Articles tagged with Eye
A large-scale Medicare study evaluated the outcomes of incisional surgeries used to reduce eye pressure in patients with glaucoma. The study found that while surgeries were effective for most patients, rates of severe outcomes and progression to low vision or blindness were higher for those who received implantation of a glaucoma drain...
Two alternative test methods, the bovine corneal opacity and permeability (BCOP) assay and the isolated chicken eye (ICE) assay, have been accepted for ocular safety testing. These non-animal tests can identify substances that may cause permanent or severe eye damage, reducing animal use in this area.
A new study found strong evidence for a genetic marker on chromosome 5 linked to nearsightedness, which explains 80% of axial length variations. The research also highlights the importance of using vitamins and minerals correctly to prevent AMD vision loss in patients.
Researchers at Michigan Medicine created a device that measures metabolic stress, detecting eye disease before symptoms appear. The instrument provides accurate results in detecting vision loss and characterizing disease progression.
The collaboration between ophthalmology and facial plastic surgery has led to fresh approaches in clinical problems, exemplified by well-designed clinical studies. Articles in this issue of Archives of Ophthalmology showcase new technology and precise measurements during eyelid surgery.
A Cornell University study found that changing the label on a wine can significantly impact diners' perceptions of the wine and their overall meal experience. Diners who were given wine from California rated it higher in quality, enjoyed more of their meal, and were more likely to return to the restaurant.
Researchers developed a one-step test using holograms to diagnose astigmatic error, a key factor in prescribing glasses. The new technique is simpler and faster than traditional methods, which involve multiple lenses and complex processes.
Researchers at Stanford University School of Medicine found a new syndrome occurring in the Chinese population that may not lead to severe vision loss or blindness. The condition affects young and middle-aged individuals with normal eye pressure and nearsightedness.
A study found that Dry Eye Syndrome (DES) significantly impacts daily activities such as reading, computer work, professional work, and watching TV. DES affects an estimated 4.8 million people in the US, with women more likely to be affected than men.
A preliminary study suggests that high-resolution CT scan modeling allows surgeons to custom-design acrylic implants prior to reconstructive surgery for patients with severe defects in their faces and eye cavities. Long-term outcomes showed no significant complications, sustained improvement of facial deformities, and improved function.
UK doctors report a case where a patient's vision was severely damaged by taking prednisolone purchased online for four years. The authors highlight the risks of counterfeit and unregulated medications sold on the internet, which may interact with other treatments or have side effects.
Guyton, a renowned pediatric ophthalmologist, has been awarded the ARVO's Weisenfeld Award for his exceptional work on strabismus and amblyopia. He is also a respected educator and leader in the vision community, with numerous awards and honors to his name.
The US-India collaboration aims to address blindness and low vision, impacting every nation worldwide. The partnership identifies key areas for collaborative research and training, including the Human Ocular Phenome/Genome Evaluation project.
Researchers have discovered that a specific neural stem cell gene, SOX2, is crucial for the normal development of the eye. The study found that disruption of this gene leads to abnormalities in eye formation and microphtalmia, a condition affecting 10% of human cases. The severity of the condition depends on the degree of SOX2 disruption.
A recent Johns Hopkins Medicine study found that a single dose of azithromycin significantly reduces the risk of trichiasis recurring for up to one year after lid surgery. The researchers compared azithromycin to six weeks of topical tetracycline treatment and found that azithromycin resulted in one-third fewer recurrences.
The ARVO/Pfizer Ophthalmics conference aims to improve research and clinical care in areas of ophthalmology related to preventable vision loss and blindness. The meeting will explore topics such as angiogenesis, neovascularization, and vasoproliferation.
A recent study found that even slight squinting while staring at a computer monitor can lead to reduced blinking rates, resulting in dry eye symptoms. Researchers used tiny electrodes to measure muscle activity, revealing a significant decrease in blink rate from 15 blinks per minute to just 4 blinks per minute when participants squinted.
A ferret study found that restoration of binocular vision began in as little as 30 minutes and improved significantly within four hours. The researchers discovered that blocking protein synthesis did not affect recovery, suggesting preserved basic visual wiring during deprivation.
A new study found that radiation therapy can effectively control primary tumors and spare vision in patients with uveal melanoma. The procedure involves plaque radiotherapy, which delivers radiation to the eye tumor via a small metal shield containing radioactive seeds.
Researchers explored commercially important ingredients and delivery technologies in a symposium on cosmetic nanotechnology. Novel formulations, such as synthetic nanocarriers that encapsulate Vitamin E, were presented to improve skin and hair care products.
A University of Minnesota researcher reports 14 cases of NAION linked to Viagra use. Patients had arteriosclerotic risk factors and low cup to disk ratios, increasing risk of permanent vision loss.
Researchers at ASU have identified a suite of five molecules called polyenal lipochromes that color parrot plumage red. These pigments are unique to parrots and provide their vibrant colors, challenging previous assumptions about bird coloration.
The American Academy of Ophthalmology published a comprehensive collection of 60 case studies covering diverse ophthalmic topics including sebaceous carcinoma, refractive errors, glaucoma, and more. The studies provide valuable insights into the diagnosis and management of various eye conditions.
Archer fish demonstrated remarkable cognitive ability to compensate for complex optical distortions and determine the absolute size of their aerial prey. By extracting underlying laws connecting spatial configuration and apparent size, they can judge target's objective size from underwater views unseen before.
Researchers have identified key genes involved in regulating eye pressure, which could lead to new treatments for glaucoma. The study found that two proteins, matrix Gla protein and perlecan, help maintain normal pressure by keeping the trabecular meshwork soft.
A comprehensive study found that US Latinos have high rates of diabetic retinopathy, open-angle glaucoma, and cataract, with significant disparities in healthcare access. Researchers emphasize the importance of providing culturally tailored programs to detect and manage eye diseases in this population.
The Los Angeles Latino Eye Study investigated the prevalence of open-angle glaucoma and ocular hypertension in Latinos. The study also explored changes in retinal nerve fiber layer thickness after acute primary angle closure. Additionally, researchers examined the impact of cataract on frequency-doubling technology perimetry results.
A study found latanoprost to be safe and well-tolerated in reducing intraocular pressure (IOP) for patients with primary open-angle and exfoliation glaucoma. The researchers also reported a mild incidence of increased iris pigmentation, primarily affecting patients with green-brown or yellow-brown eyes.
A new study published in Archives of Ophthalmology suggests that daily eye drops can significantly reduce the development of primary open-angle glaucoma in African Americans by nearly 50%. The study recommends periodic eye exams starting at age 40 for high-risk individuals.
Women with premature ovarian failure experience higher rates of dry eye due to ocular surface damage, not reduced tear production. Sex hormones play a multifaceted role in maintaining healthy moisture on the eye's surface.
The American Academy of Ophthalmology meeting explored approaches to preventing, treating, and living with macular degeneration. Researchers presented updates on the effect of vitamin and mineral supplementation, surgical approaches, anti-VEGF drugs like Macugen, and visual rehabilitation.
The American Academy of Ophthalmology is honoring Dr. Demorest, Dr. Scott, and Dr. Stambaugh for their significant contributions to ophthalmology. They are recognized for their clinical, educational, and research achievements, as well as their leadership positions in the field.
A case report suggests Munchausen syndrome by proxy may be responsible for unexplained medical conditions in infants, with symptoms including bleeding, seizures, and rash. The condition can be difficult to diagnose due to the perpetrator's cooperative nature, but experts emphasize its potential lethality.
Researchers at St. Jude Children's Hospital have successfully treated four pediatric patients with retinoblastoma using a combination of chemotherapy, radiation therapy, and stem-cell transplantation. The study shows promising results, with two out of four patients surviving for over six years without disease recurrence.
A team of researchers used a computer model to simulate the impact of airbag deployment on pilots wearing night-vision goggles. The study found that minimal distance between the eyes and goggles increased stress on orbital bones, while a protective lens reduced impact force but increased surrounding bone pressure.
Researchers found that model mice with pigment dispersion glaucoma had abnormal immune responses in their eyes, which preceded disease onset. The study suggests that loss of immune privilege may trigger the development of glaucoma.
Tiger's eye was previously thought to be an example of pseudomorphism, but researchers have found that the stone's shimmering appearance is actually caused by the presence of crocidolite fibers. The discovery challenges a long-held theory on the formation of tiger's eye and provides new insights into its structure.
Researchers found that treating people with early-stage glaucoma immediately can delay disease progression and slow vision loss. The study followed 255 patients with early stage glaucoma in at least one eye, finding that treatment led to a slower rate of disease progression.
Researchers found that patients with pre-existing dry eye were more likely to experience severe dry eye after LASIK surgery. The study suggests that proper ocular surface management can help mitigate this risk, but patients with dry eye should be warned about potential persistent symptoms.
Nearly a third of surveyed glaucoma patients reported difficulties with taking multiple medications, citing missed dosing and inadequate waiting periods. Physicians advocate for more patient education and convenient treatments to improve compliance and vision outcomes.
A total of 825 patients with primary open-angle glaucoma or ocular hypertension showed significant improvements in intraocular pressure after switching to XALATAN. The study found that 83% of patients experienced a reduction in IOP due to inadequate control, and 90% of those who switched due to adverse events maintained IOP control.
A study found XALACOM to be more effective than Cosopt in reducing intraocular pressure by 1.00 mmHg, with fewer reported eye pain and irritation. XALACOM was also well-tolerated systemically, with no taste disturbances reported.
A five-year study demonstrated Xalatan's efficacy in managing open-angle glaucoma by reducing intraocular pressure (IOP) sustainably. The treatment was well-tolerated, controlling IOP without surgery in 72% of patients.
Researchers have found that treating inflammation in the trochlea tendon can relieve headache pain associated with migraines. In a study of five women with trochleitis, steroid injections produced relief from ocular pain and associated migraine symptoms within 48 to 72 hours.
Astronomers using the Chandra X-ray Observatory discovered a complex shape of the Cat's Eye Nebula, which is driven by hot gas. The team also found an unexpected X-ray source at the central star, sparking questions about its formation.
The skeleton previously identified as King Philip II has been proven to be one of Alexander's half-brothers, specifically Philip III Arrhidaeus. Researchers used macrophotography and forensic analysis to rule out the original theory, citing normal anatomical features and incorrect reconstruction that led to the mistaken identity.