Articles tagged with Ophthalmology
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.
A team of researchers from Tokyo Medical and Dental University developed a novel kind of optical coherence tomography (OCT) to investigate the detailed structure of the sclera in living patients. They found that the sclera is divided into inner and outer layers with different structural arrangements, which can provide important insight...
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 soft multi-electrode system for electroretinography has been developed to overcome the limitations of traditional devices. The system uses a commercially available soft disposable contact lens with gold mesh electrodes, allowing for simultaneous measurement of electrical potentials from different regions of the retina. This innov...
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.
A new NIH grant will investigate biological processes that contribute to defects in immune response in the eyes of those with diabetes. Researchers aim to understand why diabetic patients are more susceptible to corneal infections and identify methods to reverse these effects.
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 used optical coherence tomography to measure inner retina thickness in Parkinson's patients. The study found that thinner retinas are associated with faster cognitive decline and greater disease severity.
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.
A study led by the University of Cambridge found that AI models like GPT-4 outperformed doctors in diagnosing and treating eye problems. The researchers suggest using AI for triaging patients and providing advice in well-controlled contexts, where access to specialist healthcare professionals is limited.
A groundbreaking study reveals that targeting cholesterol metabolism can mitigate Zika virus-induced ocular pathology, offering promising therapeutic strategies. Researchers identified ABCG1 and SREBP-2 as key players in the pathway, and treatments with LXR agonists or SREBP-2 inhibitors showed promise in animal models.
A new AI technology has been developed to detect severe cases of retinopathy of prematurity (ROP) with 100% accuracy. The system analyzes retinal images and can identify blood vessel anomalies, enabling early treatment and potentially saving sight for thousands of premature infants globally.
A new study finds that gut bacteria can cause blindness in some inherited eye diseases by breaching the body's defenses. Treating these bacteria with antimicrobials may prevent sight loss, offering a potential new approach to treatment.
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 new study published in JAMA Ophthalmology suggests that artificial intelligence can match or exceed the expertise of seasoned ophthalmic specialists in diagnosing and treating patients with glaucoma and retina disorders. The AI system, GPT-4, demonstrated superior performance in response to glaucoma questions and case-management advice.
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.
A recent study found that home environment features, particularly lighting, influence home activity metrics in older adults with visual impairment. The results suggest that home modifications may improve at-home physical activity, highlighting the importance of considering environmental factors in promoting health and mobility.
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 pioneering study published in The American Journal of Pathology reveals the cytoprotective and proregenerative effects of neuropeptide α-MSH in promoting corneal healing after eye injury. The treatment has shown impressive therapeutic potential in reducing the need for corneal transplants.
Social determinants like food insecurity and housing issues were linked to lower likelihoods of receiving diabetic retinopathy screening. The study highlights the importance of addressing barriers to care for promoting health equity.
A retrospective study found that research staff of the same race or ethnicity as patients increased consent rates by 65.1% compared to those of a different race or ethnicity. Employing diverse research teams can improve trust and engagement among potential study participants, according to researchers.
Researchers discovered a non-invasive eye exam that can detect early signs of cognitive decline and cerebral small vessel disease, a major contributor to vascular dementia. The study found connections between altered retinal blood flow and changes in brain structure associated with the condition.
A significant increase in the need for treatment of eye diseases is expected due to the growing elderly population. The number of patients requiring anti-VEGF medication is projected to rise by 50% over the next five years.
Researchers developed an AI foundation model for eye care that can identify sight-threatening eye diseases and predict general health. The model, RETFound, was trained on millions of eye scans from the NHS and outperforms existing state-of-the-art AI systems across complex clinical tasks.
A large UK Biobank study of 427,000 adults found that calcium channel blocker use was associated with an increased prevalence of glaucoma. The study suggests that calcium channel blockers may be a modifiable risk factor for glaucoma through a mechanism that is independent of intraocular pressure.
A study by Lena Havstam Johansson found that nearly 5% of 70-year-olds had undiagnosed glaucoma, which damages the optic nerve and affects vision. Those with glaucoma reported poorer quality of life due to impaired vision, leading them to avoid social activities and feel frustrated.
A study found that a chatbot could generate responses comparable to those of ophthalmologists, without significantly more incorrect information or harm potential. The results suggest that AI can provide adequate support for patients seeking eye care advice, with minimal risk of adverse effects.
A new study published in BMJ Oncology has found that relatively short-term use of immunosuppressant medications to control inflammatory diseases is not associated with an increased risk of developing cancer. The research included over 10,000 participants and tracked their cancer incidence for an average of 10 years.
A new study found that fewer than a third of children have had their vision checked in the past year, with uninsured and public-insured kids having lower rates than privately insured peers. The disparity in screening rates is linked to disparities in primary care visits focused on prevention and early detection.
A study found low primary care vision testing rates for children and adolescents, with lower rates among those without private insurance. Despite yearly testing recommendations, less than half of those with private insurance received testing.
Researchers highlight the need for effective treatment strategies for adenoid cystic carcinoma (ACC) of the head and neck, which is a highly malignant tumor with variable localizations. Proton therapy shows decisive advantages in long-term survival rates for ACC.
A new study published in JAMA Ophthalmology found that vision problems are more common in older adults with dementia. The study of nearly 3,000 older adults showed that even mild vision issues were associated with a higher risk of dementia.
University of Melbourne researchers have discovered that T cells patrol the human eye, protecting it from pathogens and inflammation. The study uses a new imaging technique to capture dynamic behavior of these cells in response to different stimuli.
Researchers found a significant correlation between vitreous humor biomarkers and pathologically confirmed cases of Alzheimer's disease and Chronic Traumatic Encephalopathy. Biomarkers in the vitreous humor may serve as a proxy for neuropathological disease, offering potential early diagnosis and prognostication.
In 2021, 9.6 million Americans had diabetic retinopathy and 1.84 million had vision-threatening forms. The number of people living with diabetes-related eye disease has grown since the last prevalence estimate in 2004.
A study by Brigham and Women's Hospital found that higher levels of diglycerides and triglycerides are associated with an increased risk of primary open-angle glaucoma. The research suggests that these lipid metabolites play a role in the disease's pathogenesis, highlighting potential new targets for prevention or treatment.
A clinical trial found that repeat intraocular corticosteroid injections improved vision in people with persistent or recurrent uveitis-related macular edema, reducing retinal swelling by 35% compared to ranibizumab and methotrexate.
Researchers developed Eye2Gene, an AI system that accurately identifies genetic causes of inherited retinal diseases from retinal scans. The system achieved higher accuracy than human experts in identifying causative genes, with a ranking score above 70% in over 70% of cases.
Researchers developed an AI model to estimate best-corrected visual acuity from fundus photographs in patients with diabetic macular edema, achieving accuracy within one to two lines on a standard chart. The study's findings support the potential of AI in clinical settings, with opportunities for further improvement.
A new study by Flinders University research team led by Professor Justine Smith has found that women are more likely to experience recurrent cases of toxoplasmosis eye disease. The study also revealed significant differences in the type and characteristics of the disease between men and women.
Researchers have developed a custom OCT setup that incorporates a vertical cavity surface emitting laser (VCSEL) diode, which could increase access to OCT imaging and help catch eye problems early. The system performed well in imaging the eye of a healthy volunteer and showed potential for use in biometric eye scanner systems.
A randomized clinical trial suggests that low-dose atropine may provide a treatment option for childhood myopia progression. The study observed a significant reduction in myopia progression over 3 years.
A diagnostic study using 4,095 retinal fundus images found that biomarker-based AI algorithms can be susceptible to racial bias, even when trained on raw images. This issue highlights the need for careful evaluation of AI performance in diverse populations.
Researchers discovered that a certain short-wave or blue sensitive cone circuit is absent in marmosets and differs from the macaque monkey's circuit. This finding suggests that humans have unique neural wiring for color vision that may be linked to recent evolutionary adaptations.
A study found ChatGPT answered less than half of the test questions correctly, scoring 46% initially and 56% after a month. The AI tool performed well on general medicine questions but struggled with ophthalmology subspecialties.
A recent study assessed an AI chatbot's ability to answer ophthalmic questions, finding it answered approximately half correctly. The results suggest that while AI has medical advances, the current chatbot is not yet ready for substantial assistance in board certification preparation.
A deep learning AI model has been developed to screen for retinopathy of prematurity (ROP) in infants at risk of blindness. The tool was trained on images of newborns and found to be as effective as senior paediatric ophthalmologists in discriminating normal retinal images from those with ROP that could lead to blindness.
Scientists from Centre for Ocular Research & Education (CORE) unveiled multiple advancements in 3D printing, accelerating development of drug delivery systems, biodegradable contact lenses, and pharmaceuticals. CORE's innovations include a novel method to fabricate PDMS microfluidic chips with high throughput.
A large study of over 3 million patients receiving the mRNA COVID-19 vaccine found extremely rare cases of retinal vascular occlusion. The researchers concluded that there is no evidence suggesting an association between the vaccine and newly diagnosed RVO, rates similar to those of other vaccinations.
Research by State University of New York College of Optometry suggests that reading lacks diversity in visual inputs, potentially leading to myopia development. The study proposes a mechanism where sustained reading reduces activation of ON pathways, causing eye growth beyond its focus plane and blurring vision at far distances.
Researchers discovered that 'dormant' cone photoreceptors in retinal degeneration continue to produce responses to light and drive retinal activity for vision. The study found that while cones have reduced sensitivity, ganglion cells retain their ability to respond to visual stimuli with similar spatial and temporal sensitivity.
Research suggests Medicare reimbursements for complex cataract surgery are far lower than simpler procedures, resulting in a 'negative' margin. This disparity affects ophthalmologist practice patterns and patient accessibility, particularly for vulnerable populations.
UVA scientists have discovered a new contributor to abnormal blood vessel growth in the eye, which could lead to new treatments for macular degeneration and other vision loss conditions. The discovery identifies a key protein that determines VEGF levels, blocking it has reduced VEGF levels significantly without unwanted side effects.
Disparities in access to pediatric ophthalmological care have increased over the past 15 years, with lower socioeconomic status being a significant factor. Online sources can lead to inaccurate databases, highlighting the need for accurate publicly available information.
Researchers compared two methods of corneal transplant tissue preparation, finding the new DMEK EndoGlide technique to be safe and effective while providing a faster process. The study suggests this method may lead to better long-term outcomes for patients with Fuchs' dystrophy.
Researchers at Boston Medical Center discovered that Black and Hispanic patients had significantly worse vision outcomes after surgical treatment for retinal detachment compared to their White counterparts. The study suggests higher rates of proliferative vitreoretinopathy (PVR) may contribute to these findings.
A Canadian study reveals that obesity reprograms immune system cells, making them destructive to the eye as it ages. The research sheds light on the molecular mechanism behind AMD and may lead to tailored treatments in the future.