Category Archives: Contacts

Next-Generation Contact Lenses May Help Monitor Health

On its website, KDKA-TV  Pittsburgh (1/12) reported that next-generation contact lenses, “called ‘smart lenses’…are packed with circuits, sensors and wireless technology — all designed to keep an eye on your health.” Researchers are now testing contact lenses that may someday “replace the standard blood test,” pointing out that “biomarkers found in the blood — such as cholesterol, sodium, potassium and glucose — can also be found on the surface of the eye.” Currently, one type of smart contact lens already out on the market in Europe monitors eye pressure over the course of a day. Called the Trigger Fish, it can diagnose glaucoma. Contact lenses still in the developmental stage may one day slowly release eye medication over a long period of time.

 

Fine Eyewear and Eyecare optometrists provides advanced vision care to the families of Austin, Cedar Park, Leander, Georgetown, Round Rock and surrounding communities. Stop by and check out our world class optical studio.  Our mission is to help you look and see your best!  We don’t have these contacts available just yet, but we do have just about every other contact made on earth! More info can be found at www.FineEyewear.Net

Sink Drains May Harbor Infection-Causing Fusarium Fungus

HealthDay  (12/29, Preidt) reports,(12/29, Preidt) reports, “Disease-causing strains of the fungus Fusarium are present in bathroom sink drains, which may be a common source of infection in humans,” according to a study published in the December issue of the Journal of Clinical Microbiology. Some species of Fusarium may cause infections in humans that can become dangerous or even deadly, and the problem is made worse by the fact that the fungus is resistant to many anti-fungal medications. A little over five years ago, “Fusarium was the cause of an outbreak of fungal keratitis…among contact lens wearers in the United States.” After testing “samples taken from nearly 500 sink drains in 131 businesses, homes, university dormitories and public facilities in” eight states, researchers found “at least one Fusarium isolate…in 66 percent of the drains and in 82 percent of the buildings.”

 

FDA, AOA Warn Of Dangers Associated With Circle Lenses

The New York Times (7/4, A1, Louis) reported on its front page, “Lady Gaga’s wider-than-life eyes were most likely generated by a computer, but teenagers and young women nationwide have been copying them with special contact lenses imported from Asia. Known as circle lenses, these are colored contacts…that make the eyes appear larger because they cover not just the iris, as normal lenses do, but also part of the whites.” But, Karen Riley, a spokeswoman for the FDA, said, “Consumers risk significant eye injuries — even blindness’ when they buy contact lenses without a valid prescription or help from an eye professional.” And, Dr. S. Barry Eiden, “an optometrist…who is chairman of the contact lens and cornea section of the American Optometric Association, said that people selling circle lenses online ‘are encouraging the avoidance of professional care.'”

Gas Permeable verses soft contact lenses

Unless you already wear GP contact lenses, you may not know about their many advantages over soft contacts — including disposable soft contacts. Here’s a comparison chart to help you see how well these lenses perform in a number of key areas:

GP contact lens
Also known as a gas permeable or RGP (rigid gas permeable), this contact lens is made of breathable plastic that has been custom fit to the shape of the cornea. GP contact lenses are long-lasting, comfortable, easy to clean, and healthy for the eyes.

Soft lens
Made of gel-like plastic, soft contact lenses contain varying amounts of water. They provide good initial comfort for first-time wearers but must be replaced often.

Oxygen Delivery:

GP contacts are made of special polymers that allow your eyes to breathe. Oxygen is absolutely necessary to the health of your eyes.

Some soft contact lenses just don’t allow enough oxygen to get through to your eyes. This can lead to corneal problems.

Visual Acuity…

GP contacts have superior optics. Since they’re firm, they retain their shape better when you blink, so your eyes don’t have to refocus as much. And they are superb for astigmatism or bifocal needs.

When you blink, soft lenses are more likely to distort; your eyes must then refocus, which can be annoying if you’re reading, or detrimental to your performance if you’re driving or participating in sports.

Initial Comfort…

GP contact lenses require a short adaptation period.
Soft lenses are comfortable from just about the moment you put them on.

Long-Term Comfort…

GP contacts require almost no water to maintain their shape, so they won’t pull the moisture away from your eyes.
After a few hours of wear, water-absorbing soft lenses can dry out your eyes, making them itchy and tired.

Durability…
GP contacts are made of a firm plastic, so they don’t scratch or tear. And they stay clear over time.
Made of a gel-like plastic, soft lenses are easy to tear. And protein deposit buildup clouds the lenses over time.

Deposit Resistance…

Their smooth finish and lack of water retention mean they harbor fewer protein deposits from your tear film. This is healthier and more comfortable for your eyes
Since soft lenses absorb more of your tears, they are more likely to contain protein deposits from your tears and harbor bacteria. More deposits are scratchy, too.

Value

GP contacts are much less expensive to maintain; also, they last longer so you don’t have to spend as much on replacements.
Soft lenses require significant spending on cleaning supplies; and they don’t last as long, so you buy new lenses more often.

Gas Permeable RGP contact lens are available at Fine Eyewear & Eye care, located the three corners of Cedar Park, Austin and Round Rock, TX and a short drive from Georgetown, TX. Our address is 2800 E. Whitestone Blvd Suite 210 Cedar Park, TX 78613. See main website for contact information. www.FineEyewear.Net

Contamination may be common in contact-lens storage cases, research suggests.

HealthDay (11/27, Preidt) reported that, according to a study presented recently at an ophthalmology meeting, “contamination is common in contact-lens storage cases.” Researchers from the Soroka Medical Center in Israel conducted tests “of contact-lens disinfection solution in the storage cases” and discovered that “Pseudomonas — a known cause of severe corneal infections — was the most common type of pathogen (41 percent), while fungal pathogens accounted for about 3.3 percent of contamination.” In fact, “some of the solutions tested positive for pathogens every time they were tested. These pathogens can cause keratitis, an often painful inflammation of the cornea,” the complications of which “can lead to vision loss.” The study authors “advised contact-lens users to closely adhere to contact lens care guidelines, including frequent cleaning and replacing their lens case regularly, in order to prevent contamination.”

risks of decorative contact lenses

AOA warns consumers about risks of decorative contact lenses.
Medical News Today (10/21) reports, “With Halloween approaching, the American Optometric Association (AOA) is warning consumers about the risks of wearing decorative contact lenses without a prescription from an eye doctor.” While the Food and Drug Administration regulates “decorative lenses as a medical device, similar to corrective lenses,” some “decorative lenses continue to be illegally marketed and distributed directly to consumers through a variety of sources, including flea markets, the Internet, beauty salons, and convenience stores.” Paul Klein, O.D., chair of the AOA’s Contact Lens and Cornea Section, emphasized that “purchasing contact lenses without a prescription can result in serious eye health and vision damage since consumers are not properly educated on cleaning and disinfecting, nor in proper removal and application of the contact lens.” He explained that “consumers who wear these contact lenses put themselves at risk of serious bacterial infection, or even significant damage to the eye’s ability to function, with the potential for irreversible sight loss.” Additional “risks associated with the use of decorative contact lenses include conjunctivitis, swelling, allergic reaction, and corneal abrasion due to poor lens fit.”

Amoeba infection threatens eyesight of contact lens-wearer

Texas CBS affiliate KENS-TV (10/8, Rigby) reports on the case of Beverly Keller of Castroville, Texas, a contact lens-wearer who is suffering from an eye infection that was caused by an amoeba. Keller traveled “to San Antonio every day…to see an eye specialist,” because the “pain in her right eye was extraordinary.” She “was diagnosed with acanthamoeba,” which is “a tiny parasite living in her cornea,” that if left untreated “could have caused her to lose her eye in a matter of days.” Ophthalmologist Dr. Kenneth Maverick said, “You ask a patient what their degree of pain is, and an acanthamoeba is a 10 out of 10. And that’s because it actually nibbles on some of the nerves in the eye.” The organisms “often come from pools, hot tubs and even well water.” In order to destroy the parasites, “powerful eye drops” are used. “Acanthamoeba infections are more common in the south where the weather is warmer. Overall, the risk is about one in 10,000 contact lens wearers.”

Replace your contacts after swimming in risk areas like mentioned!