Articles tagged with Eye
Researchers have identified new properties in microbes causing conjunctivitis, enabling the bacterium to stick to and damage the eye surface. The discovery may lead to the development of a new vaccine to prevent this infection.
A study of 4,379 participants found that having AMD in one eye increases the risk of developing AMD in the other eye, with more severe disease progressing faster. The researchers tracked AMD severity in both eyes over a 20-year period and found a strong correlation between the two eyes.
A new device called a punctum plug has been shown to be effective at reducing pain and inflammation following cataract surgery. The implant delivers the correct amount of postoperative medication, potentially solving issues of poor patient compliance with eye drops.
The University of Pittsburgh will lead a multidisciplinary consortium to explore strategies for whole-eye transplantation, with the goal of restoring vision in patients with traumatic or degenerative eye damage. The project aims to overcome challenges related to immune rejection and optic nerve regeneration.
Researchers at Northwestern University identify a critical chemical signaling pathway for the healthy functioning of Schlemm's canal, a key factor in developing glaucoma. They are now developing an eye drop that activates regrowth of the clogged vessel to lower pressure and restore normal drainage.
A new study suggests that spending time outdoors may contribute to the development of exfoliation syndrome in the eyes. The research found a link between UV radiation and the condition, with people living at higher latitudes and spending more time outside having a greater risk of developing XFS.
Researchers found a link between residential geography, time spent in the sun, and XFS risk. Wearing sunglasses for summer hours reduced odds of XFS by 2%.
The study found that gram-positive bacteria, including staph and strep infections, accounted for 95 percent of endophthalmitis cases. The findings suggest better treatment with targeted antibiotics, but also highlight increasing resistance to certain antibiotics.
Researchers have discovered that acute glaucoma is an inflammatory disease caused by high eye pressure, leading to vision loss. The study found that a rapid increase in eye pressure triggers an immune response that damages retinal cells.
A clinical trial shows that integrated low vision and mental health treatment can reduce depression in AMD patients by half. The approach combines behavior activation therapy with low vision occupational therapy, leading to improved functional vision and mood.
A recent study by UTSA researchers reveals that the shock wave from explosive blasts can cause significant eye damage, leading to partial or total blindness. The optic nerve is particularly vulnerable to injury, even at low pressures, and may be a contributing factor to visual deficits associated with traumatic brain injuries.
Researchers found that omega-3 fatty acids can regulate choroidal angiogenesis and vascular leakage by modulating micro-environmental immune cell recruitment. This mechanism suggests a unique pathway for disease resolution and potential therapeutic applications in age-related macular degeneration.
A new study published in TVST found that glaucoma is controlled by the brain, not the eye. The research shows that as previously disabled optic nerve axons recover, the remaining areas of permanent visual loss coincide with the areas that can still see in the other eye, forming a jigsaw puzzle-like pattern.
Two Harvard Medical School faculty members, Patricia D'Amore and Joan Miller, have been recognized with the 2015 Proctor Medal and Mildred Weisenfeld Award for Excellence in Ophthalmology, respectively. Their groundbreaking research on vascular growth and development has led to significant advancements in anti-angiogenic therapies, imp...
Researchers developed a thermoresponsive adhesive that warms up and seals wounds, then reverts to its non-adhesive form when cooled. The technology could prevent retinal detachment and vision loss in military-related eye injuries.
Researchers explore new approaches to managing intraocular fluid buildup in the trabecular meshwork, a key structure controlling eye pressure. The development of next-generation glaucoma therapies aims to improve treatment options for those at risk of glaucoma.
A study published in the journal Ophthalmology found that physically active individuals and occasional drinkers have a reduced risk of developing visual impairment. The research suggests that modifiable lifestyle behaviors may alter the odds of developing sight loss not correctable with glasses or contact lenses.
Complex NHS sight tests are leading to unnecessary referrals and resource waste due to clinically insignificant abnormalities. Opticians refer patients to medical practitioners if abnormalities are found, but many of these referrals result in false positives and anxiety for patients.
A recent study published in Optometry and Vision Science reveals that nearly 40% of older adults experience color vision abnormalities. The most common type is the blue-yellow error, which can significantly impact daily functioning. Researchers attribute these changes to aging-related eye diseases and lens yellowing.
A special issue of IOVS addresses the aging eye, focusing on unmet needs and accelerating clinical care. The issue features new research on genetics, biology, and prevention/treatment of age-related diseases such as cataracts and macular degeneration.
New research by Dr Rob Jenkins and Christie Kerr uses high-resolution passport-style photographs to recover faces of bystanders from reflections in the eyes of photographic subjects. The recovered images can be identified accurately, even at low resolution, highlighting human face recognition's robustness.
Researchers identify azithromycin as a potential therapy for meibomian gland dysfunction, leading to improved treatment options for dry eye disease. The study suggests that topical azithromycin could directly stimulate the function of human meibomian gland epithelial cells.
Researchers at UBC-VCH have developed a potential cure for aniridia, a rare eye disease affecting 5,000 people in North America. They formulated the drug Ataluren into eye drops and found it restored normal vision in mice with the condition.
Researchers are exploring methods to monitor and understand intracranial pressure through the ear, eye, and head. These non-invasive techniques aim to provide accurate and safer ways to determine the correlation between intracranial pressure and vision impairment.
A study found that residents of major US cities with high levels of air pollution are more likely to be diagnosed with dry eye syndrome. Environmental manipulations such as maintaining humidity and using air filters can help manage the condition.
Researchers found that snakes reduce blood flow in their eyes by prolonging periods of contraction, allowing for better vision. This adaptation is thought to be advantageous in threatening situations.
A global consensus has been reached on contact lens discomfort (CLD), with the Tear Film & Ocular Surface Society (TFOS) workshop report outlining key factors contributing to its generation. The findings suggest that CLD affects up to half of all contact lens wearers and highlight the need for innovative research in this field.
A study published in Nature Communications found that brief, reversible hearing loss during childhood can disrupt the processing of sound in the brain, leading to persistent hearing deficits. Researchers identified two critical periods after hearing onset that regulate how sounds from each ear are fused into a coherent representation.
A study found that motion-generated optic flow information compensates for the lack of image details and enables effective event perception. Participants correctly identified events in nearly 90% of attempts when viewing moving images, compared to less than 30% when viewing blurred static images.
A Saint Louis University researcher found that a specific eye muscle in pond turtles adapts to compensate for obstructed vision when their head is retracted into their shell. The study revealed unique characteristics of the turtle's eye movements, which differ from other animals with lateral eyes.
A new mouse model suggests that overexpressing the Isl1 gene can protect hair cells from degeneration and promote survival after loud noise exposure. This finding has implications for treating age-related and noise-induced hearing loss in humans.
Eye care professionals are adopting wavefront optics to correct subtle visual issues and monitor eye health. The technique, inspired by astronomy, offers new tools for assessing and correcting higher-order aberrations in the eye.
A study in mice reveals an essential brain circuit that helps dictate how the eyes connect to the brain, which could lead to new treatments for amblyopia. The research found that manipulating a specific brain circuit can prevent ocular dominance in young mice and induce it in older mice beyond the critical period.
A study identifies three advanced optical measures that predict faster age-related declines in visual acuity, including wavefront error and lens clouding. These metrics may help detect patients at risk before their vision loss occurs.
Researchers found that prostaglandin analogues (PGAs) can cause upper and lower eyelid drooping, hollowing of the inferior periorbital fat pads, and levator muscle dysfunction in glaucoma patients. The study suggests reevaluating PGA use for new patients to prevent vision loss.
A new study by Stowers Institute for Medical Research reveals that Notch2, a Notch family protein, shapes an eye structure known as the ciliary body by ensuring BMP signals remain loud and clear. The findings provide crucial insights into how excessive pressure is a risk factor for glaucoma.
Two studies suggest that outdoor recess time can reduce the risk of nearsightedness in children. A Taiwanese study found that mandatory outdoor play reduced nearsightedness rates, while a Danish study showed a correlation between daylight exposure and slower eye growth.
Researchers found that topical anakinra significantly reduced dry eye symptoms, eliminating corneal staining and improving signs of ocular surface disease. The treatment was well-tolerated and effective in reducing dry eye symptoms six times more than the current standard treatment.
A systems biology approach predicts the ocular tropism of a newly identified human adenovirus based on genomic and bioinformatics analysis. The study identifies a unique deletion in the viral capsid, suggesting potential for severe ocular infection.
Researchers found that Ranibizumab reduced the bioactivity of vitreous from patients and experimental animals with PVR, protecting rabbits from developing this disease. The study suggests a novel prophylactic approach to neutralize VEGF-A for managing diseases.
Researchers at Hebrew University have found that people can read and solve complex mathematical problems without being consciously aware of them. Using a technique called Continuous Flash Suppression (CFS), the team showed that participants could complete arithmetic tasks more quickly when they were unconsciously presented with equations.
Researchers have developed a new artificial lens that mimics the natural lens of the human eye, enabling incremental refraction control. This breakthrough could improve performance in implantable lenses and consumer vision products, as well as enhance ground and aerial surveillance technology.
A new study refutes the notion that frequent headaches in children are often caused by vision or eye problems. In fact, researchers found no significant correlation between headaches and the need for vision correction. Most children's headaches improved on their own over time, regardless of whether they received new glasses.
Two studies highlight the strong indicators of vision problems in veterans with traumatic brain injury and stress disorder, including chronic vision disorders and dry eye syndrome. The studies found that these conditions can persist for years after the initial injury and may be more prevalent than previously recognized.
A new 'smart' surgical tool combines advanced technology with human hand precision to minimize surgical accidents. The device uses an optical fiber sensor to compensate for hand tremors, allowing for accurate and precise movements during delicate procedures.
Researchers at Whitehead Institute have published a comprehensive catalog of genes active in planarian eyes, shedding light on eye development and regeneration. The study identifies key genes involved in eye biology, including ovo, which plays a critical role in eye formation and regeneration.
A study published in JAMA found that older Medicare patients who underwent cataract surgery had a 16% lower odds of hip fracture compared to those with untreated cataracts. The researchers suggested that cataract surgery may be associated with lower odds of subsequent fracture in the elderly population.
The Massachusetts Eye and Ear Infirmary has been awarded a $110,000 grant from Research to Prevent Blindness to conduct research on the causes, treatment and prevention of blinding diseases. The grant will be directed by Dr. Joan Miller, who leads the Mass. Eye and Ear/Mass General Department of Ophthalmology.
Researchers developed an ocular pulse amplitude test to detect carotid artery stenosis, a known stroke risk factor. The test could be performed by ophthalmologists during routine exams and may help prevent strokes.
New stitching technique improves measurement of large aspheres in optics industry. Wavefront sensing technology enhances eye health diagnosis and treatment in medical industry.
A recent study found that caffeine can significantly increase tear production in people with dry eye syndrome. The research suggests that individuals who are sensitive to caffeine may benefit from using it as a treatment option, under the guidance of a healthcare professional.
Glaucoma is now viewed as a neurologic disorder causing nerve cell degeneration and death, similar to Parkinson's disease and Alzheimer's. Researchers are exploring treatment advances, including RGC-targeted medications and electrical stimulation, that may ultimately restore vision.
A new study by San Francisco State University researcher Sybil Yang found that diners do not linger noticeably longer over any particular location on the menu, contradicting decades of conventional wisdom. Instead, they read menus sequentially like a book, moving from left to right and down the pages.
Researchers at Mass. Eye and Ear will develop an algorithm to evaluate anatomical changes in the eye associated with certain glaucoma treatments. The fellowship will support the work of Mamta Shah under the mentorship of Drs. Louis Pasquale and Suzanne Freitag.
Researchers at Mass Eye and Ear aim to understand the origins of eye allergies, a major health problem in the US. They hope to uncover more effective targets for treatment, potentially offering new hope for those suffering from ocular surface allergy.
A Tel Aviv University-developed technology uses a hyperspectral camera to analyze the world we live in, detecting contaminants and environmental hazards in real time. The sensor can provide immediate, cost-effective, and accurate monitoring of forests, urban areas, agricultural lands, harbors, or marinas.
A new analysis of recent eye health studies shows that more time spent outdoors is related to reduced rates of nearsightedness in children and adolescents. Exposure to natural light and looking at distant objects may be key factors.
A clinical trial led by Newcastle University found that the drug idebenone improved vision and perception of color in patients with LHON, a condition causing inherited blindness. In nine out of 36 patients taking idebenone, vision improved to the point where they could read at least one row of letters on a chart.
Scientists discovered a gene linked to angle-closure glaucoma (ACG), a medical emergency that can cause rapid vision loss. The gene's activity is associated with abnormal eye development and increased intraocular pressure.
Researchers found that infants' brains develop the ability to determine light and dark cycles independently of visual stimuli. The study suggests that this innate ability is a hard-wired feature of development, allowing animals to synchronize their circadian rhythms with daily changes in light exposure.