Astronauts on long missions at the International Space Station can experience changes to their eyes and vision that can last for years. This study included 20 men who on three separate days at NASA's Johnson Space Center in Houston completed exercises while on their back and tilted back head-first (to simulate the effect of exercise in space); 10 of the participants wore swimming goggles.
Eliminating routine but unnecessary procedures before people undergo cataract surgery has the potential to save costs and resources for hospitals serving lower-income patients.
The NASA Twins Study is the most comprehensive integrated multi-omics, molecular, physiological, and behavioral analysis of how the human body responds to space flight to date. Study results were published in the April edition of Science.
Reduced blood capillaries in the back of the eye may be a new, noninvasive way to diagnose early cognitive impairment, the precursor to Alzheimer's disease in which individuals become forgetful, reports a new study. Scientists detected these vascular changes in the human eye noninvasively, with an infrared camera and without the need for dyes or expensive MRI scanners.
Study reveals several features of PDE6 that were previously unseen. Included among them were some very promising regions of PDE6 that resemble fish-hooks and are responsible for controlling PDE activity. By targeting the fish-hook-like region with a new class of PDE inhibitors, drug development companies may be able to eliminate unwanted side effects of certain PDE targeting drugs.
Researchers analyzed health care claims data for older adults (12,330 Medicare beneficiaries and 11,858 with commercial health insurance) to see if vision loss was associated with longer stays and higher readmission rates and costs when patients were hospitalized with common illnesses. The study reports patients with vision loss used more health care resources and had higher costs than those without vision loss.
New research led by scientists at Newcastle University reveals a potential revolutionary way to treat eye injuries and prevent blindness -- by softening the tissue hosting the stem cells which then helps repair wounds, inside the body.
Scientists discovered a light-dependent molecular pathway that regulates how blood vessels develop in the eye. The findings in Nature Cell Biology suggest it may be possible to use light therapy to help premature infants whose eyes are still developing avoid vision problems. The novel molecular process helps ensure blood-vessel development in the eye is appropriately balanced to prepare it for visual function.
A $5.7 billion global medical bill to restore sight for the estimated 45 million people with cataracts could be slashed in half by a diet rich in colourful fruits and vegetables, according to an international study.
This study looked at the association of calcium intake (dietary and supplementation) with the risk and progression of age-related macular degeneration (AMD), a leading cause of blindness. Previous research has had mixed results about the role of calcium in AMD progression. This study, a secondary analysis of 4,751 randomized clinical trial participants, found higher calcium intake was associated with lower risk of progression to late AMD but there was an inconsistent association between calcium intake and different stages of AMD.