Could my glasses be making my eyesight worse?
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So, you got your eyesight tested and found out you need your first pair of glasses. Or you found out you need a stronger pair than the ones you have. You put them on and everything looks crystal clear. But after a few weeks things look blurrier without them than they did before your eye test. What’s going on?
Some people start to wear spectacles for the first time and perceive their vision is “bad” when they take their glasses off. They incorrectly interpret this as the glasses making their vision worse. Fear of this might make them less likely to wear their glasses.
But what they are noticing is how much better the world appears through the glasses. They become less tolerant of a blurry world when they remove them.
Here are some other things you might notice about eyesight and wearing glasses.
Lazy eyes?
Some people sense an increasing reliance on glasses and wonder if their eyes have become “lazy”.
Our eyes work in much the same way as an auto-focus camera. A flexible lens inside each eye is controlled by muscles that let us focus on objects in the distance (such as a footy scoreboard) by relaxing the muscle to flatten the lens. When the muscle contracts it makes the lens steeper and more powerful to see things that are much closer to us (such as a text message).
From the age of about 40, the lens in our eye progressively hardens and loses its ability to change shape. Gradually, we lose our capacity to focus on near objects. This is called “presbyopia” and at the moment there are no treatments for this lens hardening.
Optometrists correct this with prescription glasses that take the load of your natural lens. The lenses allow you to see those up-close images clearly by providing extra refractive power.
Once we are used to seeing clearly, our tolerance for blurry vision will be lower and we will reach for the glasses to see well again.
The wrong glasses?
Wearing old glasses, the wrong prescription (or even someone else’s glasses) won’t allow you to see as well as possible for day-to-day tasks. It could also cause eyestrain and headaches.
Incorrectly prescribed or dispensed prescription glasses can lead to vision impairment in children as their visual system is still in development.
But it is more common for kids to develop long-term vision problems as a result of not wearing glasses when they need them.
By the time children are about 10–12 years of age, wearing incorrect spectacles is less likely to cause their eyes to become lazy or damage vision in the long term, but it is likely to result in blurry or uncomfortable vision during daily wear.
Registered optometrists in Australia are trained to assess refractive error (whether the eye focuses light into the retina) as well as the different aspects of ocular function (including how the eyes work together, change focus, move around to see objects). All of these help us see clearly and comfortably.
What about dirty glasses?
Dirty or scratched glasses can give you the impression your vision is worse than it actually is. Just like a window, the dirtier your glasses are, the more difficult it is to see clearly through them. Cleaning glasses regularly with a microfibre lens cloth will help.
While dirty glasses are not commonly associated with eye infections, some research suggests dirty glasses can harbour bacteria with the remote but theoretical potential to cause eye infection.
To ensure best possible vision, people who wear prescription glasses every day should clean their lenses at least every morning and twice a day where required. Cleaning frames with alcohol wipes can reduce bacterial contamination by 96% – but care should be taken as alcohol can damage some frames, depending on what they are made of.
When should I get my eyes checked?
Regular eye exams, starting just before school age, are important for ocular health. Most prescriptions for corrective glasses expire within two years and contact lens prescriptions often expire after a year. So you’ll need an eye check for a new pair every year or so.
Kids with ocular conditions such as progressive myopia (short-sightedness), strabismus (poor eye alignment), or amblyopia (reduced vision in one eye) will need checks at least every year, but likely more often. Likewise, people over 65 or who have known eye conditions, such as glaucoma, will be recommended more frequent checks.
An online prescription estimator is no substitute for a full eye examination. If you have a valid prescription then you can order glasses online, but you miss out on the ability to check the fit of the frame or to have them adjusted properly. This is particularly important for multifocal lenses where even a millimetre or two of misalignment can cause uncomfortable or blurry vision.
Conditions such as diabetes or high blood pressure, can affect the eyes so regular eye checks can also help flag broader health issues. The vast majority of eye conditions can be treated if caught early, highlighting the importance of regular preventative care.
James Andrew Armitage, Professor of Optometry and Course Director, Deakin University and Nick Hockley, Lecturer in Optometric Clinical Skills, Director Deakin Collaborative Eye Care Clinic, Deakin University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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How extreme heat can affect you—and how you can protect yourself
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Because of climate change, last summer was the hottest in the Northern Hemisphere in 2,000 years—and this summer is expected to be even hotter. The record may continue to be broken: Extreme heat is expected to become even more frequent.
The scorching heat has led to an increase in heat-related deaths in the United States, according to the Department of Health and Human Services, with approximately 2,300 deaths in the summer of 2023. Extreme heat, defined as a period of two to three days with high heat and humidity with temperatures above 90 degrees Fahrenheit, can have serious health consequences, including symptoms like headache, dizziness, loss of consciousness, nausea, and confusion.
As we face more extreme heat, you may be wondering how you can protect yourself and your loved ones. Read on to learn about heat-related illness, who’s most at risk, and more.
What happens when our bodies are exposed to extreme heat?
As our body temperature rises, our bodies attempt to cool down by opening up more blood vessels near the skin to begin sweating. The evaporation of our sweat regulates our body temperature, but it also leads to losing fluids and minerals.
When it’s too humid, sweating alone doesn’t do the trick. The heart must work harder to bring blood around the body. It starts beating faster, which can cause light-headedness, nausea, and headache.
This process can affect our health in different ways, including increasing our risk of hospitalization for heart disease, worsening asthma, and injuring kidneys due to dehydration. It can also result in heat-related illness. Below are some effects of heat on our bodies:
- Heat cramps: Occur when a person loses salt through sweating, which causes painful cramps. Symptoms begin as painful spasms after heavy sweating, usually in the legs or the stomach. Heat cramps can lead to heat exhaustion or heat stroke.
- Heat exhaustion: This occurs when the body loses an excessive amount of water and salt, usually during intense physical activity. Symptoms include irritability, heavy sweating, and weakness, including muscle cramps. Heat exhaustion can lead to heat stroke.
- Heat stroke: This is the most severe heat-related illness. It happens when the body can’t cool down and reaches a temperature of 106 Fahrenheit or higher within 10 to 15 minutes. If the person doesn’t receive emergency treatment, it can cause permanent disability or death. Symptoms include confusion, loss of consciousness, and seizures.
What should I do if someone experiences a heat-related illness?
If you or someone you’re with begins to show signs of heat illness, the Centers for Disease Control and Prevention recommends the following:
- Heat cramps: Stop all physical activity, drink water or a sports drink, move to a cool place, and wait for cramps to go away before resuming activity. If the cramps last more than an hour, you’re on a low-sodium diet, or you have heart problems, get medical help.
- Heat exhaustion: Move the person to a cool place, loosen their clothes, use a cool bath or cloths to try to lower their body temperature, and give them a sip of water. If the person throws up, or if their symptoms last longer than an hour or worsen, get medical help.
- Heat stroke: Call 911 immediately. Then, move the person to a cooler place, use cool cloths or a cool bath to help lower their temperature, and don’t give them anything to drink.
Read more about heat-related illness and what to do in each case.
Who’s more vulnerable to extreme heat?
While everyone can be affected by extreme heat, some people are more at risk, including people of color.
A 2023 KFF report outlined that because of historical residential segregation in the U.S. (known as “redlining”), people of color are more likely to live in areas that experience higher temperatures from rooftops, asphalt, and sidewalks that retain the sun’s heat (known as the “urban heat island effect”). Additionally, communities of color are more likely to live in areas with fewer trees, which act as a canopy and provide shade, making the heat worse and more direct.
Children under 5, adults 65 or over, and pregnant people are also more vulnerable to extreme heat. If you have a chronic health condition like diabetes, heart problems, or a mental health condition, you’re also at higher risk. (Some psychiatric medications, like antidepressants, can also make people more susceptible to heat).
Lastly, anyone exposed to the sun and extreme heat for long periods is also at higher risk. This includes athletes, people who work outdoors, and unhoused people.
What can I do to prevent heat-related illness during a heat wave?
During a heat wave, follow these tips to stay cool and protect yourself from heat-related illness:
- Never leave your pets or children inside a car.
- Wear loose, light-colored clothing (dark colors absorb more heat).
- Find shade if you’re outside.
- If you don’t have air conditioning in your home, go to a place where you can cool down, such as a local library, community center, local pool or splash pad, or mall. Check to see if your city has designated cooling centers. (Cities like New York have a list of places.)
- Wear a hat.
- Drink (non-alcoholic) fluids often to stay hydrated—and if you have pets, give them water frequently as well.
- Check on your family members or older neighbors who may be more sensitive to extreme heat.
- Avoid using your stove or oven too often or during the hottest parts of the day.
- Cover your windows with shades to keep the heat out.
What are some resources to prevent heat-related illness?
If you need financial assistance to cool down your home, such as to purchase an air conditioner, apply to the federal government’s Low Income Home Energy Assistance Program.
Before you head outside during a heat wave, use the CDC’s HeatRisk tool: Enter your zip code to find the current heat risk in your area and get tips on what to do to stay safe with each risk level.
During a heat wave, also look for a cooling center in your state using the National Center for Healthy Housing’s list.
Check out the National Weather Service’s for more tips and resources.
For more information, talk to your health care provider.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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How To Kill Laziness
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Laziness Is A Scooby-Doo Villain.
Which means: to tackle it requires doing a Scooby-Doo unmasking.
You know, when the mystery-solving gang has the “ghost” or “monster” tied to a chair, and they pull the mask off, to reveal that there was no ghost etc, and in fact it was a real estate scammer or somesuch.
Social psychologist Dr. Devon Price wrote about this (not with that metaphor though) in a book we haven’t reviewed yet, but will one of these days:
Laziness Does Not Exist – by Dr. Devon Price (book)
In the meantime, and perhaps more accessibly, he gave a very abridged summary for Medium:
Medium | Laziness Does Not Exist… But unseen barriers do (11mins read)
Speaking of barriers, Medium added a paywall to that (the author did not, in fact, arrange the paywall as Medium claim), so in case you don’t have an account, he kindly made the article free on its own website, here:
Devon Price | Laziness Does Not Exist… But unseen barriers do (same article; no paywall)
He details problems that people get into (ranging from missed deadlines to homelessness), that are easily chalked up to laziness, but in fact, these people are not lazily choosing to suffer, and are usually instead suffering from all manner of unchosen things, ranging from…
- imposter syndrome / performance anxiety,
- perfectionism (which can overlap a lot with the above),
- social anxiety and/or depression (these also can overlap for some people),
- executive dysfunction in the brain, and/or
- just plain weathering “the slings and arrows of outrageous fortune [and] the heartache and the thousand natural shocks that flesh is heir to”, to borrow from Shakespeare, in ways that aren’t always obviously connected—these things can be great or small, it could be a terminal diagnosis of some terrible disease, or it could be a car breakdown, but the ripples spread.
And nor are you, dear reader, choosing to suffer (even if sometimes it appears otherwise)
Unless you’re actually a masochist, at least, in which case, you do you. But for most of us, what can look like laziness or “doing it to oneself” is usually a case of just having one or more of the above-mentioned conditions in place.
Which means…
That grace we just remembered above to give to other people?
Yep, we should give that to ourselves too.
Not as a free pass, but in the same way we (hopefully) would with someone else, and ask: is there some problem I haven’t considered, and is there something that would make this easier?
Here are some tools to get you started:
- Imposter Syndrome (And Why Almost Everyone Has It)
- Perfectionism, And How To Make Yours Work For You
- How To Set Anxiety Aside
- Mental Health First-Aid (To Get Yourself Or A Loved One Through Depression)
- Procrastination, And How To Pay Off The To-Do List Debt
- Take This Two-Minute Executive Dysfunction Test
Take care!
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Delay Ageing – by Dr. Colin Rose
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Note: the title is spelled that way because it is British English. We generally write in US English here at 10almonds, but we’ll first quote directly from Dr. Rose as written:
❝I have written Delay Ageing because there is some very important recent University research on ageing and age related illness that deserves to be made accessible to a general audience.❞
What is this research? Well, there’s quite a lot over its 300-odd pages (exact number depends on the edition and whether we count end matter), and most of it is tweaks and refinements on things with which you’ll probably be at least brushingly familiar if you’re a regular 10almonds reader.
Dr. Rose addresses the nine hallmarks of aging, of which there are ten, ranging from such things as “telomeres get shorter” and “DNA accumulates damage”, to “stem cells become exhausted” and “cells fail to communicate properly”, and asks the question “what if we were to target all these things simultaneously?”.
Rather than going for drugs on drugs on drugs (half of them to deal with undesired side effects of the previous ones), Dr. Cole leaves no stone unturned to find lifestyle interventions that will improve each of these, even if just a little. Because, all those “little” improvements add up and even compound, and on the flipside, mean that factors of aging aren’t adding up and compounding so much or so quickly anymore.
The rather broad umbrella of “lifestyle interventions” obviously includes food under its auspices, and with it, nutraceuticals. So to give one example, if you’re taking a fisetin supplement (a natural senolytic agent), you’ll find science vindicating that here. And much more.
The style is… Less pop-science and more “textbook written for laypersons”, and you may be thinking “isn’t that the same?” and the difference is that the textbook has a lot less polish and finesse, but often more precise information.
Bottom line: if you’d like to combat aging on 10 different fronts with easily implementable lifestyle interventions, and know exactly what is doing what and how, then this is the book for you.
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Drug companies pay doctors over A$11 million a year for travel and education. Here’s which specialties received the most
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Drug companies are paying Australian doctors millions of dollars a year to fly to overseas conferences and meetings, give talks to other doctors, and to serve on advisory boards, our research shows.
Our team analysed reports from major drug companies, in the first comprehensive analysis of its kind. We found drug companies paid more than A$33 million to doctors in the three years from late 2019 to late 2022 for these consultancies and expenses.
We know this underestimates how much drug companies pay doctors as it leaves out the most common gift – food and drink – which drug companies in Australia do not declare.
Due to COVID restrictions, the timescale we looked at included periods where doctors were likely to be travelling less and attending fewer in-person medical conferences. So we suspect current levels of drug company funding to be even higher, especially for travel.
Monster Ztudio/Shutterstock What we did and what we found
Since 2019, Medicines Australia, the trade association of the brand-name pharmaceutical industry, has published a centralised database of payments made to individual health professionals. This is the first comprehensive analysis of this database.
We downloaded the data and matched doctors’ names with listings with the Australian Health Practitioner Regulation Agency (Ahpra). We then looked at how many doctors per medical specialty received industry payments and how much companies paid to each specialty.
We found more than two-thirds of rheumatologists received industry payments. Rheumatologists often prescribe expensive new biologic drugs that suppress the immune system. These drugs are responsible for a substantial proportion of drug costs on the Pharmaceutical Benefits Scheme (PBS).
The specialists who received the most funding as a group were cancer doctors (oncology/haematology specialists). They received over $6 million in payments.
This is unsurprising given recently approved, expensive new cancer drugs. Some of these drugs are wonderful treatment advances; others offer minimal improvement in survival or quality of life.
A 2023 study found doctors receiving industry payments were more likely to prescribe cancer treatments of low clinical value.
Our analysis found some doctors with many small payments of a few hundred dollars. There were also instances of large individual payments.
Why does all this matter?
Doctors usually believe drug company promotion does not affect them. But research tells a different story. Industry payments can affect both doctors’ own prescribing decisions and those of their colleagues.
A US study of meals provided to doctors – on average costing less than US$20 – found the more meals a doctor received, the more of the promoted drug they prescribed.
Pizza anyone? Even providing a cheap meal can influence prescribing. El Nariz/Shutterstock Another study found the more meals a doctor received from manufacturers of opioids (a class of strong painkillers), the more opioids they prescribed. Overprescribing played a key role in the opioid crisis in North America.
Overall, a substantial body of research shows industry funding affects prescribing, including for drugs that are not a first choice because of poor effectiveness, safety or cost-effectiveness.
Then there are doctors who act as “key opinion leaders” for companies. These include paid consultants who give talks to other doctors. An ex-industry employee who recruited doctors for such roles said:
Key opinion leaders were salespeople for us, and we would routinely measure the return on our investment, by tracking prescriptions before and after their presentations […] If that speaker didn’t make the impact the company was looking for, then you wouldn’t invite them back.
We know about payments to US doctors
The best available evidence on the effects of pharmaceutical industry funding on prescribing comes from the US government-run program called Open Payments.
Since 2013, all drug and device companies must report all payments over US$10 in value in any single year. Payment reports are linked to the promoted products, which allows researchers to compare doctors’ payments with their prescribing patterns.
Analysis of this data, which involves hundreds of thousands of doctors, has indisputably shown promotional payments affect prescribing.
Medical students need to know about this. LightField Studios/Shutterstock US research also shows that doctors who had studied at medical schools that banned students receiving payments and gifts from drug companies were less likely to prescribe newer and more expensive drugs with limited evidence of benefit over existing drugs.
In general, Australian medical faculties have weak or no restrictions on medical students seeing pharmaceutical sales representatives, receiving gifts, or attending industry-sponsored events during their clinical training. They also have no restrictions on academic staff holding consultancies with manufacturers whose products they feature in their teaching.
So a first step to prevent undue pharmaceutical industry influence on prescribing decisions is to shelter medical students from this influence by having stronger conflict-of-interest policies, such as those mentioned above.
A second is better guidance for individual doctors from professional organisations and regulators on the types of funding that is and is not acceptable. We believe no doctor actively involved in patient care should accept payments from a drug company for talks, international travel or consultancies.
Third, if Medicines Australia is serious about transparency, it should require companies to list all payments – including those for food and drink – and to link health professionals’ names to their Ahpra registration numbers. This is similar to the reporting standard pharmaceutical companies follow in the US and would allow a more complete and clearer picture of what’s happening in Australia.
Patients trust doctors to choose the best available treatments to meet their health needs, based on scientific evidence of safety and effectiveness. They don’t expect marketing to influence that choice.
Barbara Mintzes, Professor, School of Pharmacy and Charles Perkins Centre, University of Sydney and Malcolm Forbes, Consultant psychiatrist and PhD candidate, Deakin University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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If You’re Not Flexible, These Are The Only 3 Stretches You Need, To Fix That
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If you can’t put your leg behind your head while standing, try doing the splits against a wall first, and progress from there! ← text version of an item from a “if you can’t do this yet, try this first” picture set this writer saw on Instagram once upon a time
So, what if you’re more at the point of not quite being able to touch your toes yet?
From zero to…
Liv, of LivInLeggings fame, has these three starter-stretches that are actually starter-stretches:
Stretch 1: Reverse Tabletop with Foot Tuck Variation
- Sit on the floor, feet slightly wider than your hips, lean back onto your hands (fingertips pointing outward).
- Lift your hips towards a reverse tabletop, engage your glutes, and flatten the front of your hips.
- Add a foot tuck variation by stepping one foot back and pressing your weight forward.
Benefits:
- Stretches multiple muscles, including the soles of the feet.
- Improves foot arches, balance, and stability.
- Loosens fascia, enhancing flexibility in subsequent stretches.
Stretch 2: Squat to Forward Fold
- Start in a low squat (feet wider than your hips, toes mostly forward).
- Alternate between a low squat and a forward fold, keeping your hands on the floor or your toes.
Benefits:
- Stretches hamstrings, glutes, and lower back.
- Maintains good form and avoids overstraining.
Stretch 3: Side Lunge with Side Body Reach
- Begin in a tall kneeling position, step one foot out to the side (toes pointing outward).
- Lunge your hips towards your front ankle, keeping your tailbone tucked.
- Add a side body reach by resting your forearm on your thigh and reaching the other arm overhead.
- For a deeper stretch, cradle the back of your head with your hand, pressing lightly for a tricep stretch.
Benefits:
- Stretches inner thighs, lats, and triceps.
- Improves posture, shoulder mobility, and low squat ability.
For more on each of these plus visual demonstrations, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Test For Whether You Will Be Able To Achieve The Splits
Take care!
Don’t Forget…
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Codependent No More – by Melody Beattie
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This is a book review, not a book summary, but first let’s quickly cover a common misconception, because the word “codependent” gets misused a lot in popular parlance:
- What codependence isn’t: “we depend on each other and must do everything together”
- What codependence is:“person 1 has a dependency on a substance (or perhaps a behavior, such as gambling); person 2 is trying to look after person 1, and so has developed a secondary relationship with the substance/behavior. Person 2 is now said to be codependent, because it becomes all-consuming for them too, even if they’re not using the substance/behavior directly”
Funny how often it happens that the reality is more complex than the perception, isn’t it?
Melody Beattie unravels all this for us. We get a compassionate and insightful look at how we can look after ourselves, while looking after another. Perhaps most importantly: how and where to draw a line of what we can and cannot do/change for them.
Because when we love someone, of course we want to fight their battles with them, if not for them. But if we want to be their rock of strength, we can’t get lost in it too, and of course that hurts.
Beatty takes us through these ideas and more, for example:
- How to examine our own feelings even when it’s scary
- How to practice self-love and regain self-worth, while still caring for them
- How to stop being reactionary, step back, and act with purpose
If the book has any weak point, it’s that it repeatedly recommends 12-step programs, when in reality that’s just one option. But for those who wish to take another approach, this book does not require involvement in a 12-step program, so it’s not a barrier to usefulness.
Click here to check out Codependent No More and take care of yourself, too
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