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Visual Defect / Disturbance News

Is Annual Eye Exam a Must for People With Type 1 Diabetes?

Posted 7 days ago by Drugs.com

WEDNESDAY, April 19, 2017 – People with type 1 diabetes face the risk of developing a disease that can cause blindness, so treatment guidelines have long called for annual eye exams. But new research suggests this one-size-fits-all advice is costly and ineffective, because people with a low risk may need less-frequent screenings while people at high risk may need to be seen more often. Diabetic retinopathy can damage the light-sensitive tissue at the back of the eye and trigger full vision loss, the researchers explained. Screening can catch this disease before irreparable damage is done, but not every person with diabetes faces the same risk. "For example, patients with no or minimal eye changes and good blood sugar levels might not need their next examination for another four years," said study author Dr. David Nathan. "On the other hand, if the patient already has developing eye ... Read more

Related support groups: Eye Conditions, Diabetes, Type 1, Dry Eye Disease, Retinal Disorders, Diabetic Macular Edema, Visual Defect/Disturbance, Diabetic Coma (in DM Type I)

Zika Can Harm Babies' Vision, Too

Posted 8 days ago by Drugs.com

TUESDAY, April 18, 2017 – Although Zika virus is most well-known for the devastating neurological damage it can cause in the womb, a new study reports that some babies infected with Zika also may have lifelong vision impairment. Forty-three babies born in Colombia and Venezuela suffered damage to both eyes after being exposed to Zika through their pregnant mothers, researchers said. Their mothers showed no signs of eye problems. The damage mainly involved scar tissue on their retinas and optic nerves. But, five babies also appeared to have congenital glaucoma, said Dr. Fernando Arevalo, chair of ophthalmology at Johns Hopkins Bayview Medical Center in Baltimore. Congenital glaucoma is a condition that causes increased pressure in the eye, likely because the eye's drainage system didn't develop properly. It can cause damage to the optic nerve, according to the Glaucoma Research ... Read more

Related support groups: Glaucoma, Hydrocephalus, Brain Anomalies incl Congenital, Labor and Delivery including Augmentation, Zika Virus Infection, Visual Defect/Disturbance

Peripheral Vision Varies From Person to Person

Posted 13 days ago by Drugs.com

THURSDAY, April 13, 2017 – Do you feel like you can't ever catch a ball that comes in from your left side? A bad spot in your peripheral vision may be to blame. Peripheral vision is the ability to see things that aren't in the center of your field of vision. A new small study found significant differences in people's ability to detect objects in their peripheral vision. For example, some people were better at spotting things on the left, while others excelled at seeing things on the right. "Everyone has their own pattern of sensitivity, with islands of poor vision and other regions of good vision," said study lead author John Greenwood, from University College London in England. Greenwood and his team gave 12 people a series of perception tests over several years. Overall, the participants were worse at spotting objects in crowded environments when they were above or below eye level, ... Read more

Related support groups: Eye Conditions, Diagnosis and Investigation, Visual Defect/Disturbance

Club Drug 'Poppers' May Pose Eye Dangers

Posted 16 days ago by Drugs.com

MONDAY, April 10, 2017 – For decades, use of the inhaled, legal high known as "poppers" has been common in dance clubs. But new research suggests the drug might pose a danger to club-goers' vision. Poppers are colorless liquids with strong odors that are inhaled for effects such as euphoria and sexual arousal. As the British authors of the new report explained, the prior principal chemical in poppers, isobutyl nitrite, was replaced with isopropyl nitrite after the former was reclassified as a cancer-causing agent in 2006. However, eye problems have now emerged as a side effect since the chemical composition of poppers was changed, the research team said. "The mounting body of evidence [suggests] that poppers can have serious effects on central vision," said a team led by Dr. Rebecca Rewbury, an ophthalmologist at Cheltenham General Hospital in the United Kingdom. Rewbury's team also ... Read more

Related support groups: Substance Abuse, Toxic Reactions Incl Drug and Substance Abuse, Visual Defect/Disturbance

Scientists Spot Gene for Rare Disorder Causing Deafness, Blindness

Posted 24 Mar 2017 by Drugs.com

THURSDAY, March 23, 2017 – Researchers say they have found the genetic cause of a rare disorder that causes children to be born with deafness, blindness, albinism and fragile bones. The syndrome is called COMMAD. It occurs when children inherit two mutations – one from each parent – of a gene called MITF. Each parent is also deaf due to another rare genetic disorder called Waardenburg syndrome 2A. Further research is needed to learn more about the role of MITF during early development and how mutations in this gene result in the development of Waardenburg 2A and COMMAD, said researchers from the U.S. National Eye Institute (NEI). COMMAD stands for the names of a number of conditions that affect people with this disorder. It includes missing tissue around the eye; abnormally dense bones prone to fracture; small or abnormally formed eyes; an abnormally large head; albinism (lack of ... Read more

Related support groups: Hearing Loss, Diagnosis and Investigation, Visual Defect/Disturbance

Many Kids With Diabetes Missing Out on Eye Exams, Study Finds

Posted 23 Mar 2017 by Drugs.com

THURSDAY, March 23, 2017 – Many young Americans with diabetes aren't getting the eye exams that medical experts say they need, new research reveals. "Diabetic retinopathy" is a serious complication of diabetes. It causes the blood vessels in the eyes to leak. This distorts vision, and can eventually lead to vision loss, according to the U.S. National Eye Institute (NEI). The condition often causes no symptoms in the early stages. This makes getting comprehensive, dilated eye exams by an ophthalmologist (an eye M.D.) crucial in detecting the problem, the NEI says. In children and teens, annual screening for diabetic retinopathy should begin as soon as someone is diagnosed with type 2 diabetes, and five years after a young person is diagnosed with type 1 diabetes, medical groups recommend. The current study included more than 5,400 people diagnosed with type 1 diabetes at an average age ... Read more

Related support groups: Diabetes, Type 2, Diabetes, Type 1, Insulin Resistance, Pre-Diabetes, Diabetes Mellitus, Diabetic Retinopathy, Visual Defect/Disturbance

Brain 'Rewires' to Work Around Early-Life Blindness

Posted 22 Mar 2017 by Drugs.com

WEDNESDAY, March 22, 2017 – Blindness at an early age triggers the brain to make new connections that enhance hearing, smell and touch, as well as memory and language, a new study suggests. Researchers used MRIs to scan the brains of 12 people who were born blind or lost their sight by age 3. The scans showed a number of changes in the brains of the people who were blind that weren't present in scans from people who could still see. Changes caused by early blindness "may be more widespread than initially thought," lead author Corinna Bauer, a scientist at Massachusetts Eye and Ear, said in a hospital news release. "We observed significant changes not only in the occipital cortex [where vision is processed], but also areas implicated in memory, language processing and sensory motor functions," added Bauer. Learning more about these connections could lead to more effective rehabilitation ... Read more

Related support groups: Eye Conditions, Retinal Disorders, Diagnosis and Investigation, Visual Defect/Disturbance

Tattoo Artists Risk Serious Pain in the Neck

Posted 21 Mar 2017 by Drugs.com

TUESDAY, March 21, 2017 – That "ink" on your shoulder may have hurt the tattoo artist more than it hurt you. A small study – touted as the first to measure the causes of aches and pains in tattoo artists – points to widespread back and neck problems among them. "There's no such thing as an official 'tattoo chair,' so artists adapt dental chairs or massage tables to make a client comfortable, and then they hunch over the client to create the tattoo," said study co-author Carolyn Sommerich. The result: The artists perch forward, often crane their necks and place considerable strain on the trapezius muscles of the upper back. These muscles are a common problem area when it comes to back and neck pain. Sommerich, director of the Engineering Laboratory for Human Factors/Ergonomics/Safety at Ohio State University, and her colleagues published their findings in a recent issue of the journal ... Read more

Related support groups: Headache, Neck Pain, Visual Defect/Disturbance, Wound Cleansing, Minor Skin Irritation, Wound Debridement, Minor Skin Conditions

For Seniors, Treatment for One Eye Disease May Cause Another

Posted 16 Mar 2017 by Drugs.com

THURSDAY, March 16, 2017 – Drugs that preserve vision in people with the eye disease called age-related macular degeneration might increase the risk of another eye condition – glaucoma, a new study suggests. People who received at least seven eye injections of the drug bevacizumab (Avastin) each year to treat macular degeneration have a higher risk of eventually needing surgery to treat glaucoma, the Canadian study found. But, the researchers aren't suggesting that people forgo these treatments for macular degeneration. These drugs help stave off a previously untreatable cause of blindness in the elderly, and should continue to be used, the researchers said. And, if glaucoma does develop, treatments are available. "Even though there may be a risk here, this doesn't mean you should not be getting injections for macular degeneration," said study lead author Dr. Brennan Eadie. He's an ... Read more

Related support groups: Eye Conditions, Glaucoma, Glaucoma (Open Angle), Macular Degeneration, Votrient, Avastin, Sutent, Nexavar, Pazopanib, Stivarga, Sunitinib, Glaucoma/Intraocular Hypertension, Retinal Disorders, Sorafenib, Cyramza, Bevacizumab, Inlyta, Ramucirumab, Vandetanib, Cabometyx

Stem Cells Hold Promise, Peril in Treating Seniors' Eye Disease

Posted 15 Mar 2017 by Drugs.com

WEDNESDAY, March 15, 2017 – Stem cells may offer new hope for people losing their vision to age-related macular degeneration, but that promise can come with some peril, new research shows. In one report, three older women were permanently blinded at a Florida eye clinic that performed unproven stem cell treatments on their eyes in 2015, said senior study author Dr. Jeffrey Goldberg. He's chair of ophthalmology for the Byers Eye Institute at Stanford University in Palo Alto, Calif. The women all thought the stem cell therapy was part of a clinical trial, but there's no evidence that a genuine clinical trial was taking place, Goldberg noted. "It appears the patients were lured in with the promise of a research protocol and it's not clear that they were actually signed up for any research," Goldberg said. "They were just injected with these cells of some sort." The women, aged 72 to 88, ... Read more

Related support groups: Eye Conditions, Macular Degeneration, Macular Edema, Visual Defect/Disturbance

Health Tip: Don't Contaminate Contact Lenses

Posted 15 Mar 2017 by Drugs.com

-- Germs on poorly handled contact lenses can lead to serious eye infections. To avoid this problem, the American Optometric Association suggests: Don't wash your hands with a creamy soap, which can leave a film on lenses. Never create a homemade saline solution, which can damage lenses. Don't put lenses in your mouth to moisten them. Don't store or wash lenses in tap water. Don't let anyone else wear your lenses. Don't wear contact lenses to sleep if you've been in a hot tub, pool, lake or ocean. Read more

Related support groups: Eye Conditions, Orbital Infection, Visual Defect/Disturbance, Ocular Fungal Infection

Health Tip: Know Your Risk for Diabetic Retinopathy

Posted 6 Mar 2017 by Drugs.com

-- A common form of diabetic eye disease is retinopathy. Caused by damaged blood vessels that feed the eye's retina, it can lead to serious vision problems, including vision loss. The American Diabetes Association says risk factors for diabetic retinopathy include: Uncontrolled blood sugar. High blood pressure. How long you have been living with diabetes. Your genetics. Read more

Related support groups: Eye Conditions, Diabetic Retinopathy, Retinopathy, Visual Defect/Disturbance, Retinopathy Prophylaxis

Kids Should Be Screened for Lazy Eye by Age 5

Posted 28 Feb 2017 by Drugs.com

TUESDAY, Feb. 28, 2017 – Young children should be screened at least once for lazy eye before they turn 5 years old, a U.S. panel of experts says. The U.S. Preventive Services Task (USPSTF) is still advising parents to have their kids screened at least once for lazy eye or its risk factors. Screening should be done when the children are between the ages of 3 and 5 years old. These draft guidelines are an update to 2011 recommendations. Early identification of lazy eye – technically called amblyopia – is critical. If the condition isn't treated by the time a child is between the ages of 6 and 10 years, vision can be permanently affected, the experts said. With lazy eye, the brain and one eye don't communicate properly. Symptoms may include a wandering eye, eyes that don't seem to work together, or poor depth perception, the experts explained. It's estimated that up to 6 percent of ... Read more

Related support groups: Eye Conditions, Visual Defect/Disturbance

Youth With Type 2 Diabetes Often Face Complications

Posted 28 Feb 2017 by Drugs.com

TUESDAY, Feb. 28, 2017 – Young people with type 2 diabetes are much more likely to show signs of complications from the blood sugar disease than those who have type 1 diabetes, a new study shows. While the researchers found that about three in four teens and young adults with type 2 diabetes had at least one complication, only one in three with type 1 diabetes did. Why? "The one big difference in the kids with type 1 and type 2 was obesity. When we controlled the data for obesity, there was no longer an excess of complications for type 2 diabetes," explained lead author Dr. Dana Dabelea. She's a professor of epidemiology and pediatrics at the Colorado School of Public Health, in Aurora. The one bright spot in the findings was that the complications were mostly in the "early or subclinical" stages, Dabelea added. That means there's still time to reverse the damage, she explained. Both ... Read more

Related support groups: Diabetes, Type 2, Metformin, Insulin, Lantus, Diabetes, Type 1, Glucophage, Novolog, Glipizide, Humalog, Insulin Resistance, Glyburide, Lantus Solostar, Levemir, Glimepiride, Novolin R, Amaryl, Novolin N, Prevention of Cardiovascular Disease, Diabetes Mellitus, Humulin N

Scientists Shed Light on Possible Cause of Nearsightedness

Posted 22 Feb 2017 by Drugs.com

TUESDAY, Feb. 21, 2017 – Whether you're nearsighted or not might come down to one particular type of cell in your retina, a new mouse study suggests. Researchers from Northwestern University's Feinberg School of Medicine in Chicago report that this cell is highly sensitive to light and controls how the eye develops. If it malfunctions and tells the eye to grow for too long, images don't get focused in the retina as they should be, the researchers said. "The eye needs to stop growing at precisely the right time during childhood," said lead investigator Greg Schwartz, an assistant professor of ophthalmology. "But for years no one knew what cell carried the signal," he explained in a university news release. "We potentially found the key missing link, which is the cell that actually does that task and the neural circuit that enables this important visual function." The study was conducted ... Read more

Related support groups: Eye Conditions, Diagnosis and Investigation, Myopia, Visual Defect/Disturbance, Myopic Choroidal Neovascularization

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