Research by Queensland University of Technology found that children who spend more time outdoors have slower eye growth and reduced myopia progression. The study recommends at least two hours of outdoor light exposure per day to help prevent myopia from developing and progressing.
New materials and technologies enable innovative applications for contact lenses, including slowing nearsightedness progression, drug delivery and disease monitoring. Researchers propose solutions to clinical challenges in these emerging areas, going beyond traditional vision correction.
Researchers at Cardiff University have successfully transplanted human stem cells into rabbits with corneal blindness, repairing the front of the eye and restoring vision. The study demonstrates the generation of multiple eye tissues, including the lens, cornea, and conjunctiva, from human induced pluripotent stem cells.
A global study estimates that 101.2 million people suffer from moderate to severe visual impairment due to uncorrected refractive error (URE), while seven million are blind. The study, published in Optometry and Vision Science, suggests that providing access to affordable glasses could improve the burden of vision loss.
A study published in Optometry and Vision Science found that children with severe astigmatism can improve their reading fluency after wearing glasses, with effects most apparent among older children reading smaller text. The study supports the recommendation for full-time spectacle wear in astigmatic students.
A new study finds that moderately farsighted preschoolers and kindergarten students perform worse in early literacy than children with normal vision. The researchers hope this research is an important step in clearing up the uncertainty surrounding what to do with these kids.
A multi-center clinical study funded by the National Eye Institute has shown that uncorrected farsightedness in preschool children is associated with significantly worse performance on a test of early literacy. Children with moderate hyperopia did poorly on the Test of Preschool Early Literacy, especially in print knowledge domain.
Researchers studied eye structures in adults with varying vision prescriptions and age, finding significant differences. The study's results suggest that 'customized' intraocular lenses could improve accommodating IOLs' effectiveness in correcting presbyopia.
Pat Segu, a clinical associate professor at the University of Houston College of Optometry, received the prestigious Distinguished Service Award from the Vision Care Section of the American Public Health Association. Her work in establishing clinics, programs, and associations has improved access to eye care for underserved communities.
Research found that prenatal exposure to marijuana improves a child's ability to track moving objects, while alcohol has a negative effect on visual processing. The study suggests that health professionals can counteract the negative effects of drug use in pregnancy.
A study found that patients with glaucoma can adapt their visual scanning behavior to compensate for impaired vision and pass a standard driving test. By making more frequent head and eye movements, they can improve traffic safety and potentially be granted a driver's license in some countries.
A study published in Optometry and Vision Science found that patients with age-related macular degeneration can accurately complete touch screen tasks, but their performance is slowed due to difficulties exploring the interface. The research suggests adapting touch screen applications to aid individuals with AMD.
The September special issue of Optometry and Vision Science presents significant strides in managing patients with dry eye symptoms. Key findings include new treatments such as omega-3 supplements and heat therapy, as well as emerging approaches to diagnosis and management.
A study of 214 species finds that vertical slits indicate ambush predators, while horizontally elongated pupils suggest grazing prey. Researchers believe this shapes allows for optimal vision in dim light and panoramic view.
Earl L. Smith III, OD, was inducted into the National Optometry Hall of Fame for his long-lasting impact on the optometric profession through his academic and administrative work at UH College of Optometry. He has made significant contributions to vision science research and education.
A simple method tests visual acuity at lower light levels, providing reliable and repeatable measurements of twilight vision. The study's findings suggest that the light level itself is the major factor explaining the decrease in visual acuity.
A study of 4,500 US children over 20 years identifies a single test that can predict which kids will become nearsighted by the eighth grade: a measure of their current refractive error. The research counters the notion that near work causes myopia and confirms that eight risk factors increase the likelihood of developing myopia.
Researchers found that particles from eyeliner can contaminate the eye's tear film, leading to discomfort and potentially irritating sensitive or dry eyes. The study suggests people who wear contact lenses are more likely to notice problems if eyeliner is stuck to their lenses.
A Kaiser Permanente study found that expanding blood pressure screenings to non-primary care settings can help identify more patients with high blood pressure and improve management. The study reported that patients identified with hypertension in non-primary care settings were more likely to be older, male, and non-Hispanic white.
A team of UH College of Optometry researchers aims to improve the vision of individuals with Down syndrome using computer-simulated prescribing strategies. The study, funded by the National Eye Institute, hopes to demonstrate improved visual acuity with new prescription methods that consider optical distortions in the eyes.
A study found that contact lens wearers who don't follow proper hygiene habits have increased bacterial contamination of their cases. Washing hands with soap, letting cases air-dry, and using matching disinfecting solutions from the same manufacturer are key steps to reducing contamination.
A new study finds that chronic hypertension increases a person's susceptibility to glaucoma by damaging blood vessels in the eye. This damage compromises the eye's capacity to cope with changes in blood flow, making hypertension a risk factor for the potentially blinding eye disorder.
The National Expert Panel recommends annual vision health screening between age 36 months and before 72 months, with specific tests and training guidelines. The screenings aim to detect refractive errors, amblyopia, and strabismus, ensuring prompt diagnosis and referral to eye care professionals.
A research collaboration involving six universities worldwide aims to assess diabetic neuropathy using specialized eye tests. The project will pool data from over 600 patients worldwide to help answer key questions about the performance of these new eye tests.
A new study found that contact lens discomfort is associated with degradation of the lipid layer in the tear film. Applying a liposomal eyelid spray increased stability of the tear film and improved dry eye symptoms, suggesting potential benefits for patients with contact lens discomfort.
Researchers at Ohio State University created a video game training program that improves vision in people with lazy eyes and poor depth perception. The 'push-pull' method, using games like Pac-Man, stimulates both eyes equally to counter the common use of eye patches on dominant eyes.
A study published in Optometry and Vision Science found that preschoolers' ability to change focus is lower than subjective tests suggest. The test results showed a significant difference between the objective and subjective measures of accommodation amplitude in young children, with the former being about half of the latter.
Researchers warn that sildenafil, used to treat erectile dysfunction, can cause visual responses in people with a common mutation for eye disease. Studies on mice found heightened effects and signs of cell death in those with the mutation, raising concerns about long-term vision impact.
Wavefront analysis is being intensively studied as a new approach to measuring and correcting visual abnormalities. The technique, developed by astronomers, shows promise for assessing and treating higher-order visual aberrations in eyes.
Researchers at the University of Georgia have found that people with more yellow pigment in their eyes can see better in hazy conditions. The study suggests that eating leafy green vegetables can help maintain healthy vision.
Research suggests that individuals with higher levels of yellow pigment in the eye may be better able to see distant objects in hazy conditions. This is due to the yellow pigment filtering out short-wavelength light, also known as blue haze, and allowing for improved visibility.
Researchers at UC Berkeley are developing a vision-correcting display that uses computation to compensate for individual visual impairments. The technology has the potential to transform lives of people with high-order aberrations and presbyopia, enabling them to use smartphones, tablets, and computers without corrective lenses.
A recent study by the University of Waterloo found that most prescription labels in Canada do not follow recommended guidelines for legibility. The researchers suggest that improving label appearance can be achieved without new technologies or larger labels, and recommends a patient-centered approach to labelling standards.
The article discusses the need for practical models of low vision to predict real-world object visibility, as well as research on increasing reading accessibility through electronic readers. Dr. Legge's work emphasizes the importance of interdisciplinary collaboration between researchers, developers, and design professionals.
The NSU College of Optometry will conduct the Convergence Insufficiency Treatment Trial—Attention and Reading Trial (CITT-ART), a national multi-center clinical trial investigating the impact of convergence insufficiency on attention and reading performance in children. The study aims to develop new therapies for children with attentio...
The University of Houston is participating in a $7.5 million NIH clinical trial to slow the progression of nearsightedness in children using commercially available soft bifocal contact lenses. The study aims to determine whether these lenses can slow eye growth and subsequent myopia.
A study from the University of Waterloo found a correlation between abnormal binocular vision, general health, and antidepressant use in older adults. Binocular vision disorders affect depth perception and may increase fall risk, affecting up to 38% of those over 80 years old.
A new study reports that antimicrobial peptide-coated contact lenses are safe and effective in reducing the risk of contact lens-related infections. The study found no signs of toxic effects or adverse reactions, making melimine-coated lenses a promising alternative to traditional antibiotics.
Researchers at Indiana University have developed a new technique that can detect microscopic changes in the retina caused by diabetes, which may indicate potential sight-threatening complications. The instrument uses adaptive optics to provide highly magnified retinal images and identify subtle changes in blood vessels.
The study found that nearly 4 million Latinas were never told they were at risk for diabetes, highlighting the need for effective and culturally sensitive follow-up care and case management. Alternate sites like optometry venues, pharmacies, or places of worship could increase access to education and self-management programs.
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.
Brain researchers discovered how Galileo's visual illusion works in the mind's eye, revealing that it occurs due to non-linear and exaggerated responses to light stimuli. This effect is responsible for various phenomena, such as why certain objects appear larger or smaller based on their dark parts in bright daylight.
Researchers found that baseball players move their heads to track pitches, making only slight adjustments with their eyes until late in the pitch trajectory. This challenges the conventional wisdom that hitters focus primarily on the ball with their eyes.
A study published in Optometry and Vision Science reports a high rate of anisometropia in older adults, with 32% meeting the definition of differing prescription components. The prevalence of anisometropia increased significantly with age, particularly among those over 75 years old.
Researchers discovered that snakes can optimize their vision by controlling blood flow in their eyes when perceiving threats. The coachwhip snake's visual blood flow patterns change depending on its environment, allowing for improved visual clarity in times of need.
A recent study published in Optometry and Vision Science highlights the alarming increase in myopia incidence, primarily influenced by environmental factors. Multifocal contact lenses have shown promise in reducing myopia progression in children, with results persisting through at least two years.
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 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.
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 found that using well-designed tools to assess patient-reported outcomes can lead to new insights for improving cataract care. Patient-reported measures were affected by clinical measures such as visual acuity and ocular comorbidity, but also by factors related to better or worse patient-reported outcomes.
Researchers developed a new open-source platform to analyze and visualize visual fields, enabling transparent collaboration among independent labs. The platform contains analytical and visualization tools, including methods for glaucoma detection, and can be used for experimentation and research.
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.
A study by Dr. Susana T.L. Chung reveals that the visual system of older adults with central vision loss is still plastic and can be modified through experiences. Perceptual learning techniques targeting the preferred retinal location led to an average 50 percent increase in reading speed, improving daily functioning.
A study published in Optometry and Vision Science found that changing lens type or lens care product can bring relief to about half of patients experiencing discomfort with contact lenses. The study ranked different combinations, with one showing significant improvement in ocular comfort and symptoms.
A new study found that wearing OK contact lenses every night can restore age-related loss of near vision, allowing patients to read and perform up-close tasks without bifocals or reading glasses. The technique is safe and reversible, with the cornea returning to its previous shape after stopping lens wear.
Three University of Houston optometry educators, all UHCO graduates, received top honors from the Texas Optometric Association. Kevin Gee assumed TOA presidency, Nancy George received the William D. Pittman Leadership Award, and Pat Segu was awarded Educator of the Year.
Researchers found that OK lenses primarily reshape the front of the cornea to correct myopia. After a 14-day treatment period, the changes were significant and vision improved substantially.
A study published in Optometry and Vision Science found high rates of vision problems in both military and civilian patients with TBI, including difficulty reading and light sensitivity. Comprehensive eye examinations are recommended following even mild traumatic brain injury.
A new study identified two neighboring areas of the cortex as processing different types of visual information independently. The researchers used magnetic fields to disrupt neural activity, revealing that one area plays a causal role in processing orientation, while another underpins shape recognition based on curvature differences.
A study by Professor Jocelyn Faubert found that professional athletes, including soccer players and hockey players, performed better on a brain test than non-athlete university students. The researchers used the Neurotracker machine to evaluate skills such as tracking fast-moving objects and perceiving depth.