Pages

Showing posts with label Infections. Show all posts
Showing posts with label Infections. Show all posts

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.


Wednesday, 3 July 2019

Catheters often overlooked as big source of infection: study

CHICAGO, July 2 (Xinhua) -- Indwelling devices like catheters cause roughly 25 percent of hospital infections, and most problems with catheter use stem from poor physician-nurse communication, a study posted on the website of the University of Michigan (UM) on Monday states.
Source: Xinhua| 2019-07-03 02:59:16|Editor: yan
feature-top
UM researchers interviewed a small group of nurses, physician assistants, nurse practitioners and physicians about problems monitoring and communicating among their teams about patients' indwelling catheters.
All respondents said poor communication delayed removal of unnecessary catheters. Communication broke down for various reasons and on many levels: poor relationships between doctors and nurses, hierarchical differences or misalignment of workflows that prevented nurses from being present for daily rounds.
Catheters are hidden beneath blankets, so physicians don't automatically know who's using one, especially if a nurse isn't there to point it out.
Catheters often remain in too long, which can cause infection, or they aren't necessary at all. It's estimated that 60 percent to 90 percent of intensive care patients, and 10 percent to 30 percent outside the ICU have urinary catheters, according to the study.
"Any foreign object in the body carries an infection risk, and a catheter can serve as a superhighway for bacteria to enter the bloodstream or body," said Milisa Manojlovich, a professor at the UM School of Nursing.
Electronic health records also cause confusion, sometimes nurses and doctors have different information, or there's a lag updating charts, or a reliance on both paper and computer records causes problems, Manojlovich says.
Research shows that some patients and caregivers request catheters, believing they're preferable to getting up to use the toilet. However, they should understand that catheters bring risk of infection, and non-infection risks such as pain, trauma or bleeding, and should talk to their nurse or physician about complications.
The study is slated for the July issue of the American Journal of Critical Care.
http://www.xinhuanet.com/english/2019-07/03/c_138193340.htm

Sunday, 12 April 2015

When sepsis strikes

Sepsis is a potentially life-threatening condition triggered by an infection, and must be detected and treated early.


This post is on Healthwise
April 12, 2015


Severe sepsis or septic shock can only be treated in a hospital and may require admission to the intensive care unit. – Filepic
Severe sepsis or septic shock can only be treated in a hospital and may require admission to the intensive care unit. – Filepic

Sepsis is a potentially life-threatening condition triggered by an infection, and must be detected and treated early.
Everyone suffers from infections from time to time. Various parts of the body can be involved, for example, the respiratory tract, skin and urinary tract.
The organisms are usually bacteria and viruses, but may occasionally be parasites or fungi.
The body’s response to an infection is to limit it to one site. White blood cells travel to the infection site, and a series of reactions occur to fight the infection and prevent its spread.
The process, called inflammation, is aimed at removing the harmful organisms and damaged cells, and start the healing process.
Inflammation can be acute or chronic. The former lasts a few days, though sometimes, a few weeks. The latter can last several months, or even, years, and is due to failure to eliminate the cause of the acute inflammation, or it could be due to a chronic persistent microbe of low intensity. An example of the former is acute upper respiratory tract infection, and the latter, tuberculosis.
When the immune system is weak or the infection is virulent, the infection spreads through the bloodstream to other parts of the body and causes widespread inflammation.
Sepsis is more common among the very young and very old. Photo: AFP
Sepsis is more common among the very young and very old. Photo: AFP
The body’s response injures its own tissues and organs. There may be a marked decrease in blood pressure that affects oxygen transport to vital organs like the heart, kidneys and brain. If untreated or treated inadequately, sepsis leads to multiple organ failure and death.
Infections associated with sepsis are infections of the lung, urinary tract, gallbladder, abdomen, pelvis, skin, and even, flu, in some cases.
The most common infection sites that lead to sepsis are the lungs, urinary tract, abdomen and pelvis.
However, there are instances where the source and cause of the sepsis cannot be identified.
According to the Malaysian Registry of Intensive Care, head injury, sepsis and community-acquired pneumonia were the three most common diagnoses leading to admission to intensive care units (ICU) in Health Ministry hospitals in 2011.
The in-hospital mortality rates of these patients were 25.2%, 58.9% and 40.6% respectively.
Risk factors
Everyone is at risk of sepsis. Some patients with sepsis do not require hospitalisation, although they feel ill. When sepsis is severe, immediate hospitalisation is necessary.
Sepsis is more common in those at risk – the very young and very old; the pregnant; those who have chronic conditions such as diabetes; those who just had surgery, accidental injuries and/or with invasive devices such as drips, catheters and ventilators; those whose immunity are weakened, such as HIV patients or those on treatment that weakens the immunity (long-term steroids, cancer chemotherapy); and those who are hospitalised for some other condition.
Hospital-associated infections are more serious, as many of the bacteria are resistant to many commonly-used antibiotics.
Managing sepsis
The features of sepsis include fever, chills, shivering, tiredness, poor appetite, rapid heart rate and rapid breathing.
The features of severe sepsis, which is life-threatening, include difficulty breathing; abnormal heart function; cold, clammy skin; abrupt change in mental state (confusion, disorientation); slurred speech; loss of consciousness; markedly decreased urine output; and decreased platelets.
The blood pressure in septic shock is very low and does not respond adequately to fluid replacement.
The diagnosis of sepsis is clinical, and the tests include that of blood and body fluids, such as urine, wound secretions, respiratory secretions and stool; imaging, including x-ray, ultrasound, computerized tomography (CT) scan; and kidney, heart and lung function tests.
Early diagnosis is essential to determine the type of infection, its location, and its impact on body functions.
Early treatment is necessary to stop the sepsis from progressing, reduce damage and decrease the risk of death. Treatment is dependent on the site and cause of the initial infection, the organ affected and the damage caused.
Severe sepsis or septic shock can only be treated in a hospital and may require admission to the ICU. This is because the chances of death in severe sepsis and septic shock is about four and six in every 10 affected persons respectively.
The mainstay of treatment for sepsis, severe sepsis or septic shock is antimicrobials upon diagnosis, even before the infectious agent is identified.
Initially, broad-spectrum antimicrobials, which are effective against a variety of organisms, are administered intravenously.
After getting the blood results, the antimicrobials may be changed to one that is more appropriate to the specific cause.
Although antibiotics are not effective against viruses, parasites or fungi, it is likely that they will be started anyway because it would be too dangerous to delay treatment.
Once the specific cause is identified, the appropriate antimicrobial will be given.
Antiviral agents may be given at the outset if there is strong suspicion that it is the cause of the sepsis.
The source of the infection, when identified, will be treated. Collections of pus will be drained. Surgery may be needed to remove pus and infected tissue.
Oxygen is administered through a mask or tubes in the nostrils if blood oxygen levels are low.
Those who have severe difficulty breathing would have a tube inserted into their trachea that is connected to a machine that helps breathing mechanically (i.e. a ventilator).
Medicines called vasopressors are prescribed for low blood pressure to help increase it by stimulating the muscles that pump blood around the body and narrowing or constricting blood vessels.
Extra fluids may also be given intravenously to help increase blood pressure.
Sufficient intake of food and liquids is essential. The former is done by inserting a thin tube up the nose and down into the stomach, or by inserting a drip to provide food and fluids.
Intravenous fluids are usually given in severe sepsis or septic shock to prevent dehydration and kidney failure. A catheter will be inserted into the bladder to monitor urinary output so that renal failure can be detected early.
Painkillers may be needed. Medicines to keep the patient drowsy or asleep may be prescribed to ensure sufficient rest and make the patient more comfortable.
Other treatments that could be instituted include blood transfusion, steroids, insulin and dialysis for impaired kidney function.
The duration of treatment depends on each patient’s individual circumstances.
It is advisable for anyone with features of an infection to seek medical attention, particularly if there are risk factors.
Anyone who develops features of sepsis after surgery, hospitalisation or an infection is advised to seek immediate medical care.
Early diagnosis and treatment will lead to full recovery. Late diagnosis and treatment may lead to disability, and even, death.
http://www.thestar.com.my/Lifestyle/Health/2015/04/12/When-sepsis-strikes/

Go to Healthwise for more articles