Healthy eating can protect eyesight

When it comes to protecting your vision, what you eat may affect what you see, reports the August 2013 Harvard Health Letter. Vitamins, minerals, and other nutrients found in food play a role in preventing two common causes of vision problems: cataracts and age-related macular degeneration. Cataracts are cloudy areas in the lens of the eye, while macular degeneration is a deterioration of the macula, the part of the eye that controls central vision. "While there is no definite proof, some studies suggest that eating a diet rich in certain nutrients may help," says Dr. Ivana Kim, associate professor of ophthalmology at Harvard Medical School. Nutrients thought to be responsible for eye protection include antioxidant vitamins and minerals, lutein and zeaxanthin, and the omega-3 fatty acid docosahexaenoic acid (DHA). How can you get enough of these natural vision helpers? Load up on foods that deliver them: lutein, zeaxanthin: broccoli, Brussels sprouts, collard greens, corn, eggs, kale, nectarines, oranges, papayas, romaine lettuce, spinach, squash omega-3 fatty acids: flaxseed, flaxseed oil, halibut, salmon, sardines, tuna, walnuts vitamin A: apricots, cantaloupe (raw), carrots, mangos, red peppers (raw), ricotta cheese (part-skim), spinach, sweet potatoes vitamin C: broccoli, Brussels sprouts, grapefruit, kiwi, oranges, red peppers, strawberries vitamin E: almonds, broccoli, peanut butter, spinach, sunflower seeds, wheat germ zinc: chickpeas, oysters, pork chops, re...
Source: New Harvard Health Information - Category: Consumer Health News Source Type: news

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Conclusion: Uneventful phacoemulsification may induce changes in the posterior eye segment. An increase in CT and FRT was observed in both groups one month after the surgery. However, three months after surgery, CT changes were different in both groups, while FRT decreased in both groups. CT changes negatively associated with age in the No-AMD group and with AL in the AMD eyes. These postoperative changes in the choroid and retina may not only lead to the late-onset pseudophakic cystoid macular edema but also to progression of AMD. PMID: 32455884 [PubMed - in process]
Source: Medicina (Kaunas) - Category: Universities & Medical Training Authors: Tags: Medicina (Kaunas) Source Type: research
A 90-year-old female with a past medical history of trigeminal neuralgia and age-related macular degeneration (AMD) presented with a four-day history of a left-sided headache, nausea, and vomiting. Regarding her left eye, she reported intermittent flashes of light over the past month and complete vision loss for four days. She denied a history of diabetes, hypertension, anticoagulant use, or ocular trauma. Her ocular history included the use of reading glasses and bilateral cataract surgery forty-five years ago.
Source: The American Journal of Emergency Medicine - Category: Emergency Medicine Authors: Source Type: research
This study provides direct evidence for the contribution of gut microbiota to the cognitive decline during normal aging and suggests that restoring microbiota homeostasis in the elderly may improve cognitive function. On Nutraceutical Senolytics https://www.fightaging.org/archives/2020/05/on-nutraceutical-senolytics/ Nutraceuticals are compounds derived from foods, usually plants. In principle one can find useful therapies in the natural world, taking the approach of identifying interesting molecules and refining them to a greater potency than naturally occurs in order to produce a usefully large therape...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
The wet form of age-related macular degeneration involves an excessive growth of blood vessels behind the retina, disrupting structure to produce a progressive and presently irreversible loss of vision. Researchers here point out a role for IL-4 in this process, though the mechanisms involved are probably a fair way downstream from the causes of chronic inflammation and immune system dysfunction that spur the development of macular degeneration. Sometimes it is a possible to find a good place to sabotage the development of pathology that is distant from the root causes, but the odds are not favorable. More commonly, later ...
Source: Fight Aging! - Category: Research Authors: Tags: Daily News Source Type: blogs
I am fearful for the future, uncertain for how my skills will hold up when put to testCoronavirus – latest updatesSee all our coronavirus coverageI am an ophthalmologist. I am the doctor you see for your cataract surgery, the doctor your grandmother sees to have her age-related macular degeneration checked, the one who prescribed the bedtime drops to slow down your grandfather ’s glaucoma. In the next few weeks I will be the doctor your father sees for his stroke, the doctor who treats your grandmother’s heart failure, the doctor you see in A&E to treat your asthma. Potentially the doctor you meet in inte...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Coronavirus outbreak Doctors Society Health Society Professionals Infectious diseases Science NHS Work & careers Guardian Careers Source Type: news
In conclusion, elevated brain amyloid was associated with family history and APOE ε4 allele but not with multiple other previously reported risk factors for AD. Elevated amyloid was associated with lower test performance results and increased reports of subtle recent declines in daily cognitive function. These results support the hypothesis that elevated amyloid represents an early stage in the Alzheimer's continuum. Blood Metabolites as a Marker of Frailty https://www.fightaging.org/archives/2020/04/blood-metabolites-as-a-marker-of-frailty/ Frailty in older people is usually diagnosed in a sympt...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Cellular senescence contributes to many age-related diseases. Senescent cells arise naturally as a result of the Hayflick limit on cellular replication, as well as injury, or due to molecular damage or a toxic environment that might give rise to cancer. A senescent cell ceases replication and secretes a potent mix of signals that produce inflammation and disrupt nearby tissue structure and function. In youth, senescent cells are near all quickly removed, via programmed cell death or the actions of the immune system, but these removal mechanisms falter with age. Senescent cells accumulate as a result, and the more of them t...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs
ABSTRACT Degenerative retinal diseases such as retinitis pigmentosa, Stargardt ’ s macular dystrophy, and age-related macular degeneration are characterized by irreversible loss of vision due to direct or indirect photoreceptor damage. No effective treatments exist, but stem cell studies have shown promising results. Our aim with this review was to describe the types of stem cells that are under study, their effects, and the main clinical trials involving them.RESUMO As doen ças degenerativas da retina, como retinose pigmentar, distrofia macular de Stargardt e degeneração macular relaciona &agrav...
Source: Arquivos Brasileiros de Oftalmologia - Category: Opthalmology Source Type: research
Artificial intelligence (AI) has been studied in ophthalmology since availability of digital information in ophthalmic care. The significant turning point was availability of commercial digital color fundus photography in the late 1990s, which caused digital screening for diabetic retinopathy (DR) to take off. Automated Retinal Disease Assessment software was then developed using machine learning to detect abnormal lesions in fundus to screen DR. The use of this version of AI had not been generalized because the specificity at 45% was not high enough, although the sensitivity reached 90%. The recent breakthrough in machine...
Source: Asia-Pacific Journal of Ophthalmology - Category: Opthalmology Tags: Perspectives Source Type: research
The rising popularity of artificial intelligence (AI) in ophthalmology is fuelled by the ever-increasing clinical “big data” that can be used for algorithm development. Cataract is one of the leading causes of visual impairment worldwide. However, compared with other major age-related eye diseases, such as diabetic retinopathy, age-related macular degeneration, and glaucoma, AI development in the domain of cataract is still relatively underexplored. In this regard, several previous studies explored algorithms for automated cataract assessment using either slit lamp of color fundus photographs. However, several ...
Source: Asia-Pacific Journal of Ophthalmology - Category: Opthalmology Tags: Review Article Source Type: research
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