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Visual Defect / Disturbance News

Choosing the Right Sunglasses

Posted 1 day 3 hours ago by Drugs.com

FRIDAY, June 23, 2017 – You might think of eye problems like cataracts as signs of old age, but one step you can take now will protect your vision for the future – and you can do it with style. We're talking about sunglasses. Your eyes need to be protected from the dangers of UV light the same way your skin does. And just like your skin, it's protection you need every day, not just when you're at the beach. Eye doctors recommend wearing your shades anytime you're outside, although they are extra important in summer and in winter on snowy terrain and at high altitudes. They're also a must any time you're on medication that increases sun sensitivity. Style aside, the most effective are large wraparound sunglasses that absorb 100 percent of UV rays, according to the American Academy of Ophthalmology. For durability and the best visibility, look for scratch-resistant polycarbonate ... Read more

Related support groups: Eye Conditions, Cataract, Sunburn, Sunscreen, Visual Defect/Disturbance, Deeptan, Coppertone

Sharp Eyes Can Make Soccer Players Sharp Shooters

Posted 15 days ago by Drugs.com

FRIDAY, June 9, 2017 – Ever wonder why elite soccer players can seemingly thread the eye of a needle with their passes and shots? According to a new study, competitive players have much better vision than people who aren't athletes. Researchers at Liverpool John Moores University in England assessed 49 soccer players from a professional English Premier League, 31 university soccer players, and 230 healthy non-athletes. The volunteers were tested for visual clarity (sharpness of focus), contrast sensitivity (ability to distinguish objects from their background), and near-far quickness (speed of switching focus from near to far objects). Average scores were better for both groups of soccer players than for the non-athletes. There were no differences between the professional and university players, the researchers said. However, defensive players had faster near-far quickness than ... Read more

Related support groups: Eye Conditions, Visual Defect/Disturbance

Eye Problems May Be Tied to Zika, Lab Study Suggests

Posted 25 May 2017 by Drugs.com

THURSDAY, May 25, 2017 – Scientists exploring how the Zika virus passes from pregnant monkeys to their fetuses believe the infection may be more dangerous to human pregnancies than previously believed. "The results we're seeing in monkey pregnancies make us think that, as they grow, more human babies might develop Zika-related disease pathology than is currently appreciated," said lead researcher Ted Golos. Golos is professor of comparative biosciences and obstetrics and gynecology at the University of Wisconsin-Madison. The researchers came to their conclusions after infecting four pregnant macaque monkeys with levels of the virus roughly equivalent to what they'd get from a mosquito bite. Some monkeys were infected in the first trimester and others in the third trimester of the pregnancies. The scientists found that the virus made its way to each monkey's fetus. "That is a very high ... Read more

Related support groups: Eye Conditions, Viral Infection, Diagnosis and Investigation, Zika Virus Infection, Visual Defect/Disturbance

Untreated Vision Problems Plague U.S. Preschoolers

Posted 5 May 2017 by Drugs.com

FRIDAY, May 5, 2017 – Close to 175,000 American preschoolers struggle with common, but untreated, vision problems, a new report warns. And that figure is expected to rise significantly in the coming years. The analysis projects that the number of cases of uncorrected poor vision in this very young population will jump 26 percent by 2060. "The [current] high proportion of visual impairment that can be easily prevented or treated is astonishing," said study author Dr. Rohit Varma. He is director of the USC Roski Eye Institute at the University of Southern California, Los Angeles. And "it means that there is an urgent need to increase vision screening and the awareness of the importance of preschool vision exam," Varma added. The investigators relied on data from two national studies that looked at vision problems in American kids. The researchers noted that the vast majority of untreated ... Read more

Related support groups: Eye Conditions, Eye Dryness/Redness, Dry Eye Disease, Visual Defect/Disturbance

Docs May Miss Major Cause of Vision Loss in Seniors

Posted 27 Apr 2017 by Drugs.com

THURSDAY, April 27, 2017 – It's the leading cause of permanent vision loss for Americans, but a condition called age-related macular degeneration (AMD) may be going undiagnosed too often, new research suggests. The new study involved 644 people aged 60 and older who were found to have normal eye health in their most recent examination by either a primary eye care ophthalmologist or optometrist. However, when re-examined by a research team at the University of Alabama at Birmingham, about 25 percent of the study participants showed evidence of age-related macular degeneration. Just why initial exams didn't always pick up the condition remains "unclear," wrote a team led by the university's Dr. David Neely. But, "as treatments for the earliest stages of AMD are developed in the coming years, correct identification of AMD in primary eye care will be critical for routing patients to ... Read more

Related support groups: Macular Degeneration, Visual Defect/Disturbance

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

Posted 20 Apr 2017 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 18 Apr 2017 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 Apr 2017 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 11 Apr 2017 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, Wound Debridement, Minor Skin Conditions, Minor Skin Irritation

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, Macular Degeneration, Glaucoma (Open Angle), Votrient, Avastin, Sutent, Nexavar, Pazopanib, Sunitinib, Stivarga, Retinal Disorders, Glaucoma/Intraocular Hypertension, Sorafenib, Cyramza, Bevacizumab, Lenvima, Retinopathy, Inlyta, Ramucirumab

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

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