Research by York University finds astronauts can safely assess distances in microgravity environments, which may provide clues to understanding balance systems on Earth. The study suggests that humans are able to compensate for the lack of gravity using vision, enabling precise movements and evasive maneuvers.
A new study by Johns Hopkins University reveals that vision impairment is linked to increased symptoms of depression and anxiety, as well as social isolation among older adults. The research emphasizes the need for enhanced support and care for individuals with vision impairment.
A recent UCI study found profound similarities between humans and insects in producing the critical light-absorbing molecule of the retina, 11-cis-retinal. The research provides new insights into retinal disease origins and potential therapeutic targets, with implications for understanding loss-of-function mutations in RPE65.
The study reveals a significant prevalence of refractive error in African American adults, affecting their quality of life and work productivity. Providing universal vision care coverage can reduce this burden by over two-thirds, improving lives and increasing economic opportunities.
Researchers at Mount Sinai Health System developed a novel protocol for rapid diagnosis of eye stroke, improving outcomes and preserving vision. The protocol uses high-resolution retinal imaging in emergency rooms, along with remote consultation, to confirm diagnosis and expedite care.
Researchers developed a spiral-shaped lens that provides clear focus at different distances in varying light conditions, potentially revolutionizing ophthalmology. The lens works by creating multiple clear focus points through optical vortices, allowing for improved depth perception and visual acuity.
Gaps in vision screening pathways disproportionately affect historically marginalized groups, leading to poor outcomes and inadequate care. The study highlights the need for improved strategies to address these disparities.
A study published in Applied Animal Behaviour Science found that dogs are most engaged when watching videos featuring other animals, with content featuring other dogs being the most popular. The research aims to improve the assessment of canine vision and support a healthier life for dogs as they age.
A Baylor University chemistry professors develop a codex using lithophane, converting images from scientific textbooks into tactile formats for students with blindness. The study found that students with blindness can accurately describe, recall and distinguish high-resolution data and imagery at an average accuracy of 88%.
A NSF-funded project, MABLE, is developing a digital app using crowdsensing, AI, and robotics to empower individuals with responsive maps and turn-by-turn instructions. The app aims to improve accessibility and navigation for persons with visual or mobility impairments, such as those with low vision and wheelchair users.
A team of researchers has created an audio feedback system that uses neuromorphic cameras and speaker arrays to provide real-time audio cues in three dimensions. The system enables blind players to track the ball and movements, allowing them to play table tennis with greater accuracy.
Researchers using acoustic imaging measure eye size and growth to better understand myopia's contributing factors. Education level, light stimulation, and outdoor time are found to correlate with the development of myopia. Current solutions like glasses and contacts are being replaced by eyedrops for children and collaborative efforts ...
Researchers have successfully converted human retinal cells, specifically Muller glia, into neurons in a lab setting using an artificial fish-like genetic program. This breakthrough could potentially serve as a new source of neurons to treat vision loss caused by disease or trauma.
Researchers at Nagoya University identified the link between iron and blindness caused by ocular toxoplasmosis, a parasite affecting one-third of the world's population. Controlling iron levels has shown promise as a potential cure.
Older adults with a GED certificate have higher odds of cognitive impairment, hearing impairment, and limitations in daily activities compared to high school graduates. The study suggests that the cognitive reserve hypothesis may partially explain these disparities, as well as access to healthcare services.
Researchers developed 'acoustic touch' smart glasses that translate visual information into distinct sound icons, enhancing the ability of blind or low-vision individuals to navigate their surroundings. The technology significantly improved object recognition and reaching abilities, empowering independence and quality of life.
A recent human study found that grape consumption improved key markers of eye health in older adults, including increased Macular Pigment Optical Density (MPOD) and reduced AGEs. Regular grape intake was also shown to increase plasma antioxidant capacity and total phenolic content.
A new compound developed at the University of Illinois Chicago potentially offers an alternative to injections for wet age-related macular degeneration, a leading cause of blindness. The drug targets End Binding-3 and has been shown to reverse damage and promote regenerative processes in animal models.
Researchers found that fly brain uses a three-step computation to distinguish motion patterns, dividing the workload across multiple levels. This approach helps flies detect even slight changes in motion and stay on course.
Researchers have developed high-resolution near-eye displays with integrated light field technology, overcoming limitations of earlier displays. The new designs feature improved resolution, pixel density, and vision correction capabilities, resulting in enhanced visual comfort and immersive VR experiences.