Articles tagged with Eye
Researchers analyzed inner ear anatomy in extinct and living species to understand dinosaur sensory biology and behavior. The studies found clear patterns relating the shape of the semi-circular canal and cochlea to movement ability and hearing high-frequency sound.
University of Rochester researchers developed a novel technology using freeform optics and metasurfaces to deliver high-quality images with socially acceptable optics. The metaform component gathers visible light rays from all directions and redirects them directly into the human eye, achieving a significant improvement in image quality.
A new study by Tokyo Medical and Dental University clinicians reveals that horizontal transmission is responsible for HTLV-1 uveitis, a severe eye inflammation. The patient was treated with corticosteroids, showing promise in managing the condition, but highlighting the need to consider infection route in diagnosis and treatment.
A team of international researchers has shown that the network of nerves connecting eyes to brains evolved at least 450 million years ago in ancient fish, predating animals living on land. This discovery challenges existing theories and has implications for future health research.
A large-scale genetic study has identified 50 new genes associated with human eye color, significantly expanding the current understanding of this complex trait. These findings will help improve diagnosis and treatment of eye diseases such as pigmentary glaucoma and ocular albinism.
A new study found that dry eye disease significantly impacts visual function, daily activities, and work productivity. It also reveals a link between dry eye disease and increased anxiety, depression, arthritis, hearing loss, and irritable bowel disease.
Rapidly rising levels of sight loss are largely due to untreated ocular conditions, affecting hundreds of millions globally. A new study highlights the need for standard terminology and robust definitions to measure non-visually impairing eye diseases.
Researchers at the University of Birmingham have developed a method to measure intraocular pressure using soundwaves, which could help detect glaucoma earlier. This non-invasive technique uses a smartphone to scan people's eyes, prompting early diagnosis and treatment to prevent blindness.
Researchers analyzed genes in over 34,000 people with glaucoma and found 44 new genetic variants that may lead to new treatment targets. The study's findings aim to improve screening and diagnosis of glaucoma, as well as develop new treatments for this incurable eye disease.
A new commission report calls for eye care to be included in mainstream health services and development policies to achieve Universal Health Coverage and the 2030 SDGs. Improving eye health can have immediate benefits for individuals and nations, including economic gains of $AUD 530 billion a year.
Researchers at UIC aim to develop an antibody-based eye drop to treat dry eye and ocular surface disease caused by inflammatory and immune system disorders. The new treatment, which uses pooled human immune globulins, is expected to be particularly helpful for patients with immune-related dry eyes.
A case of accidental hand sanitizer contact with the eyes resulted in severe ocular injury in one child. The authors describe two cases of such accidents and highlight the importance of proper hand hygiene practices to prevent such incidents.
A recent study assessed the increase in pediatric cases of alcohol-based hand sanitizer eye exposure during the COVID-19 pandemic. The severity and management of ocular lesions were also evaluated.
A new device, ECaBox, will resuscitate eyes from deceased body donors for clinical research purposes. The device will maintain the eye's temperature and pH levels while providing cells with oxygen and nutrients.
Children who undergo cataract surgery as infants have a 22% risk of developing glaucoma by age 10. Lifelong monitoring is crucial to preventing vision loss due to increased eye pressure and optic nerve damage.
A new study uses next-generation sequencing to analyze genetic diversity of fish eye parasites, revealing complex life cycles and diverse habitats. The research also sheds light on the impact of parasites on fish behavior and immunity.
Researchers at Texas A\(M University have created a therapeutic derived from turmeric that reduces ocular inflammation in dogs with uveitis. The treatment bypasses intestinal and ocular barriers for improved absorption, offering a safer alternative to current medications.
The researchers created a lightweight eye mask called Chesma with two kinds of fabric electrodes to track electro-oculography and cardiac signals. The mask can be integrated into various garments and tested for performance after multiple washings.
Researchers identified a gene responsible for eye loss in cavefish, revealing its connection to a human vascular disease. The gene, cystathionine beta-synthase 'a' (cbsa), prevents blood flow to developing eyes, leading to withered eyes in blind fish.
Ocular scientists provide evidence-based guidance for practitioners and patients on safe use of contact lenses during COVID-19 pandemic, emphasizing importance of good hand hygiene, proper lens care, and temporary lens removal when ill. Experts also debunk rumors about glasses/spectacles providing protection against COVID-19.
Researchers at the University of Tyumen developed biomimetic optics that mimic human eye functions, offering excellent adaptation to changing conditions and miniature sizes. The new optics has advantages over traditional technologies, enabling wider range of functional characteristics.
Researchers at Flinders University have developed a new method to measure myopia, using OCT to identify irregularities in the eye's shape. This approach could lead to more effective monitoring and prevention of vision loss, as high myopia is expected to become the leading cause of blindness worldwide by 2050.
Researchers at the University of South Florida have discovered a novel feedback pathway from the brain to the eye that modulates eye pressure. This breakthrough finding may lead to new treatments for glaucoma by exploiting the modulatory mechanisms of the drainage control system.
HDR images offer a wider dynamic range of luminance, simulating human eye adaptation to various lighting conditions. A new method stabilizes the camera response function while coupling colour channels, producing artefact-free results.
A 370-million-year-old tetrapod, Parmastega aelidae, had a skull resembling a crocodile with eyes above its head, indicating it could keep an eye on prey while swimming. It used slender needle-like teeth and elastic jaws to snatch prey before crushing it with massive fangs.
Researchers developed a new non-invasive optical imaging system to diagnose and treat dry eye disease. The Tear Film Imager images layers of the tear film with speed and precision, providing nanometer-level insight into subtle changes in each layer.
A team of researchers is developing a data-driven computer model to diagnose and treat strabismus, a prevalent condition affecting 18 million people in the US. The model will use clinical information from MRI scans, surgical procedures, and patient outcomes to improve treatment options.
New optical security features use a two-piece metamaterial system to create difficult-to-replicate optical phenomena, making it harder to counterfeit money or intercept secure information. The approach offers improved forgery protection and can be used for various applications, including banknotes and identification cards.
Scleral pigmentation plays a role in eye morphology across great apes, with varying levels of contrast between irises and sclerae among species. The study suggests that some nonhuman great apes may use gaze as a social cue, similar to humans.
Scientists are working on a new method to detect glaucoma by analyzing the protein profile in eye fluid. They compare this profile with clinical data, including images of optic nerve damage, to identify a 'proteomic signature' for glaucoma. The goal is to develop a reliable diagnostic tool and monitor patients' progress.
Researchers found retinal vascular tortuosity, a microvascular abnormality, is associated with PAH and pulmonary vascular remodeling. The study suggests the eye may provide valuable information about pulmonary circulation health.
A small study published in the British Journal of Sports Medicine suggests that doubles badminton players are at greatest risk of potentially serious eye injuries during matches. Protective eye wear is highly recommended for all competitors to prevent such injuries, which can cause permanent vision loss and even blindness.
Researchers detected vascular changes in the human eye using an infrared camera, providing a new potential biomarker for identifying individuals at high risk of progressing to Alzheimer's. The study aims to explore the correlation between retinal capillaries and other brain biomarkers.
Researchers at Vanderbilt University have made significant findings on how the brain processes visual information from both eyes. Contrary to previous Nobel Prize-winning research, they discovered that the brain combines dual signals in milliseconds, not later stages of processing.
A new study published in the Journal of Glaucoma found that mindful meditation practice significantly lowers intraocular pressure, reducing stress-related biomarkers and improving quality-of-life. Meditation also positively influences other indicators, such as reduced cortisol levels and increased brain-derived neurotrophic factors.
A study by Massachusetts Eye and Ear found that astronauts or pilots with higher vestibular thresholds are more likely to become disoriented during flight. The researchers also found a strong correlation between lower vestibular thresholds and improved manual control performance.
The American Academy of Ophthalmology is honoring distinguished ophthalmologists like Steven T. Charles, M.D., for their scientific contributions to preventing blindness and restoring sight worldwide. Other notable recipients include David Heiden, M.D., and William L. White, M.D., who have made significant impacts through humanitarian ...
Researchers have developed a new approach to see-through displays for augmented reality smart glasses. The design projects images onto the eye using photons and holographic optical elements to form letters and words.
A study published in JAMA Ophthalmology found that US pediatric eye injuries decreased by 26.1% from 2006 to 2014. Most of these injuries had a low risk of causing permanent vision loss. In contrast, sports and household-related injuries increased, while motor vehicle crashes, gun-related incidents, and chemical burns declined.
New study finds that eye dominance and visual acuity are governed by separate areas of the brain, making it possible to correct one without affecting the other. Researchers can now address acuity directly, bypassing normal eye dominance restoration.
A new study led by the NIH identified roles for over two dozen genes shared with humans, many linked to human eye disorders, in causing cavefish blindness. Epigenetic regulation mechanisms have been found to play a key role in this process.
Researchers found guppies rapidly turn their eyes black to warn rivals, making their eyes more conspicuous as an honest signal of aggression. This behavior is seen in larger guppies dominating smaller ones, but not the other way around.
Cavefish have higher levels of DNA methyltransferase DNMT3B in developing eyes, leading to epigenetic suppression of eye development genes. This process differs from genetic mutations, which are permanent changes in the DNA code.
The study found that pupils dilate before reported inspiration, predicting subsequent inspiration. This discovery may lead to externally monitoring and controlling memory retrieval in the future.
Researchers at Michigan Medicine's Kellogg Eye Center report cases of uveal effusions and eye inflammation caused by immunotherapy treatments. Ophthalmologists emphasize the importance of referring patients with eye problems to an ophthalmologist, while oncologists should ask about medications that may be causing symptoms.
Tropical Cyclone Iris' remnants linger in the Coral Sea as NASA's Suomi NPP satellite captures visible images of the low-pressure area. The bulk of precipitation is located in the southern and eastern quadrants due to northwesterly vertical wind shear.
Researchers developed a holographic heads-up display that increases the size of the displayed image, allowing drivers and pilots to see information without shifting their gaze. The technology uses holographic optical elements to redirect light and create a larger eye box, making it easier to view critical data.
Researchers have identified two distinct types of vision-degrading glaucoma and pinpointed key genes associated with the condition. The study also suggests that exercise can help reduce eye pressure and provides a potential new point of intervention for treating glaucoma.
Harvard researchers create an adaptive metalens that controls focus, astigmatism and image shift in real-time, like the human eye. The device is made possible by combining metalens technology with artificial muscle technology, enabling dynamic aberration correction for various applications.
A study found that only one-third of individuals with retinal infarction underwent basic testing, and fewer than one in 10 were seen by a neurologist. This highlights the importance of expediting stroke evaluation testing for those who have experienced a retinal infarction.
A recent study published in Scientific Reports suggests that the eye is not as immune as previously thought, with some components being accessible to immune cells. This discovery has implications for wound healing and changes in vision such as cataracts, and may change the way we think about eye disorders.
Scientists at USC have developed a temperature-sensitive gel that can seal eye injuries, allowing for faster treatment and reducing the risk of complications. The reversible seal can be easily removed with cool water, making it a promising solution for treating ocular injuries on the battlefield.
A new study suggests that augmented-reality technology can improve ocular balance in individuals with amblyopia, a condition where signals between the brain and one eye go awry. The technology, which delivers altered but complementary video to each eye in real time, forced participants to make use of both eyes cooperatively.
Researchers found that blue whales tend to be 'right-handed' when feeding, rolling about 90 degrees to the right side during most lunges. However, they roll to the left when approaching from below to target patches of prey, allowing for more efficient feeding.
A new microdose delivery system achieved comparable treatment effect to conventional eyedrops while delivering less than four times the amount of drug, reducing eye exposure by 75-80%. Microdosing reduced side effects, leading to gentler treatment for patients with glaucoma and other eye diseases.
A study of firearms-related eye trauma in the US found significant racial disparities, with African Americans making up 35% of patients and suffering greater odds of being assaulted on the street. Whites were more likely to suffer self-inflicted injuries at home, while most common injury locations were the home and the street
A Wayne State research team is developing a novel approach to treat bacterial endophthalmitis with Resolvin D1, which has shown promise in reducing inflammation and preventing tissue damage. The study aims to identify new anti-inflammatory therapeutics for the prevention and treatment of blinding ocular infections.
Researchers at IBS have identified a new mechanism involved in glaucoma development and progression, and found a potential therapeutic option to treat primary open-angle glaucoma. The study highlights the critical role of the angiopoietin-Tie2 system in Schlemm's canal functionality.
Researchers developed PupilScreen, a smartphone app that detects changes in pupil's response to light using AI-powered deep learning tools, promising improved diagnosis accuracy for concussion and TBI. The app can be used by coaches, parents, medics, and others on the sidelines of sports games or in emergency situations.
Researchers found that batters follow different visual strategies when swinging versus taking a pitch, with more eye movement when not swinging and larger head movements when swinging. The study provides new insights into batting strategy at the plate.