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Showing posts with label Eyes Health. Show all posts
Showing posts with label Eyes Health. Show all posts

Correct Method of Contact Lens Wear

Most people who wear contact lenses say they know about how to wear and care for contact lenses. But a new study shows that many do not know how to use the correct contact lenses.

More than 80 percent of contact lens wearers surveyed before eye examinations to believe that they have followed the way of good lenses. But only 2 percent actually meet the measures of contact lens care has been recommended. Less than 1 percent were found to follow fully the recommendations such as washing hands before wearing contact lenses, contact lenses using a special liquid, and replace contact lenses according to instructions.



The survey was conducted in patients who underwent an eye examination in private practice or university. Mostly, that is 85 percent of survey participants have felt keep the contact lens user, but only 0.4 percent are following all the instructions. The study also shows that, most contact lens wearers know what they should do to avoid complications. However, few actually follow all the recommendations. The most frequent complications reported by contact lens wearers surveyed was the inconvenience of a 72 per cent and a 47 percent infection.

Analysis of the results of these studies have been published in the journal Optometry and Vision Science December issue. The study was conducted by researchers Danielle M. Robertson, OD, PhD, and H. Dwight Cavanagh, MD, PhD, of the University of Texas Southwestern Medical Center. Researchers find new strategies to improve compliance guide for the use of contact lens wearers.

"One of the most common cause of contact lens-related complications are not a replacement contact lenses as directed. Often contact lenses are used beyond the time limit stated in the instruction manual," said a spokesman for the American Optometric Association (AOA), Randall Fuerst.

When a user using contact lenses longer than recommended or did not follow the care instructions and storage. Thus, there will be more likely to deposit buildup that can cause chronic eye redness or infection.

User manual, maintenance, and storage of contact lenses according to the AOA, as quoted by WebMD :
1. Always wash and dry your hands before contact lens wear.
2. Clean the contact lenses as often as possible, as recommended by optometrists.
3. Use a special liquid for contact lenses every time to clean and store. Do not use a special liquid that has expired contact lenses.
4. Do not use tap water for contact lens care, including when washing contact lenses. Tap water may contain microorganisms that can cause eye infections.
5. Keep the contact lens in a special storage area of ​​contact lenses and contact lenses to change the place at least every 3 months. Clean the contact lenses after use.
6. Do not swim or soak in a hot tub with the use of contact lenses.
7. Should not wear contact lenses while sleeping.
8. Remove contact lenses if eye redness and gritty sensation in the eye.

Apparently Vitamin D Could Help Overcome Vision Impaired

As you age, the elderly will experience a decrease in visual acuity. Fortunately, researchers found vitamin D can overcome these problems in the elderly. In addition, vitamin D is also useful to improve fitness and Alzheimer's block.

British researchers found vitamin D supplements could potentially be a simple and effective way to cope with aging eye diseases like macular degeneration.



Macular degeneration is a condition in which the macula (the center of the retina and into the retina of the most important) decline resulting in decreased visual acuity and can cause loss of vision.

The study used mice to demonstrate the effect of vitamin D has been seen in just six weeks. Scientists believe many people in developed countries vitamin D deficiency is thought to be important in maintaining the flow of blood supply to the retina.

Professor Jeffrey Glen of the Institute of Ophthalmology at University College London, who led the research explains the small blood vessels that supply blood to the retina is blocked by small molecules over time, causing inflammation.

"In humans, this can lead to decrease in the number of cells in the recipient's eyes light up to 30 percent when aged 70 years and lead to decreased vision," said Prof. Jeffrey, as reported by The Telegraph, Wednesday (01/18/2012).

However, when one year old rats supplemented with vitamin D and injected with safflower oil containing 0.9 micrograms of vitamin D every three days, the accumulation of toxic molecules called beta amyloid is reduced. The mice were also increased vision capabilities.

The researchers found the idea after examining other findings that suggest that vitamin D may reduce the buildup of amyloid plaques in the brain. Stacking is known to be associated with the development of Alzheimer's disease.

Rats fed supplements also experienced a reduction of amyloid in blood vessels, such as aortic vessels. This suggests that vitamin D may also be useful to help prevent various health problems due to age, from reduced vision to heart disease.

"Although vitamin D is contained in some foods such as fish and egg yolks, 90 percent of vitamin D is produced by the skin with the help of sunlight. Many people do not get enough sunlight to produce adequate vitamin D," says Prof. Jefferey.

But Prof Jeffrey warned that researchers need to run clinical trials in humans before we say with confidence that the elderly should start taking supplements of vitamin D.

"It is important to remind people that this is just an experiment. Many people think to take vitamin supplements without consulting your doctor. Taking high doses of supplements can cause health problems," said Clara Eaglen from the RNIB.

How To Maintain Healthy Eyes

A good vision is one key to productivity. Unfortunately, the condition can worsen eyesight as you age. Healthy habits and keep your intake of essential nutrients for eye conditions is maintained.

The outer portion of the eye is the cornea, allowing light spherical bulge can enter the eye. The light then passes through the pupil, transparent space located in the middle of the iris. Behind the lens of the eye pupil are connected to the zonules, which serves to tighten the muscle fibers and loosen the focus.

Light entering through the lens and the retina, the tissue at the back of the eye. Retina then sends the signal through the optic nerve to the brain to translate what is seen by the eye.



Ages 0 - to 30-year
At birth, the lens inside the eye color are generally clear and flexible. Zonules are connected to the eyepiece is still strong.

As you age, the lens becomes less flexible, and zonules are ineffective and require corrective lenses. If the eyeball is too long, there will be nearsighted.

If the eyeball is rather short, then there was farsighted. Each time feeling the change vision, you should immediately see an eye doctor.

To avoid damage to vision, eye exercises eye as directed. Get used to the habit of reading and watching TV sound.

Lutein is found in green leafy vegetables like spinach and kale is one of the antioxidant protective eyewear. Sweet corn, peas and broccoli also contain lots of lutein.

Vitamin A is essential for healthy vision and is usually found in orange and yellow vegetables like carrots and pumpkin. Fruits and vegetables also provide essential vitamins C, other antioxidants are good for the eyes.

40-year age
"This age is when people start to lose the ability to focus vision at close range. Condition is called presbyopia," said Dr. Andrew Iwach, spokesperson for the American Academy of Ophthalmology and executive director of the Glaucoma Center of San Francisco as reported by FoxNews on Tuesday (20/3 / 2012).

The cause is a lens that retracts, harder and zonules are weakened. For correcting vision, use reading glasses. How fast is the occurrence of presbyopia is different for each person.

"If you always have perfect vision, reading glasses may be used only at the early age of 40 years. People who have nearsightedness is more resistant to this disorder and often do not see any change in vision due to age presbiopi reached the end of 40 years," said Jill Koury, assistant professor of ophthalmology at the University DukeEye Center, in Durham, North Carolina.

If you experience nearsightedness, reading glasses may be made at the age of 30 years. Age is also a good time to test a comprehensive vision. The doctor will test the pressure inside the eye and optic nerve check to see if the nerves are still intact.

Age of 50 years and over
At this age, the more the lens hardens and may need to wear corrective lenses is strong. This age are also at risk of experiencing eye diseases as follows:

1. Cataracts.
Occurs when the eye's lens becomes cloudy. More than 20 million Americans have cataract. The main cause of this disease is aging. Smoking and sun exposure also trigger cataracts. If not treated, can lead to blindness.

Researchers in the Blue Mountains Eye found that vitamin B, folic acid and vitamin B12 reduces the risk of cataract formation. Research also shows that consuming omega-3 fatty acids per day could reduce the risk of cataracts.

2. Glaucoma.
The disease is associated with a form of pressure inside the eye which causes damage to the optic nerve. Glaucoma causes loss of vision slowly and eventually lead to blindness. This disease is one of the most common reasons leading cause of blindness worldwide.

3. Damage to the macula.
The macula is a part of the retina. The macula may be damaged due to heredity or environmental factors that lead to impaired vision.

Early signs are blurred vision. Macular degeneration is the leading cause of vision loss in people over the age of 65 years. Exposure to ultraviolet (UV) can accelerate damage to the macula same as cigarettes.

The study found that a combination of vitamin C, beta carotene (vitamin A-forming), vitamin E and zinc can reduce the risk of macular degeneration.

Botox Injections Can Overcome Eye Disorders

Botox is commonly used for cosmetic purposes and skin care. But it turns out, Botox injections can also be used to help treat a rare eye disorder where there are threads that appear in the eyes.

Botox is short for Botulinum Toxin, the toxin produced by Clostridium Botulinum bacteria.

Botox is often used to rejuvenate the face quickly. For example, botox injections in the area around the eyes can eliminate frown lines on the corner of the eye.



Botox is often used to raise eyebrows and reduce excessive sweating in the armpits or palms.

A study involving 33 patients with a disease called keratitis filament, where the dead cells on the surface of the eye together and form a filament or thread. This disorder causes patients to feel as if something is jammed in the eye.

After an average of 2 years of botox injections into the eyelid muscle, 29 patients (88%) experienced improvement in the disease. All patients in the study had previously tried other treatments, including eliminating the filament or take medicine to treat inflammation of the eyes, but to no avail.

Although there are no significant side effects, one of the shortcomings of this treatment is that many patients who require multiple injections in order to effect a new look. On average each patient received four injections. Patients were evaluated every 6-12 weeks, and additional injections will be given if necessary.

The exact cause is still unknown filamentary keratitis. Some of the symptoms that most often accompanies the disease is dry eye. These symptoms are more commonly experienced by women and the elderly.

Because the filaments attached to the surface of the eye, blinking eyes will aggravate the disorder, which causes pain, chronic inflammation and tearing of the eye surface. Finally there a vicious cycle in which the patients responded to reflex blinking when the object is attached to the eye, but it makes the disease worse.

"Breaking the vicious cycle is important to treat cases of filamentary keratitis. Botox can help treat the disease because it reduces the frequency of blinking and eyelid pressure on the surface of the eye," said researchers from Baylor College of Medicine in Houston as reported by FoxNews on Wednesday (11/4 / 2012).

The findings, published the journal Archives of Ophthalmology does not completely cure this mysterious disorder of the eye, but at least it can ease the problems. Experiments and a larger therapeutic treatment necessary to verify the results.

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