Articles tagged with Ophthalmology
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Researchers found metformin reduces progression of AMD by 37% in people over 55 years, a breakthrough in search for new treatments. The study used pictures from 2,000 eye screenings and adjusted for factors like age, sex, and duration of diabetes.
Researchers used MRI analysis to measure glymphatic system activity, finding changes related to IIH stage and pressure levels. The findings suggest a noninvasive test could diagnose IIH more reliably, improving treatment options for patients with symptoms including headaches and vision loss.
Researchers at Waseda University have developed an integrated smart contact lens that enables real-time intraocular pressure monitoring for early glaucoma diagnosis. The device leverages parity-time symmetry for ultra-sensitive wireless detection, increasing sensitivity by a factor of 183.
A study by Stanford Medicine researchers found that people with colorblindness have a 52% higher mortality rate over 20 years compared to those with normal vision due to delayed diagnosis. The study suggests that missing the early sign of blood in urine can lead to worse outcomes.
A new study estimates that over 1.6 million people in the UK will be living with glaucoma by 2060, with nearly 50% higher prevalence than previous estimates. The researchers call for expanded eye health services and increased awareness campaigns to detect early cases and prevent vision loss.
A new study demonstrates the effectiveness of a widely-used eye injection in managing hypotony, a rare condition characterized by abnormally low eye pressure. The treatment, which involves injecting HPMC gel, has shown promising results in restoring vision and increasing eye pressure.
Researchers identified changes in RNA molecules involved in cell's splicing machinery, causing retinitis pigmentosa in ~30-40% of patients with genetic disorder. Variants in five non-coding RNA genes were found to be responsible for the disease, offering a new diagnostic pathway for families worldwide.
A novel clinical trial is exploring if a stem cell-derived retinal implant can not only stop the progression of dry age-related macular degeneration but also improve patients' vision. The implant uses lab-engineered RPE cells to replace damaged cells in the retina, potentially restoring central vision.
NEJM Clinician curates highly relevant clinical insights from over 150 peer-reviewed journals to give physicians clear guidance without the noise. The weekly publication delivers summaries and commentary in a concise, 30-minute read, helping healthcare providers stay informed and confident in their decisions.
Researchers developed a revolutionary AI platform to assess the fairness and accuracy of commercial algorithms in detecting diabetic eye disease. The platform was tested on 1.2 million images from diverse ethnic groups, achieving high accuracy rates compared to human grading.
Optic disc edema progression in spaceflight predicted using optical coherence tomography imaging, suggesting crew members without ODE on day 30 unlikely to develop concern on day 150. This technology offers opportunity for predicting ODE magnitude during longer missions.
A new MIT study reveals that temporarily anesthetizing the retina of the amblyopic eye can restore its neural connections and improve vision in adulthood. The treatment, which has been shown to be effective in infancy and early childhood, may have promising clinical potential for adults with amblyopia.
The INSIGHT Health Data Research Hub for Eye Health and Oculomics is expanding UK eye health research by linking national data resources, supporting research and improving patient care. The hub will on-board NHS sites, broaden national data linkages, and integrate genetic data to accelerate oculomics research.
A new tool, WatDAT, measures vision equally precisely in younger toddlers by asking them to point out different shapes at progressively smaller sizes. This test can lead to earlier detection and treatment of vision problems in children under three, such as amblyopia or farsightedness.
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...
Dr. Kathryn Colby, NYU Langone Health's chair of ophthalmology, has received the prestigious Castroviejo Medal for her pioneering work on Fuchs endothelial corneal dystrophy. Her research explores a new surgical procedure to stimulate corneal regeneration.
The study found that 1-year DMEK success rates were high regardless of donor diabetes status. No restrictions on using tissue from donors with diabetes for DMEK are recommended based on the results.
A randomized clinical trial showed that DMEK graft success is comparable between diabetes-positive and non-diabetes donor corneas after 1 year. The study's findings support the use of diabetes-positive donor corneas for endothelial keratoplasty procedures.
A significant increase in pickleball-related ocular injuries has been reported among patients presenting to emergency departments. Eye protection guidelines are not currently in place, highlighting the need for standardized measures to reduce the risk of such injuries.
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.
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.
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.
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.
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.
Patients who had cataract surgery or received a new type of lens for presbyopia correction have excellent vision over near, intermediate, and far distances without glasses. The study found that nearly all patients needed glasses 'none' or 'a little of the time' for distance and intermediate vision.
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.
The Global RETFound initiative aims to develop the world's first globally representative AI foundation model in medicine, addressing health inequalities and AI bias. The project involves a diverse dataset of over 100 million fundus photographs sourced from 65+ countries.
Researchers from Osaka Metropolitan University discovered a novel light-sensing mechanism in reef-building corals, where opsins use chloride ions as counterions to detect visible light. This unique functionality suggests that coral light sensitivity can adjust according to the algae's photosynthetic activity.
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.
Kanishka Thiran Jayasundera has been appointed professor and chair of the Department of Ophthalmology and Vision Science at UC Davis Health. He is recognized for his research on retinal diseases and integrating mental health support with eye care.
Researchers have created an alternative to LASIK surgery by remodeling the cornea through electromechanical reshaping (EMR), a process that uses electric potentials to alter the tissue's pH, making it malleable. The new technique has shown promising results in improving vision and could potentially be reversed or used for other vision ...
A study found no association between semaglutide treatment and diabetic retinopathy, but suggested a potential link to nonarteritic anterior ischemic optic neuropathy. Further research with larger sample sizes is needed to clarify this risk.
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 UCLA team has uncovered new details about the muscle controlling blinking, offering a pathway toward developing blink-assisting prostheses. The orbicularis oculi muscle contracts in complex patterns that vary by action and move the eyelid in more than just a simple up-and-down motion.
A study found that semaglutide and liraglutide use are associated with a higher risk of nonarteritic anterior ischemic optic neuropathy in older patients with type 2 diabetes. The GLP-1 receptor agonists showed varying levels of risk, with liraglutide posing the greatest threat.
A new treatment for corneal scarring is being developed by University of Houston optometry researcher Tarsis G. Ferreira. The treatment uses a natural protein called decorin to block scarring and unwanted blood vessel growth, offering hope for people with injured corneas.
Breakthroughs in treating age-related macular degeneration (AMD) include FDA-approved pegcetacoplan and avacincaptad pegol, targeting the complement system to slow geographic atrophy progression. Anti-VEGF therapies like faricimab also offer extended dosing intervals, reducing injection frequency.
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.
Dry eye disease affects one-third of adults and one-in-five children, causing discomfort and blurred vision. A new app, MyDryEye, has been developed with optimized blinking exercises that have been shown to decrease symptom severity and frequency, with participants experiencing improved symptoms within two weeks.
A review of AI eye imaging devices approved for patient care found significant gaps in evidence, including lack of transparency on training data and limited diversity in clinical evaluations. The study highlights the importance of rigorous, transparent evidence and data to ensure equitable and effective AI-based solutions.
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 use of GLP-1 receptor agonists among diabetes patients is associated with a higher risk of developing incident neovascular age-related macular degeneration. Further research is needed to understand the underlying mechanisms and trade-offs between benefits and risks.
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.
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.
Researchers found that an inexpensive HIV drug can improve vision in patients with diabetic macular edema (DME) more effectively and at a lower cost than existing treatments. The drug, lamivudine, is taken orally and may represent a game-changing option for millions of patients worldwide.
Researchers found that 90% of participants had at least one sign of dry eye disease, with significant progression after one year. The study highlights the need for early detection and advice on managing the condition through simple methods such as taking screen breaks and maintaining a healthy lifestyle.
A University of Cincinnati study explores the link between health literacy and fear surrounding cataract surgery, revealing no correlation between the two. The research emphasizes the importance of open communication and building relationships to overcome fear.
A retrospective study found that using pilocarpine eye drops post-goniotomy surgery improves surgical success and reduces the need for future medications. The study analyzed 532 procedures and showed significant improvements in clinical outcomes for patients who used pilocarpine drops.
Researchers at Brown University suggest that gold nanoparticles could one day be used to restore vision in people with macular degeneration and other retinal disorders. The nanoparticles, when injected into the retina, can stimulate the visual system and restore vision in mice with retinal disorders.
Researchers at TU Graz have developed a new method for detecting nanoplastics in transparent body fluids, including urine, tear fluid, and blood plasma. The method uses optofluidic force induction and Raman spectroscopy to determine the size and chemical composition of particles.
Researchers highlight the potential of AI in diagnosing and treating myopia, detecting risk factors and predicting outcomes. However, challenges such as data quality and patient privacy must be addressed to improve widespread clinical application.
Research by Carolyn Drews-Botsch finds that patching after age 4 does not significantly impact vision, but less-aggressive protocols may be suitable for families with distress. Optotype acuity assessments in 4-year-olds can predict visual acuity at age 10.
A cohort study found semaglutide use is associated with a higher risk of nonarteritic anterior ischemic optic neuropathy in people with diabetes. However, the retrospective design limits the study's ability to establish causality, necessitating further research.
A new study published in JAMA Ophthalmology found that lifestyle changes after COVID-19 were associated with an increase in the prevalence and severity of child astigmatisms. The potential impact of higher degrees of astigmatism may warrant dedicated efforts to elucidate the relationship between environmental and/or lifestyle factors.
A Northwestern University study found significant disparities in glaucoma monitoring, with rural and economically distressed communities facing barriers to care. The study identified strategies to improve access, including expanding tele-ophthalmology services, home monitoring technology, and financial support.