All articles tagged with #eye health
A Swedish study of 100 patients with lingering ocular symptoms after COVID-19 links long-lasting vision problems to ongoing inflammation and nerve damage, often undetectable by standard eye exams; tear analyses show dysregulated immune-related proteins and reduced corneal nerves with abnormal pupillary reflexes, suggesting autonomic nervous system involvement and the need for specialized diagnostics and treatment.
Eye health can reflect brain health, and untreated vision problems are a major, modifiable dementia risk factor. While vision loss doesn’t directly cause dementia, correcting vision (updating lenses, cataract/AMD treatment) can help keep the brain engaged with the visual world and may reduce dementia risk by up to about 30%. Eye exams and retinal imaging (OCT) might even help track dementia progression. Regular eye care, addressing underlying eye diseases, avoiding smoking, and maintaining vision health can support cognitive function, even after a dementia diagnosis.
Eye doctors warn that three common contact-lens habits can raise infection risk and even cause rare serious eye problems, so wearers should avoid certain activities, practice proper handling, and follow recommended replacement and cleaning routines to protect long-term eye health.
Wearing a sleep mask helps block light, supporting melatonin and potentially improving sleep; research ranks eye masks among the most effective nonpharmacologic sleep aids, though there’s no official endorsement. Material matters for skin—silk is gentle and less absorbent, cotton is breathable but rougher, and synthetics can trap heat. Wash masks regularly (ideally every 2–3 uses) to prevent acne or infections, and prep your skin (wash face, allow products to absorb) before wearing. Masks are generally safe for nightly use and can reduce sleep creases, but they won’t replace skincare basics or sunscreen for wrinkle prevention; avoid masks for babies or certain at-risk individuals.
A large Korean study of 32,316 matched former smokers followed for about 4.6 years found that those who switched to electronic cigarettes or other smokeless nicotine products had a higher risk of major eye diseases than those who quit nicotine entirely. Specifically, switchers had a 24% higher risk of diabetic retinopathy and a 7% higher risk of refractive/accommodation disorders, with quitters showing 41.1 vs 44 cases per 1,000 person-years. The study observed 6,328 eye-disease events overall. Authors caution that the retrospective, self-reported data cannot prove causation, but the findings suggest substituting nicotine products may not eliminate eye-disease risk.
As people age, four common eye conditions—diabetic retinopathy, glaucoma, cataracts, and macular degeneration—rise in risk, but most vision loss can be prevented or delayed through regular eye exams (starting after age 45 or when diabetes is diagnosed), a healthy lifestyle, controlling blood pressure, diabetes, and cholesterol, protecting eyes from UV light, and timely treatments such as cataract surgery or glaucoma management; support and rehabilitation options are available for those with visual impairment.
Life Biosciences has dosed the first patient in an FDA-cleared trial of ER-100, a gene-therapy approach to reverse age-related degeneration of retinal neurons in glaucoma by reprogramming cells with Yamanaka factors activated by doxycycline for eight weeks. The work, building on Harvard's David Sinclair research, aims to rejuvenate vision but faces expert caution about potential runaway cell growth or cancer from cellular reprogramming.
Eye doctors reveal nine everyday habits to avoid for protecting vision: never sleep in contact lenses, take breaks from screens using the 20-20-20 rule, keep up regular eye exams (especially if you have diabetes), don’t ignore sudden vision changes like floaters or flashes, don’t leave makeup on overnight and address under-lubrication, never look at the sun without proper protection, don’t smoke or vape, don’t rinse contacts in tap water, and eat a balanced diet to reduce eye disease risk.
Eye exams can uncover serious health problems beyond vision—retinal changes can reveal high blood pressure, glaucoma risk, and diabetic eye disease; doctors can also spot Demodex blepharitis and, if papilledema is present, possible brain tumors or masses, as well as inflammation signaling autoimmune disease. The piece stresses regular annual eye checkups and appropriate follow-ups, with treatments ranging from blood pressure and glucose control to specialized eyelid mite therapy and autoimmune workups as needed.
A Radboud University Medical Center study of nearly a decade of primary care data found that eye floaters can be an early warning sign of retinal detachment, with about 1.6% of patients reporting only floaters diagnosed with a retinal tear or detachment. Most floaters are harmless aging effects, but a sudden increase in floater activity (especially with flashes or both symptoms) should prompt an eye examination to rule out serious issues.
Tattoo-associated uveitis is a rare condition where chemicals in tattoo ink trigger an immune reaction that can breach the eye’s blood-ocular barrier and inflame the uvea, potentially causing pain, redness and light sensitivity. If left untreated, it may lead to glaucoma or cataracts and permanent vision loss. Australian studies show rising cases, with larger tattoos and black ink more often implicated, and risk factors including immune-related conditions like multiple sclerosis or certain arthritides. Treatments include steroid eye drops or injections and immunosuppressants, but outcomes vary (roughly 75% temporary vision loss and 17% permanent in some cases). If eye swelling or vision problems occur after a tattoo, consult an optometrist promptly for evaluation and possible referral to a specialist.
A registered dietitian identifies four foods—egg yolks, pistachios, sweet potatoes, and spinach—that supply eye-supporting nutrients such as lutein, zeaxanthin, beta-carotene, and vitamin A. Because lutein and zeaxanthin are fat-soluble, pairing them with fats (like eggs) aids absorption. These foods may help protect the retina, shield eyes from blue light, support night vision, and reduce risks of dry eye, cataracts, and age-related macular degeneration over time.
A SUNY College of Optometry study with 34 participants suggests indoor lighting and sustained near-work can alter how the eye accommodates, converges, and constricts pupils in myopes, with contrast more influential than brightness in driving inward eye movements. This may weaken a retinal pathway and create a feedback loop that worsens myopia, offering a new hypothesis for the global rise (projected ~40% of youth affected by 2050). The study is small and not longitudinal, so outdoor vs indoor effects remain unproven and more research is needed.
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.
Ophthalmologists lay out 13 practical steps to protect eye health, from regular sight tests (every two years) and using an optician as a first port of call for vision changes, to UV protection with UV400 sunglasses, the 20-20-20 rule to reduce screen strain, outdoor play for kids to curb myopia, safe contact-lens use and hygiene, careful makeup use, and lifestyle choices such as not smoking and staying hydrated; they also stress seeking urgent care for sudden vision loss or eye injuries, and safe DIY practices and eye protection at work.