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Monday, 2 December 2024

Five common eye infections and how to treat them

  Sir Elton John has revealed that he has now lost his sight completely in one eye

Story by Susanna Galton
 • 5h • 6 min read

Some eye infections will clear up of their own accord, others will need to be treated with medication such as antibiotics, in the form of eye drops or ointment, or antihistamines

He’s famous for his show-stopping glasses but, following a severe eye infection, Sir Elton John has revealed that he has now lost his sight completely in one eye. The Rocketman singer, 77, shared at the gala performance of The Devil Wears Prada: “I have lost my sight and I haven’t been able to see the performance.” He recently also revealed that his poor eyesight had put his new album on hold.

Eye infections are common and, like the flamboyant performer, easy to spot, while some can develop into something more serious. Symptoms vary from redness, itching and swelling to pain and blurred vision and can linger for a few days to several weeks. Some infections will need to be treated with medication such as antibiotics, in the form of eye drops or ointment, or antihistamines, while others may develop into something more acute and require expert medical care. 

Following a severe eye infection, Sir Elton John has been left with 'limited eye vision' - Getty Images


Here are the five most common afflictions to affect our eyes.

Uveitis

Uveitis is inflammation of the uvea, the central layer of the eyeball that transports blood to the retina and transmits images to the brain. It can be caused by immune system conditions, infections, or eye injuries, and may be contagious, depending on the cause. There are also types that affect the back of your eye, called “posterior uveitis”, which may take longer to treat – up to several months if caused by an underlying condition.

While uveitis doesn’t usually cause any long-term problems, and it usually starts to improve after a few days to weeks of treatment, you can lose vision if a severe case isn’t treated. 

“Complex or more severe symptoms need reviewing by an ophthalmologist,” says Hughes. “Never ignore deteriorating vision, especially in the context of a new red or painful eye, as infections can be sight-threatening and require prompt treatment.” 

Treatments include: Wearing darkened glasses, eye drops that open up your pupil to relieve pain, corticosteroid eye drops or oral steroids that relieve inflammation, eye injections (ouch) or oral antibiotics for infections that have spread beyond your eye and –  in severe cases – medications that subdue your immune system. 

Blepharitis

This happens when the skin folds covering the eyes become inflamed. It is usually caused by bacteria clogging the oil glands inside the eyelid skin at the base of the eyelashes, but it may have non-infectious causes. Even when the cause is bacteria, it’s not contagious.

Treatments include: Cleaning the eyelids with clean water and applying a warm, wet towel to relieve swelling, along with corticosteroid eye drops or ointments to help with inflammation.

You may also need lubricating eye drops to moisten your eyes and prevent irritation from dryness, as well as antibiotics, which may be oral, topical, or eye drops. Depending on what causes it, it can become a chronic condition that needs continuous management. 

As a general rule, when it comes to our delicate eyes, proceed with caution. “Itchy, gritty eyes or a short history of discharge or watering should be addressed by your GP or chemist,” says Laura Hughes. “If none of these treatments resolve it, it’s best to see an optician promptly for a diagnosis.” 

Conjunctivitis (pink eye)

Infected eyes become pink or red and inflamed, and it can also result from allergies or exposure to chemicals, such as chlorine in swimming pools. Especially common in children, conjunctivitis produces sticky pus or makes eyes feel gritty and is extremely contagious. It happens when blood vessels in the conjunctiva (the thin outermost membrane surrounding your eyeball) become infected by bacteria or a virus. “Conjunctivitis symptoms often present as ‘sticky’ in the morning and most commonly, by far, it is caused by a virus,” says Alex Ionides, a consultant ophthalmologist at Moorfields Eye Hospital.

Treatments include: Antibiotic eye drops and over-the-counter (OTC) antihistamines. Sometimes, the only treatment is to wait it out and apply a clean, warm, wet cloth to your eyes to relieve discomfort. “Your chemist can suggest an over-the-counter antibiotic such as chloramphenicol, but may also suggest seeing an eye doctor to confirm the diagnosis, as other more sinister eye diseases, such as iritis, can appear as a red and inflamed eye. “Most viral conjunctivitis settles in two to three days, but some can last for two to three weeks.”

Keratitis 

Our corneas are the clear, curved, outermost layer of the eye that covers our pupil and iris, and when this gets infected, keratitis (swelling) happens. It can be caused by an infection (bacterial, viral, fungal, or parasitic) or an eye injury. 

“People who wear soft contact lenses are most at risk from bacterial keratitis,” explains Dr Ionides. “Wearers who get a red and inflamed eye should seek immediate advice as these contact lens-related infections can be blinding,” he warns. 

Laura Hughes is a consultant ophthalmologist and oculoplastic surgeon who warns that contact lens wearers need to be especially careful. “Never swim, shower, sleep in lenses or rinse them under tap water,” she says. “As there is also risk of acanthomoeba infection (acanthomoeba keratitis) which is a very serious parasitic infection that can blind and it can be found in various environments including tap water.”

If you notice symptoms, see your doctor immediately in case an infection can be stopped. 

Treatments include: Antibiotic eye drops, which should improve the symptoms in two to seven days after using them. Fungal infections can take many weeks. However, a viral infection cannot be fully eliminated, even with oral antiviral medications or eye drops, and symptoms may later return. 

Styes

A stye is a pimple-like bump that develops from an oil gland on the outer edges of your eyelids. These glands can get clogged with dead skin, oils and other matter, allowing bacteria to overgrow in your gland. The resulting infection causes a stye (or “hordeolum”). Like blepharitis, styes are generally not contagious.

A stye should disappear in about seven to 10 days. Treatments include applying a clean, warm, damp cloth to your eyelids for five minutes at a time a few times a day and using mild, scent-free soap and water to clean your eyelids. 

“Styes are caused by an infection of an eyelash follicle,” says Alex Ionides, “the infection can be drawn out by what your grandmother might have called ‘hot spoon bathing’, that is, stir your tea with a metal spoon and then apply it to the stye.”

Treatments include: Ionides doesn’t recommend using any spoon that’s been in tea, though bathing with a warm flannel can help. “If the skin starts to become infected and spreads, antibiotic tablets are needed, so see an eye doctor if in doubt. Moorfields has 24-hour eye A&E clinics.” 

An antibiotic ointment might be prescribed to help kill the infectious overgrowth, along with over-the-counter tablets such as acetaminophen (Panadol, or paracetamol) to help with pain and swelling. While you’re being treated, you may need to stop using contact lenses or eye make-up.

Prevention

To help stop eye infections or keep viral infections from recurring:

  • Don’t touch your eyes or face with dirty hands
  • Bathe regularly and wash your hands frequently
  • Eat a balanced diet, as nutritional deficiencies are thought to be related to the development of various eye diseases, including infection
  • Use clean towels and tissues on your eyes
  • Don’t share eye and face make-up with anyone
  • Wash your bedsheets and pillowcases at least once a week
  • Wear contact lenses that fit well into your eye, and see your eye doctor regularly to check them
  • Use contact solution to disinfect lenses every day
  • Don’t touch anyone who has conjunctivitis
  • Replace any object that’s been in contact with an infected eye

The bottom line

Eye infections can be caused by germs from objects such as door handles, keyboards, phones and shopping baskets. Germs can also pass from your hands to your eyes, or from someone you shake hands with. 

Eye infection symptoms often go away on their own in a few days. But seek emergency medical attention if you have severe symptoms such as pain or loss of vision. The earlier infections are treated, the less likely you are to experience any complications or loss of vision.

Eye cells can’t regenerate, so once they’re damaged or injured, they can’t be repaired or replaced.


Monday, 27 May 2024

Wegovy injections for weight loss: Side effects and benefits

 Semaglutide, known by its brand name Wegovy, has become a popular weight loss tool. Here’s how it works, and the risks to know about

Wegovy has been predicted to make £20 billion in peak sales, which would make it the most successful drug in history CREDIT: Getty

The UK is one of the heaviest nations in Europe now with 63.8...


https://www.telegraph.co.uk/health-fitness/diet/weight-loss/wegovy-side-effects-benefits/

Fresh ultra-processed food warning:

Eating more meals like ice cream, frozen pizzas and fizzy drinks raises stroke risk by up to 8 per cent


Eating lots of crisps, biscuits and fizzy drinks could lead to a higher risk of memory problems and stroke, according to a new study.

Experts have discovered that there may be a link between a diet high in ultra-processed foods and the likelihood of cognitive decline and life-threatening medical conditions.

These foods are usually high in added sugar, fat and salt, and low in protein and fibre.

They also include the likes of ice cream, burgers, ketchup, mayonnaise, packaged bread and flavoured cereal.



The Nova system, developed by scientists in Brazil more than a decade ago, splits food into four groups based on the amount of processing it has gone through. Unprocessed foods include fruit, vegetables, nuts, eggs and meat. Processed culinary ingredients ¿ which are usually not eaten alone ¿ include oils, butter, sugar and salt

The Nova system, developed by scientists in Brazil more than a decade ago, splits food into four groups based on the amount of processing it has gone through. Unprocessed foods include fruit, vegetables, nuts, eggs and meat. Processed culinary ingredients — which are usually not eaten alone — include oils, butter, sugar and salt

Food experts say some UPFs can be 'part of a healthy diet'. Baked beans, fish fingers and wholemeal bread all make the cut, according to the British Nutrition Foundation (BNF). Tomato-based pasta sauces, wholegrain breakfast cereals and fruit yoghurts are also 'healthier processed foods', the charity says

Food experts say some UPFs can be 'part of a healthy diet'. Baked beans, fish fingers and wholemeal bread all make the cut, according to the British Nutrition Foundation (BNF). Tomato-based pasta sauces, wholegrain breakfast cereals and fruit yoghurts are also 'healthier processed foods', the charity says

Unprocessed — or minimally processed — food, on the other hand, include meats such as simple cuts of beef, pork and chicken, and fruit and vegetables.

A team from Massachusetts General Hospital in Boston analysed 30,239 people aged 45 or older who were followed for an average of 11 years.

Participants filled out questionnaires about what they ate and drank, allowing the researchers to determine how much ultra-processed food each person ate on average per day.

WHAT ARE ULTRA-PROCESSED FOODS? 

Ultra-processed foods are high in added fat, sugar and salt, low in protein and fibre and contain artificial colourings, sweeteners and preservatives.

The term covers food that contains ingredients that a person wouldn't add when cooking at home — such as chemicals, colourings and preservatives.

Ready meals, ice cream, sausages, deep-fried chicken and ketchup are some of the best-loved examples.

They are different to processed foods, which are processed to make them last longer or enhance their taste, such as cured meat, cheese and fresh bread.

Ultra-processed foods, such as sausages, cereals, biscuits and fizzy drinks, are formulations made mostly or entirely from substances derived from foods and additives.

They contain little or no unprocessed or minimally processed foods, such as fruit, vegetables, seeds and eggs.

The foods are usually packed with sugars, oils, fats and salt, as well as  additives, such as preservatives, antioxidants and stabilisers.

Ultra-processed foods are often presented as ready-to-consume, taste good and are cheap.

Source: Open Food Facts  

That percentage was then calculated into four groups, ranging from the least processed foods to the most processed foods.

By the end of the study, 768 people were diagnosed with cognitive impairment and 1,108 people had a stroke.

Analysis revealed that a 10 per cent increase in the amount of ultra-processed foods eaten was linked to a 16 per cent higher risk of being diagnosed with cognitive impairment.

However, eating more unprocessed foods was linked with a 12 per cent lower risk of cognitive impairment.

Meanwhile, a greater intake of ultra-processed foods was linked to an 8 per cent increased risk of stroke.

A greater intake of less-processed foods was linked to a 9 per cent decreased risk of stroke.

Study author Dr William Kimberley said: 'While a healthy diet is important in maintaining brain health among older adults, the most important dietary choices for your brain remain unclear.

'We found that increased consumption of ultra-processed foods was associated with a higher risk of both stroke and cognitive impairment.

'Our findings show that the degree of food processing plays an important role in overall brain health.

'More research is needed to confirm these results and to better understand which food or processing components contribute most to these effects.'

The findings were published in the journal Neurology.

A separate study, published earlier this year, suggested that ultra-processed meat such as chicken nuggets and hot dogs can raise the risk of an early death by 13 per cent.

Researchers at Harvard University who tracked the diets of more than 114,000 middle-aged nurses and health professionals in the United States for three decades found a link between the consumption of mass-produced foods and the risk of dying early.

Diets high in ready-made processed meat and fish products appeared to be the most harmful, increasing the risk of early death by 13 per cent.

This category includes items such as shop-bought sausages, burgers, fish fingers, chicken nuggets and turkey twizzlers.

https://www.dailymail.co.uk/health/article-13448231/Fresh-ultra-processed-food-warning-Eating-meals-like-ice-cream-frozen-pizzas-fizzy-drinks-raises-stroke-risk-8-cent.html