Tag

Vision

All articles tagged with #vision

science5 days ago•42 min saved

Lab-grown retinal vessels restore function in mice, fueling hope for blindness treatments

Duke University researchers used induced pluripotent stem cells (iPSCs) to grow retinal endothelial cells—the vessels lining the retina—and demonstrated they can form functional vascular networks in lab conditions. When injected into mouse models of retinal disease, the lab-grown cells integrated with existing tissue to rebuild blood vessels and restore retinal function, suggesting a cheaper, scalable path toward preventative therapies for conditions like diabetic retinopathy.

via Good News Network|

#diabetic-retinopathy #ipscs #retina

science13 days ago•3 min saved

Mouse Brain Signals Turn Viewed Clips Into Reconstructed Movies

Researchers used single‑cell recordings from the mouse visual cortex to recreate 10‑second videos the mice watched, by applying a dynamic neural encoding model and comparing predicted neuron activity to actual activity. The reconstructions, which improved when more neurons were included and were validated by pixel-level correlations, offer a closer look at how visual information is encoded in the brain and why neural representations can diverge from reality, with work published in eLife.

via SciTechDaily|

#brain-activity #mice #neuroscience

health18 days ago•11 min saved

TRICARE clarifies who gets vision care and how it’s covered

TRICARE outlines vision coverage and routine eye-exam options for active duty members, National Guard/Reserve, dependents, and retirees, including eligibility for FEDVIP vision plans. Coverage varies by plan and age, and referrals or pre-authorization may be required. Active duty members must have regular eye exams; civilian-provider options exist with referrals for some plans. Glasses or contacts are covered only for specific conditions, and TRICARE encourages checking your plan details and consulting your regional contractor for questions.

via TRICARE Newsroom (.mil)|

#coverage #eye-exams #fedvip

business26 days ago•5 min saved

J&J Expands U.S. Vision Manufacturing with a $1B Jacksonville Investment

Johnson & Johnson announced a more than $1 billion investment in Jacksonville, Florida to scale U.S.-based Vision manufacturing, packaging, and a new distribution facility as part of a $55 billion U.S. investment through 2029. The upgrades aim to boost ACUVUE contact lens production for about 40 million patients, support 3,500 local jobs, and strengthen supply chain resilience, with the facility slated to be fully operational in 2028 and Florida’s economy benefiting from an estimated $6 billion annual impact.

via Johnson & Johnson|

#acuvue #business #jacksonville

science1 month ago•38 min saved

One Eye Leads: The Evolutionary Reason Humans Favor a Dominant Eye

An evolutionary biologist explains that many people have a dominant eye that provides input for precise tasks. This ocular dominance arises from how eyes coordinate with brain hemispheres to optimize depth perception and motor control, potentially offering an evolutionary edge in tracking and aiming. Dominance is not fixed and can shift with training or context, affecting performance in activities like sports, photography, and aiming tasks.

via Forbes|

#biology #evolution #neuroscience

science1 month ago•38 min saved

The Ultraviolet Blind Spot: How Evolution Shaped Human Vision

Humans can’t see ultraviolet light because the eye’s cornea and lens absorb most UV radiation before it reaches the retina. Evolution favored eye protection from UV damage, leaving our photoreceptors tuned to the visible spectrum. By contrast, many other animals have UV-sensitive visual systems, which helps them detect flowers, prey, or mates that reflect UV patterns. The article explains how this filtering works, why UV perception is advantageous for some species but not humans, and what this tells us about how vision has evolved in different lineages.

via Forbes|

#biology #evolution #eyes

business2 months ago•38 min saved

Ted Turner's Vision Blueprint: A 1982 Lesson in Bold Leadership

A 1982 encounter with Ted Turner, the CNN founder, taught the author to craft a bold, future-focused vision, use storytelling to rally a team, and stay disciplined toward long-term goals rather than chasing short-term wins, shaping his approach to building media ventures.

via Forbes|

#business #cnn #leadership

science2 months ago•5 min saved

Eyes Open and Eyes Open Video: Visual Cues Boost Hearing in Noise

A study with 25 volunteers found that keeping eyes open and viewing related visuals enhances hearing in noisy environments, while closing eyes makes it harder to detect sounds. EEG data showed eye closure increases suppression of background noise, whereas visual input—especially videos—helps anchor auditory perception. Participants were tested under four visual conditions (eyes closed, blank screen, still image, video) with several target sounds in 70 dB noise, revealing progressively better detection with more engaging visuals. The work, published in The Journal of the Acoustical Society of America, suggests visual engagement can improve auditory sensitivity even in noisy settings.

via ScienceAlert|

#acoustics #eeg #hearing

science2 months ago•3 min saved

Sight Restored: Gene Therapy Breakthrough Wins Major Science Prize

A married couple and investigator Katherine High share a $3 million Breakthrough Prize for Luxturna, the gene therapy approved in 2017 that restores vision in people with Leber congenital amaurosis by delivering a working RPE65 gene to retinal cells; the 25-year project produced dramatic patient improvements and was celebrated at a Los Angeles ceremony, while scientists warned about politicized attacks on science and other prize-winning work highlighted advances in gene therapies for blood disorders.

via The Guardian|

#breakthrough-prize #gene-therapy #leber-congenital-amaurosis

technology3 months ago•78 min saved

Unlock ChatGPT's Power: 7 Hidden Features You Might Be Missing

Tom's Guide highlights seven ChatGPT features—Memory, Prompt iteration, Voice mode, Vision, Canvas, Apps, and Projects—that transform it from a simple Q&A tool into a collaborative AI partner, noting many users quit before leveraging these capabilities and encouraging ongoing prompts and exploration to boost productivity.

via Tom's Guide|

#ai #canvas #chatgpt

health4 months ago•25 min saved

Tattoo Ink Linked to Sight-Threatening Eye Inflammation in Australia

Australian doctors document about 40 cases of tattoo-associated uveitis, an inflammatory eye condition where the immune response to tattoo pigments far from the eye can inflame ocular tissue, risking glaucoma or permanent vision loss; early diagnosis and safer pigments could prevent damage, while treatments like steroid eye drops help some patients and others have suffered irreversible vision loss.

via ZME Science|

#australia #health #immune-system

health4 months ago•15 min saved

Dim Indoor Light May Be Fueling the Global Myopia Boom

A SUNY College of Optometry study published in Cell Reports suggests that dim indoor lighting combined with prolonged close focus may excessively constrict the pupil and reduce retinal illumination, potentially contributing to the global rise in nearsightedness; the idea is still speculative and requires more testing, but it could influence prevention strategies.

via Gizmodo|

#eye-health #health #lighting

science4 months ago•3 min saved

Twilight Zone Fish Unveils Hybrid Photoreceptor, Redefining Vision

Researchers studying deep-sea fish larvae in the mesopelagic 'twilight zone' have found a third photoreceptor that blends cone-like molecular machinery with rod-like shape, a hybrid eye that can detect faint light and bioluminescent signals, challenging 150 years of vision theory that sight relies only on rods and cones. The study, led by Dr. Fabio Cortesi and published in Science Advances, suggests vertebrate vision may involve more than the classic two photoreceptor types.

via The Daily Galaxy|

#deep-sea #hybrid-photoreceptor #mesopelagic

science4 months ago•5 min saved

Eye's Blind Spot May Point to How Consciousness Emerges

Researchers at the University of Glasgow are testing whether the eye’s blind spot—where the optic nerve enters the eye—can illuminate how consciousness arises by evaluating Integrated Information Theory and predictive-processing models, mapping individual blind spots and using eye-tracking to see how the brain fills perceptual gaps and creates a seamless sense of reality.

via Indian Defence Review|

#blind-spot #consciousness #neuroscience

healthcare5 months ago•10 min saved

MHRA warns Ozempic/Wegovy could cause rare eye condition

Britain's MHRA has warned that the diabetes/weight‑loss injections Ozempic (semaglutide) and Wegovy may cause a rare optic nerve condition (NAION) that can lead to sudden vision loss in one eye. The regulator has received three reports, but says the overall risk is very small; with about two million UK users, patients and clinicians are advised to be alert to symptoms and seek urgent eye care if vision changes occur. The warning also notes that pancreatitis is a known but infrequent side effect of GLP-1 weight‑loss drugs.

via The Times|

#healthcare #mhra #naion