
Eye Doctor Reveals Worst Thing For Your Eyes
It is considered the body's most complex organ after the brain and contains over 2 million working parts. About 80% of all learning happens through vision.
So how can we keep our eyes in tip-top condition? And what should we never do if we want them to stay as healthy as possible?
That's what we — Raj Punjabi and Noah Michelson, the hosts of HuffPost's 'Am I Doing It Wrong?' podcast — asked Dr. Amanda Redfern, an ophthalmologist and assistant professor at Oregon Health & Science University's Casey Eye Institute, when she recently dropped by our studio.
″[Sleeping with contact lenses in your eyes] is bad. It's real bad. Don't do it,' Redfern told us, adding that this even applies to naps. 'It's like a game of Russian roulette.'
That's because you can get a corneal ulcer, which is an infection on part of the eye that a contact covers.
'It's not going to happen every time, but when it happens, it's terrible,' Redfern said. 'It can be so bad you could, in really terrible cases, lose your eyeball.'
In less severe situations, Redfern said you could end up with a scar on your cornea.
'If that scar is in the center of your vision, that could affect your vision permanently, unless you get a corneal transplant,' she said.
Redfern also warned us not to engage in any activity that could cause lenses to become compromised or contaminated, including swimming in a pool or lake while wearing contacts or even showering with them.
'The problem with contact lenses is that it will sandwich bacteria between the lens and your cornea, and you can get infected and then have all the complications we talked about,' she said. 'In general, we frown upon anything where your eye is going to expose to something nonsterile.'
That includes using tap water to rinse or store lenses.
When asked what she would suggest if someone were on vacation and forgot to bring contact lens solution, pushing them to choose between sleeping while wearing contacts or using tap water to store them, Redfern refused to pick either choice.
'Both of those are awful options,' she said. 'I'd rather you [throw the contacts out] and just walk around a little bit blurry for the weekend.'
One thing Redfern does want us to do to keep our eyes healthy? Use eye protection more regularly.
'I always wear eye protection if I'm doing a house project where I'm hammering, sawing — anything where something can fly at my eye,' she said. 'Always wear eye protection, because I actually spend half my time seeing hospital consults and the trauma that you see is just crazy.'
If you end up getting something lodged in your eye, don't try to remove it yourself. Instead, tape a paper cup over your eye and immediately see a medical professional.
'Pulling it out in an uncontrolled fashion [could cause] the inner contents of the eye to come out with it,' Redfern said.
She also busted some myths about other activities that may be harmful or beneficial for the eyes (spoiler alert — reading in the dark isn't going to ruin your vision), why we get floaters (and when we should see a doctor about them), and lots more.
Listen to the full episode above or wherever you get your podcasts.
And for more from Redfern, check out her Instagram page.
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2 days ago
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Buzz Feed
5 days ago
- Buzz Feed
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In addition to storing and lubricating your contact lenses improperly, using the same pair for longer than recommended can lead to eye health issues. 'I never forget to discard my contact lenses in the prescribed time period,' McLaughlin said. They don't eat an unbalanced diet. 'Eating a diet high in sugar and fat may go without saying as being bad for one's health, but it also has a disproportionately negative effect on the eyes,' Deobhakta said. 'Certain diseases like diabetes are responsible for the most common forms of irreversible blindness that we see in our clinics, and that is often linked to eating an unbalanced diet high in carbohydrates and fat.' He noted that the risk of experiencing a stroke in the eye is higher for those with uncontrolled high blood pressure. 'Some good news however ― eating a balanced diet (with exercise) not only helps other parts of the body, but drastically reduces the chances of these kinds of diseases occurring,' Deobhakta said. 'So our advice is to eat a Mediterranean Diet, low in sugar and fat, and do something physical you enjoy, like running or biking or taking a walk.'
Yahoo
6 days ago
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Researchers Discovered Two Basic Habits That Can Prevent Alzheimer's, And My Aging Millennial Brain Is Paying Attention
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The opposite holds, too: A decrease in BDNF is often seen in people who have neurological conditions such as Alzheimer's, according to a 2015 study in Archives of Medical Science. But what does 'delaying Alzheimer's' even mean in this case? And how much walking and which foods are most helpful? Ahead, we'll answer those questions and more with insights from the study and Zubkov. What does 'delaying Alzheimer's' even mean? Related: Is 'delaying Alzheimer's' the same as preventing dementia diseases completely, or can it only be applied to people who are currently or about to develop the condition? 'When we talk about 'delaying Alzheimer's,' we're not talking about preventing the disease entirely,' Zubkov said. 'We're talking about slowing how quickly the symptoms appear or progress.' For someone who's starting to experience early changes in their brain, he continued, that could mean a few extra years of clear thinking and independence. That's significant. How does walking generate BDNF? Related: As mentioned, walking is a crucial way to increase BDNF expression. A 2025 study in Brain Sciences reported that walking, particularly at moderate to high intensities, increases BDNF levels, especially right after the exercise. It also found that walking increased BDNF by 11%. But how does that happen? 'Something as basic as a brisk daily walk increases blood flow and oxygen to the brain, which naturally stimulates BDNF release,' Zubkov explained. How much should you walk a day to delay Alzheimer's? Zubkov said there's no 'one magic number' of steps, but he's seen research consistently assert a certain range. 'Most data points to about 7,000 to 8,000 steps a day as a realistic sweet spot for brain and heart health,' he said. That's roughly three to four miles, or an hour to a little over an hour, of walking. The pace matters, too. He encouraged aiming for a brisk pace — aka, fast enough that you can talk, but not sing — for maximum benefits. Additionally, the study found positive results with both acute and long-term exercise. So, try to keep your exercise consistent, but don't give up if you skip a few days. Every walking session counts. What foods can help delay Alzheimer's disease? Related: Nutrition is another key piece, though perhaps not as key as walking. According to the original study mentioned, researchers need more and consistent information on the most beneficial dietary factors and how different foods affect different biomarkers (the latter includes certain proteins, blood pressure and tumors, for example). Additionally, it's important to note that most current research looks at a combination of factors, not diet alone. 'Pairing [walking] with nutrient-rich foods … gives the brain the building blocks it needs to stay resilient,' Zubkov said. With that said, knowledge about brain-healthy foods does exist. The study found positive results with the MIND-diet, or the Mediterranean-DASH Intervention for Neurodegenerative Delay. It's a hybrid of the Mediterranean diet and the Dietary Approaches to Stop Hypertension (DASH) antihypertensive diet. The MIND-diet includes whole grains; dark, leafy, green vegetables; nuts; olive oil; berries; and even red wine, among other foods and beverages. Zubkov recommended a few key nutrients: omega-3s, antioxidants and polyphenols. More specifically, he encouraged people to eat fatty fish, walnuts, leafy greens and berries, and to drink green tea. Are there other ways to generate BDNF? The other tips Zubkov shared are the typical self-care recommendations you've heard from your doctor: aerobic exercise, resistance training, quality sleep, and stress reduction. Here's a glimpse into what each of those can look like: Aerobic exercise: dancing, swimming, the elliptical, cycling, running Resistance training: push-ups, squats, lunges, planks, using free weights Quality sleep: around six to eight hours, and not 'junk sleep,' aka too little or not solid sleep Stress reduction: deep breathing, talking to friends, meditation, listening to music He added that some early research is looking at peptides, or building blocks of proteins, such as Semax, Selank, and Dihexa, when it comes to influencing BDNF. But beware: 'These are still experimental and should only be used under medical supervision,' Zubkov clarified. Let's keep it simple: If you want to delay Alzheimer's onset, focus on walking and adding nutritious foods, such as walnuts, whole grains and dark green vegetables, into your diet. As both studies and doctors will tell you, these daily habits have a significant impact on your article originally appeared on HuffPost. 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