Articles tagged with Vision Disorders
Researchers will study neural mechanisms of visual perceptual learning (VPL) to generalize across the visual field, improving vision rehabilitation and AI systems. The project aims to develop a unified model of visual processing, VPL, and attention.
A clinical trial found that ivermectin can be safely given to young children weighing as little as 5 kilograms, challenging existing manufacturer restrictions. The study's results could spur progress against diseases like intestinal worms, scabies, and river blindness.
Spanish researchers at UMH have developed a new generation of visual neuroprosthesis capable of bidirectional communication with the cerebral cortex. The system uses a small external camera to capture images, which are processed electronically and converted into electrical stimulation patterns sent to the occipital cortex. Participants...
Researchers at Wayne State University are investigating how eosinophils influence corneal response to infection, focusing on microbial keratitis and potential therapeutic strategies to preserve vision. The goal is to identify new treatments that fight infection while minimizing tissue damage.
Researchers at Aalto University have developed a promising new treatment approach for dry age-related macular degeneration (AMD), which can potentially stop the disease's progression. The novel method uses heat and near-infrared light to trigger healing responses at a cellular level, strengthening protective mechanisms of affected cells.
A team of researchers has developed an artificial retina model using 3D printing technology, which closely replicates the pathological microenvironment of retinal vein occlusion. The model exhibited responses similar to those observed in clinical cases, validating its potential as a preclinical drug evaluation system.
A cohort study found that GLP-1 receptor agonist use was associated with a reduced risk of developing nonexudative AMD, but not progression to exudative AMD in individuals with nonexudative AMD. This study may inform future randomized trials evaluating the ocular effects of GLP-1RAs in nondiabetic populations.
A pioneering eye device has restored reading vision to people with sight loss, allowing them to read letters, numbers, and words through a prosthetic eye. The PRIMA chip operation involves an implant paired with augmented-reality glasses, enabling patients to regain their independence and confidence.
A wireless retinal implant has been shown to restore central vision in patients with advanced age-related macular degeneration (AMD), with 81% of participants achieving clinically meaningful improvements in visual acuity. The device converted light into electrical signals, stimulating remaining retinal cells and restoring visual inform...
A recent study published in JAMA Ophthalmology found that corneas from donors with diabetes are just as effective for surgery as those without the disease. The results suggest that the number of corneas available for transplant worldwide could be significantly increased, improving outcomes for patients seeking sight-restoring transplants.
A study of 5.4 million older Americans found that internal migrants have significantly better health outcomes than those who remain in their birth state. Those from abroad also showed a stronger health advantage when education levels were taken into account.
A study by UC Riverside researchers identifies a strong connection between demyelination and seizure activity in multiple sclerosis. The findings suggest targeted treatments could address the root cause of seizures without suppressing overall brain activity.
Researchers developed AI-powered BlinkWise glasses that track blinking patterns to assess fatigue, mental workload, and eye-related health issues. The device uses radio signals to detect minute eyelid movements with unprecedented detail, preserving privacy and using minimal power.
Researchers developed an mRNA vaccine that suppresses abnormal blood vessel growth in mouse models of age-related macular degeneration. The vaccine is as effective as current therapies and offers a convenient alternative to frequent eye injections.
Exposure to lower levels of air pollutants is associated with improved vision in children, suggesting that reducing exposure could slow the progression of myopia. Children who live in areas with cleaner air have better vision, especially younger students.
A study of nearly 30,000 Chinese children found that air pollution, particularly nitrogen dioxide and fine particles, is a significant risk factor for childhood myopia. Exposure to poor air quality can cause oxidative stress and inflammation of the eye, potentially harming vision.
Researchers are testing whether low-concentrate atropine drops can delay the onset of myopia in children. The study aims to reduce the risk of sight-threatening complications later in life by decreasing how nearsighted someone becomes.
Researchers have identified over 120 genetic signals shaping foveal development, including pathways involved in vitamin A metabolism and retinal cell fate. The study provides the first comprehensive genetic dissection of human foveal pit architecture, revealing new insights into childhood visual disorders.
A recent study has found that people with psoriasis are at a significantly higher risk of developing AMD, including both exudative and non-exudative forms. The study suggests that biologic therapies may offer protective benefits for individuals with psoriasis.
A new study shows that laser treatment, PRK, is as safe and effective in treating myopia in older teenagers (17-18 years) as it is in adults. The procedure achieved excellent results with around 64% of teenagers' eyes achieving 20/20 vision.
A study found that more than half of the general population in the USA and Europe experience dry eyes, with only 20% of European patients and 17% of US patients receiving a diagnosis. The delay in seeking treatment is concerning, as early intervention can prevent inflammation and worsening symptoms.
Researchers developed a new treatment using specially formulated eye drops that improved near vision for patients with presbyopia. The study found that the majority of patients could read extra lines on the Jaeger chart after using the eye drops, and improvements were sustained for up to two years.
Researchers used AI to assess images of patients' eyes and predict those who needed prompt treatment, successfully sorting up to 90% of patients. The study's findings could lead to earlier treatment and reduced unnecessary monitoring for patients with keratoconus.
Two new studies show that cataract surgery on both eyes can be safe and effective for most patients to perform immediately after surgery, with high rates of independence and minimal need for assistance. Patients receiving multifocal lenses achieved the best visual outcomes, with over 85% achieving 20/20 vision or better.
A team of researchers has received funding to study the PRPH2 gene, crucial for normal vision, but when mutated causes a range of retinal diseases leading to blindness. They aim to uncover the underlying mechanisms of PRPH2-associated pathology to develop effective therapies.
Researchers at Seoul National University of Science and Technology developed a microelectrode with three-dimensional carbon nanotubes that efficiently conduct electricity while being soft like tissue. The arrays demonstrated stable insertion in brain tissues, precise recording of visual responses, and reduced inflammatory responses.
Researchers at Wayne State University are developing novel therapies to treat ocular chemical injuries using host-derived metabolites. The project aims to reduce inflammation, promote corneal nerve regeneration, and enhance wound healing, with potential for clinically translatable treatments that can preserve vision.
Researchers mapped fluid reservoir dynamics in scleral lens wear, finding rapid changes within the first two hours and regional asymmetry. The study emphasizes the need for comprehensive evaluation of peripheral corneal areas to ensure optimal lens fitting and ocular health.
Glaucoma is a leading cause of vision loss, with over 7.7 million people globally affected in 2020. The new microstent reduces excessive fluid buildup and intraocular pressure, supporting the eye's natural space and improving treatment efficacy. Its durable nickel-titanium alloy enables long-term safety and functionality.
Cohort study finds GLP-1 receptor agonist use associated with modestly increased risk of incident diabetic retinopathy; however, those with preexisting DR experience fewer sight-threatening complications. Regular screening and monitoring recommended for all T2D patients on GLP-1 RAs.
A new study published in JAMA Network Open reveals that patients with type 2 diabetes prescribed semaglutide or tirzepatide are at increased risk of nonarteritic anterior ischemic optic neuropathy and other optic nerve disorders. The overall risk is low, but highlights the need for close monitoring of these conditions.
Researchers have established apple snails as a system to study eye regeneration, which may hold the key for restoring vision due to damage and disease. The team discovered that the snail eye is anatomically similar to humans and can regrow itself, with genes such as pax6 playing a crucial role in development.
In a breakthrough study, researchers at the University of Rochester Medical Center found that microglia cells respond differently than neutrophils to photoreceptor damage in the retina. This discovery has high implications for treating vision loss caused by photoreceptor cell damage.
A new route of delivering gene therapy is being explored, potentially reducing invasiveness and increasing accessibility. Researchers will test a novel approach on non-human primates, aiming to expand access to office-based treatments.
Scientists have identified a potential treatment strategy for ADOA by targeting the SARM1 protein, which triggers axon degeneration in retinal ganglion cells. Deleting or disabling SARM1 preserves RGCs and maintains vision in a mouse model.
Researchers created a new way to measure short-sightedness that better predicts long-term risk of serious retinal damage. The approach uses routine eye scans and AI to identify individuals at higher risk, who may require more tailored management to prevent vision loss.
A UCL-led study suggests that community-based technician-led virtual review clinics could significantly reduce wait times for patients with stable chronic eye conditions. The research found that appointment delays decreased by an average of 8.1 days per week after the clinic's launch, leading to a faster reduction in waiting times.
Researchers found that rod bipolar cells can form new functional connections with cones when their usual partners stop working in retinitis pigmentosa. This adaptation mechanism could reveal new targets for treatments aimed at preserving vision.
Researchers have identified a previously unknown organelle called the hemifusome that plays a crucial role in cellular sorting and recycling. This discovery could lead to targeted treatments for complex genetic disorders like Hermansky-Pudlak syndrome, which affects multiple systems in the body.
A new study found that increasing apolipoprotein M levels can slow or block progression of age-related macular degeneration, a leading cause of blindness in people over 50. The researchers also found that ApoM triggers a signaling pathway that breaks down cholesterol deposits.
A recent study published in The American Journal of Pathology has discovered that ADAM10 regulates abnormal blood vessel growth in the retina, which can cause vision loss or impairment. The findings suggest that targeting ADAM10 or its downstream effectors, such as Ephrin B2, may offer novel strategies for managing or preventing retina...
Scientists have discovered that heparan sulfate in Bruch's membrane traps lipoproteins, leading to drusen formation and vision loss. Targeting this interaction may prevent or reverse early signs of AMD.
The New York Eye and Ear Infirmary of Mount Sinai has opened a comprehensive center for refractive solutions, providing innovative treatment options for patients requiring refractive correction. The center offers streamlined care for premium cataract and corneal refractive procedures, including LASIK and custom LASIK.
A wearable device developed by researchers in Brazil uses a camera and tactile signals to warn visually impaired users of obstacles above the waistline. The device was tested on 11 blind adults and showed promising results, with participants reporting feeling more secure and completing routes with ease.
The University of Colorado Anschutz Medical Campus has received a historic $40 million gift to support research into treating and curing serious eye diseases like macular degeneration and glaucoma. The gift will also enable the development of new technologies and recruit top talent.
A new study by Anglia Ruskin University found that global refractive correction rates are at 65.8%, six percentage points lower than in 2010, and urge urgent action to meet the WHO's target of a 40% increase by 2030.
Researchers at the University of Pennsylvania developed novel promoters that drive specific gene expression in rod and cone photoreceptors, outperforming most currently used promoters. These tools address the challenge of treating advanced stages of inherited retinal diseases, potentially restoring vision.
A new low-cost, diode-based laser system safely emulsifies cataract tissue without damaging surrounding tissue. The technology has the potential to significantly reduce cataract surgery costs and complexity, bringing sight-saving treatment to millions worldwide.
A recent study found that mildly elevated eye pressure can distort blood vessels and lead to oxygen deficit in the eye. Researchers used 3D modeling and fluorescent dye to investigate how ocular hypertension affects the eye, revealing a potential new method for diagnosing glaucoma earlier.
The USPSTF recommends early, universal screening for syphilis infection during pregnancy to prevent congenital syphilis. Untreated syphilis can cause premature birth, low birth weight, and stillbirth in the fetus.
Researchers at Wayne State University are developing a new treatment to prevent diabetic corneal complications, which can lead to vision loss and poor healing. The project combines two naturally occurring peptides to target inflammation, delayed healing, and nerve degeneration.
A study by Dr. LEE Seung-Hee reveals how the brain dynamically adjusts sensory input prioritization depending on movement, with vision taking priority for navigation. The posterior parietal cortex and secondary motor cortex play key roles in this process.
A study found that patients with diabetes who recognize ophthalmology consultation recommendations are twice as likely to undergo a fundus examination. Individuals who recognized the recommendation were also more likely to understand the recommended frequency of ophthalmology visits.
A study published in the Archives of Gerontology and Geriatrics Plus found that the prevalence of older Americans without disabilities increased from 61% in 2008 to 65% in 2017. This represents a significant improvement, with an additional 2.07 million older Americans potentially having had disabilities if trends had remained constant.
A new study has identified genetic and demographic factors that increase the risk of developing age-related macular degeneration (AMD). The research found a significant difference in AMD risk between European and non-European descent populations, highlighting the importance of diverse ancestry groups in understanding this condition.
A new shape-changing device called Shape has been developed to help people with visual impairment perform a location task as effectively as sighted people. The study found that participants with visual impairment located targets significantly faster using Shape than with vibration technology, and preferred it over current methods.
A $6 million grant from the California Institute for Regenerative Medicine is driving research into a new treatment for dry age-related macular degeneration, a leading cause of blindness in older adults. The therapy aims to halt or reverse disease progression using stem cell-derived healthy retinal pigment epithelium cells.
A team of researchers has identified a mechanism that interferes with the splicing process in a more subtle way, leading to cell death. The study reveals that spliceosome subunits U4, U5, and U6 are normally stabilized by protein USP39, but when mutated or absent, stability is compromised, causing incorrect connections during splicing.
WorldScribe, a new software, uses generative AI to provide real-time text and audio descriptions of surroundings for people who are blind or have low vision. The tool can adjust the level of detail based on user commands or camera frame time.
Researchers have developed two smartphone apps that provide safe indoor navigation, route guidance, and return to a previous location. The apps use built-in sensors, such as accelerometers and gyroscopes, to track the user's progress, reducing reliance on visual cues.