Scientists working on next generation of artificial retinas

McClatchy reported that researchers at the Doheny Eye Institute at the University of Southern California are testing artificial retinas that they hope can restore partial sight to people who've lost their vision to the most common causes of blindness, retinitis pigmentosa (RP) and macular degeneration. RP ruins peripheral vision, while macular degeneration causes a blurred or blind spot in central vision. Both conditions irreparably damage the retina, the light-sensitive patch at the back of the eye that converts images into signals and relays them the brain. Scientists now aim to create sensitive devices that can be implanted in the eye and will let previously blind people recognize faces and read large print. These artificial retinas are still experimental and won't be available for commercial...

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Artificial corneas and retinas

The Miami Herald reports that in developing countries, the need for donor corneas largely exceeds the supply, making the laboratory-developed artificial cornea all the more important. Researchers from Miami's Bascom Palmer Eye Institute have been at the forefront of its development. Eduardo Alfonso, M.D., interim chair of the institute, explained that doctors prefer donor corneas, because artificial ones are still in the testing phase, though results in the past few years have been good. And, like the human cornea, the synthetic cornea is made in the same curved shape. Even though artificial corneas are not yet perfect, Alfonso and his team are also starting new projects, including development of an artificial retina and artificial vision...

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Blind and dream

I have been asked this question before and have struggled to give a rational answer. In the New York Times Really? column, Anahad O'Connor raised the question of whether people who don't see images during the day might see them when they shut their eyes at night. According to studies led by a psychologist at the University of Hartford...people born without the ability to see report no visual imagery in their dreams. Instead, they experience a heightening of taste, touch, and smell. They also report a higher percentage of dreams that involve mishaps related to traveling or transportation, perhaps reflecting one of their biggest daytime concerns: safely finding their way around. Researchers also say that people who go blind before age five rarely experience visual imagery in their dreams. Those...

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Patch versus Drops in treating Lazy eye

In the New York Times Well blog, Tara Parker-Pope wrote that a study published in the Archives of Ophthalmology compares patch therapy for amblyopia with .a weekly regimen of medicated eye drops that essentially work as a patch by blurring vision in the stronger eye.Mitchell M. Scheiman, O.D., FCOVD, of the Pennsylvania College of Optometry in Philadelphia, (now called Salus University) and colleagues, conducted a randomized study of nearly 200 children, and found that giving the eye drops on the weekend worked about as well as wearing a patch for two hours a day. The eye drops, which contain atropine, work by preventing a muscle in the stronger eye from constricting. As a result, when a child tries to read or focus on something close, the...

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Diabetes-related eye diseases may skyrocket over next four decades

The New York Times reports that, according to a study published Dec. 9 in the Archives of Ophthalmology, diabetes-related eye diseases will skyrocket over the next four decades, with elderly Hispanics and blacks hit hardest because of higher rates of Type 2 diabetes. In particular, the report projects that the number of adults 40 and older with diabetic retinopathy -- the leading cause of blindness among working-age adults -- will reach 16 million in 2050, up from 5.5 million in 2005. In addition, the study estimates that the number of diabetics with glaucoma will quadruple to 1.4 million, while the number with cataracts will more than triple to 10 million. Study author Jinan B. Saaddine, M.D., M.P.H., of the Centers for Disease Control and Prevention (CDC), said the findings are a call for...

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Childrens eye exam

A neat video on Fox that describes problems an eye exams detects in children.....

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news no parent wants to hear!

Optometrist finds no evidence computer use by children leads to myopia.Canada's Canwest News reports that the Internet abounds with articles allegedly written by eye-care professionals stating that many ophthalmologists believe increased computer use by children puts them at risk for early development of nearsightedness, or myopia. In fact, these same articles draw little or no difference between myopia, in which far vision is permanently diminished and must be corrected with lenses or laser surgery, and a temporary condition called computer vision syndrome (CVS). Optometrist Eric DesGroseilliers, O.D., of the Ottawa Optometric Clinic, pointed out that, in over 12 years of practice, during which he has examined the eyes of four to five children a day, he has been unable to attribute...

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Medford (OR) Mail Tribune profiles Karen Barlow, a legally blind, independent businesswoman who teaches computer skills to the visually impaired in the Rogue Valley. Barlow's business, Barlow's Computer Training, has contracts with several organizations, including the U.S. Department of Veterans Affairs' Southern Oregon Rehabilitation Center and Clinics.The Mail Tribune adds, Barlow is one of 50 vendors demonstrating adaptive technologies and other aids to employment at this week's "'Options for Success' conference.Sponsored by the Office of Vocational Rehabilitation Services, the seminar's theme is "attitudes for success." Advocacy, referral, work-incentive programs and inspirational speeches fill the sessions, which began Tuesday morning.The goal is to improve the self-esteem and promotional...

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26 percent of Americans have not seen eye-care specialist within past two years.

HealthDay reported that, according to a survey of 1,001 Americans age 18 and older commissioned by the American Optometric Association (AOA), 26 percent of Americans have not visited an eye doctor or eye-care specialist within the past two years, suggesting that many people aren't paying enough attention to their eye health. AOA expert James Kirchner, O.D., recommended a comprehensive eye exam for adults at least every two years. He emphasized that eye exams are even more important for people who already use corrective lenses,who might just assume they just need a different lens prescription, when they really have a more serious problem. With eye diseases and disorders, as with most health issues, early detection and treatment are often the keys to avoiding permanent problems. For example,...

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Painkiller May Prevent Diabetes-Related Retinal Damage

The painkiller pentazocine may help prevent diabetes-related retinal damage that leads to vision loss, according to Medical College of Georgia researchers."The effects of this drug on retinal health are phenomenal," Dr. Sylvia Smith, a retinal cell biologist and co-director of the Vision Discovery Institute at MCG's School of Medicine, said in a college news release.For the study, she compared the retinas of diabetic mice treated with pentazocine and those that didn't receive the drug and found dramatic differences. The findings suggest that the drug and related compounds that bind with the sigma receptor in the eye may help treat the two leading causes of vision loss -- diabetic retinopathy and glaucoma.The study was published in the September issue of the journal Investigative Ophthalmology...

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Visual impairment may be more common in people with diabetes

UPI reports that, according to a study published in the Archives ofOphthalmology, visual impairment appears to be more common in people withdiabetes than in those without the disease. Researchers from the Centers forDisease Control and Prevention analyzed data from the National Health andNutrition Examination Surveys from 1999 to 2004, which included 1,237 adultswith diabetes...and 11,767 adults without the disease. The investigators foundthat people with diabetes were more likely to have uncorrectable visionimpairment than those withoutdiabetes.Tags: Diabetes, Vis...

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Low anti oxidants and blue light exposure may lead to AMD

Med Page Today reported, Some cases of age-related macular degeneration (AMD) may arise from a combination of low plasma levels of antioxidants and exposure to blue light from the sun, according to research in the October issue of Archives of Ophthalmology. Researchers studied 4,753 participants older than 65, who all provided blood samples, underwent fundus photography, and answered a dietary questionnaire. Sun exposure was estimated from participants' self-reported information about work, outdoor activities, use of hats, and eyewear (including contact lenses, glasses, and sunglasses). Complete data were available for 101 participants with neovascular age-related macular degeneration, 2,182 participants with early-stage age-related macular degeneration, and 2,117 controls.Medscape added...

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High Priority, Low Coverage

When asked what conditions would most affect their day-to-day living, a majority of Americans rated loss of eyesight as a 10 on a scale of 1 to 10. Paying for vision coverage though has been another story with only 17% of employees offering any kind of vision insurance.A new report by The Vision Council, Vision Care: Focusing on the Workplace Benefit, examines consumer and business perspectives on vision care and trends in vision care coverage. According to the report, two-thirds of Americans say they would be more willing to get an eye exam if they had some coverage, yet only 17 percent of employers report offering vision insurance. Vision benefits lag behind health and dental benefits, with as many as 44 percent of employers offering dental coverage. "We know that in today's tough economy...

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Crazy fashion accessory

First it was tattoos, then it was body piercing, but the latest fashion craze looks so painful it's literally eye-watering.A Dutch designer has come up with a bizarre fashion accessory – eye jewelery that hangs from wire attached to a contact lens. Eric Klarenbeek has created the eye jewellery that includes items like crystals or flowers. It hangs beneath the eye, and is fastened to the lens by medical wire. It makes the wearer look as if they are crying.I feel sad for the models who have to wear these....

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Researchers to study depression in AMD patients

Age-related Macular Degeneration (AMD) is the leading cause of vision loss in Americans 60 years of age and older. It gradually destroys sharp, central vision, which is needed for seeing objects clearly and for common daily tasks such as reading and driving. AMD affects the macula, the part of the eye that allows you to see fine detail. In some cases, the disease advances so slowly that people notice little change in their vision. In others, it progresses faster and may lead to a loss of vision in both eyesMedical News Today reports that researchers at the Farber Institute for Neurosciences at Thomas Jefferson University and the Department of Psychiatry and Human Behavior at Jefferson Medical College of Thomas Jefferson University were recently awarded a $3.7 million grant from The National...

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Apples Benefits for Health & Vision

In a food column in New Hampshire's Telegraph, dietitian Lynda Murray, R.D., writes about the positive effects eating apples may have on overall health.For example, through the quercetin found in their skin, apples have the unique ability to inhibit the production and release of histamine and other allergic or inflammatory agents. ... Eating an apple a day has been shown to reduce allergic symptoms 46 percent. In addition, the fruit's high flavonoid content...may help protect arteries from harmful plaque buildup. This helps keep cholesterol from oxidizing, and prevents platelets from clumping. Murray recommends that readers eat a diet rich in apples to run a lower incidence of heart disease and stroke. People diagnosed with elevated C-reactive...

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Optical Illusions

As a child I have always loved optical illusions. I still am fascinated by the effects they produce. Here is oneNew Scientist reported that the cause of the above optical illusion, where the spirals appear to flow, has finally been solved.This illusion was made famous by a 1981 painting, Isia Leviant's EnigmaResearchers from the Barrow Neurological Institute in Arizona have demonstrated that the way our eyes constantly make tiny movements, called microsaccades, is responsible for the way concentric circles in the painting seem to flow before onlookers' eyes. For the experiment, the investigators had three participants view the painting while cameras recorded their eye movements 500 times every second. Next, the participants were asked to press...

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Hurler regains sight after 'miracle' diet supplement

The Irish Independent reported that age-related macular degeneration (AMD) is a condition affecting the central part of the retina at the back of the eye. AMD affects one in 10 people over the age of 50, and is the leading cause of blindness in the Western world. Dara Kilmartin, consultant ophthalmic surgeon at the Eye and Ear Hospital in Dublin, Ireland, explained that, by 2020, the number of people with AMD is going to at least double, because people are living longer. Dr. Kilmartin said that the risk of AMD becomes greatest over the age of 65. One in five people over 75 will have AMD. Dr. Kilmartin pointed out that risk factors include age, family history, and smoking. In addition, there is a possible link between AMD and obesity, high blood...

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IOl blocks UV Rays

Intraocular lenses, or IOLs, are the artificial lenses that replace the eye's natural lens that is removed during cataract surgery. IOLs have been around since the 60s, though the FDA gave its approval for one occurred in 1981. Before that, if you had cataracts removed, you had to wear very thick eyeglasses or special contact lenses in order to see afterward, since the natural lens that had been removed wasn't replaced with anything. Traditional IOLs are monofocal, meaning they offer clear vision at distance only, making the need for reading lenses an absolute necessity. New 'multifocal and/or accommodating' IOLs offer the possibility of seeing well at more than one distance, without glasses or contacts.WHAM-TV Rochester, an ABC affiliate, reported that patients undergoing cataract surgery...

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Complementary, alternative medicine becoming more mainstream

I was recently @ the local chapter of Optometrist meeting where the topic of discussion was Complimentary Medicine as applied to Dry Eye and Hormonal Balance. I was very intrigued by what I heard. On the front page of its Health section, the Washington Post reports that the Johns Hopkins Integrative Medicine and Digestive Center...is the latest indication that alternative medicine is making its mark in mainstream healthcare settings.This link with Hopkins is part of a trend toward integrating CAM [complementary and alternative medicine] with conventional medicine. A recent survey of 1,400 hospitals found that 27 percent offered some sort of alternative or complementary treatment, which represents a significant increase from eight percent in 1998. Last year, Hopkins -- a bastion of mainstream...

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Boy with low vision plays offensive tackle on youth football team!

California's San Mateo Daily News reported that 10-year-old Tino Benelli, a student who plays offensive tackle as well as defense for the local Pop Warner team, Bayside Broncos, has albinism, a condition that renders him legally blind. Currently, the boy plays football with low to no vision, because referees do not allow him to wear a doctor-prescribed, tinted face shield, for safety reasons. But, starting next week, he will wear tinted goggles instead. Until then, Tino will play without any light-filtering protection. The Daily News explained that albinism refers to a group of inherited conditions in which people have little or no pigment in their eyes, skin, or hair. They have altered genes that do not make the usual amounts of a pigment called melanin. One in every 17,000 residents in...

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Radiation for Macular Degeneration

One can tel how much time/money and effort is being placed on the problem that's facing the older generation by looking at media exposure and technological advances. Here is another report shown on KGO-TV San Francisco, an ABC affiliate, yesterday.Macular Degenaration is the most common form of vision loss among people over 60. In a clinical trial taking place in San Jose, Calif., "a combination therapy" is "being tested by Amr Dessouki, M.D. For the trial, Dr. Dessouki will first inject patients' eyes with Lucentis (ranibizumab), a drug approved to treat wet age-related macular degeneration, that is proven to block abnormal blood vessel growth and prevent bleeding. Next, Dr. Dessouki will saturate the cluster of blood vessels with a targeted dose of radiation delivered by "a laser device...

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Implantable capsule may help treat dry macular degeneration

Last week, the U.S. Food and Drug Administration fast-tracked a novel treatment for two eye diseases: age-related macular degeneration (AMD) and retinitis pigmentosa (RP). The new treatment, developed by the Lincoln, RI, biotech company Neurotech, is a capsule that's surgically implanted in the eye. Inside are genetically engineered cells that produce a protein that may prevent light-sensitive cells in the retina from dying, thus protecting vision. The device is currently in phase II clinical trials. Retinal cells translate light into electrical signals, which are relayed to the brain. But, in both retinitis pigmentosa and in the dry form of age-related macular degeneration, light-sensitive cells in the retina degenerate over time, resulting...

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Intra Ocular lens

Ohio's Newark Advocate reported that, during cataract surgery, doctors remove the natural lens of the eye and replace it with a new one. Now, a series of premium lenses allows...more freedom for cataract patients than traditional monofocal lenses. Two multifocal lenses -- ReZoom and ReStor -- have concentric circles with different focusing zones. By comparison, the Crystalens is a homogenous lens that has special arms that allow eye muscles to focus naturally by moving the lens back and forth within the eye.The Advocate pointed out that each lens has its advantages and drawbacks. For example, rings in the ReStor and ReZoom lenses can cause some patients to experience a halo effect or glare, which should diminish with time. The single lens...

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Eye drops no more

A tiny coil, which is implanted in the eye, could mean an end to the injections and drops used by thousands of patients with common eye complaints.The spiral-shaped" device, which is inserted through a hollow needle, can be loaded with drugs to treat conditions, such as glaucoma and diabetic macular edema. Called the I-vation, the device is similar to a Slinky toy, and made from a metal alloy. The implant is injected into the eye...in a minimally invasive procedure that takes just 15 minutes.Medications are mixed into a material which coats the device. Then, as the coating slowly dissolves, they are released over a period of up to two years, medicating the eye continuously.Here is a comparison of the device with a quarter:The device's "coiled...

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High Tech for Low Vision

More than 16 million Americans report some form of visual impairment, even when wearing glasses or contacts. That number is expected to double by 2030 as the aging population brings rising rates of macular degeneration, glaucoma, diabetic retinopathy, and other eye diseases.For people who suffer from "'low vision' (technically, worse than 20/60 in the better eye), an ever-growing array of devices can help them maximize their remaining vision and, in many cases, compensate for what they've lost. Still, people who are visually impaired should have a comprehensive vision rehab assessment. This includes a visit with an eye doctor, a technology specialist, and an occupational therapist who can evaluate a person's limitations and goals. While Medicare and private insurance will pay for a doctor's...

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Ghost Town - Comedy

The comedy movie Ghost Town revolves around a dentist (Gervais) who just went through a NDE (near-death experience) during routine surgery and who now see dead people who don't stop asking him for help in contacting the living.Here below the latest international trailer of the upcoming comedy Ghost TownSounds like a must wat...

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# * * Sunglasses Replace the Bag as the Must-Have Luxury Item

Sunglasses at the top rung of the price ladder are in step with trends, changing shapes and colors seasonally to reflect the whims of buyers. This summer, a heightened enthusiasm for aviator and wraparound frames and vintage Jackie O styles is contributing to their status as the luxury accent of the ho...

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Ridiculous Headline of the day!

Hybrid Cars Pose Risk to Blind, Visually Impaired!In continuing coverage from a previous edition of First Look, HealthDay reported, "Because they can be nearly silent, hybrid cars pose a serious threat of injury and death to blind and visually impaired people," according to the American Council of the Blind (ACB). Really, there is no winning in this world. I know, I'm an optometrist, I love helping people see better/feel better. But this was taking it a bit far - my opinion!The council's executive director, Melanie Brunson, explained, "Traditionally, people who are blind or visually impaired learn to rely on their hearing and tactile cues to provide them with information about their environment, which they can use to navigate safely across streets and through...parking lots. In so doing, the...

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Contact Lens + Surgery

You have heard of contact lenses. You have heard of surgery to correct for glasses like Lasik. Here is a new procedure where a contact lens is implanted surgically into the front part of the eye called Cornea."It can take someone who is 22,000- someone who is so unbelievably nearsighted one day- next day drive without glasses," said eye surgeon Dr. Roy Rubinfeld.The hour long procedure is most effective in patients between ages 25 and 45 and meant to be permanent. Cornea surgeon, Dr. Marwa Adi, says permanent contact lens should deliver optically "as long as the eye stays health...

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Illinois mandates vision screening

I'm sure everyone is heard of Matthews Optometrist Jim Black. A licensed optometrist, Black went into politics late in life, but eventually became one of the state's most powerful politicians. After serving two terms in the N.C. House of Representatives in the early 1980s, Black lost three campaigns in a row. In 1990, he was re-elected and soon moved into leadership. He served as speaker of the house a record-tying four terms, including a historic co-speakership with Republican Rep. Richard Morgan.He started a program to help children get screened for vision problems prior to entering the school system. The vision care program began as a mandate on parents to have their children seen by an optometrist before they entered kindergarten. The requirement caused an uproar after Black wrote it into...

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Want to be a Pilot? Read this in Braille

The U.K.'s Daily Mail reports that a job "advertisement for an air traffic controller is being offered in Braille," even though "20/20 vision is a requirement for the job." Officials at the "St. Mary's airport on the Isles of Scilly say they are simply adhering to equal opportunity guidelines." The job listing "states that as well as having excellent vision, the applicant needs to be highly qualified to fulfill the demanding role of guiding aircraft safely into the hilltop airport, which is often fogbound.The controller of Radio Scilly, Keri Jones, said that "the note had attracted widespread ridicule." But, Bill Alker, of the Royal National Institute for the Blind, applauded the move, saying, "We welcome the Isles of Scilly's Council for their good practice, and would hope more employers...

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U think you can dance?

Just watch this dance, choreographed by Nakul Dev Mahajan, "Hollywood's Bollywood choreographer,". He is the founder and artistic director of NDM Dance Productions and Studios in Los Angel...

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Smart contact lens feels the pressure of glaucoma

New Scientist reported, "A contact lens with a built-in pressure sensor that could help monitor" certain eye conditions was recently designed by scientists at the University of California-Davis. Using polydimethylsiloxane, "an elastic, transparent, and gas-permeable organic polymer," the researchers produced "a tiny pressure sensor, which they bent into the shape of a contact lens. Such a device could measure the stress on the cornea surface, and the fluid pressure within the eye to monitor glaucoma and ocular hypertension." Researcher Tingrui Pan explained that in glaucoma patients, rising pressure within the eye changes its shape, "which would deform the contact lens sensor." A prototype model "has an opaque sensor that would impair vision,...

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High Tech Contacts

Researchers @ the University of Washington have reported a system that would generate graphic displays directly to eyes.Illinois ABC affiliate WHOI-TV reported that researchers "are trying to find ways to incorporate complex technology into" contact lenses. One "device under development, referred to as a 'bionic lens,' or 'e-lens,' integrates a miniature electronic circuit and LED lights between layers of polyethylene terephthalate. It's powered through radiofrequency energy transmitted to an antennae incorporated into the lens." This would allow "[c]omputer images [to] be sent to the circuit, enabling the wearer to see virtual displays." It would also allow "a wearer to play games, or surf the" Internet, "without the need for a display monitor."The...

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Snooze Guide

I can't believe that a topic like snoozing would provoke a blog post, but take a look @ this captivating graphic in the Boston Globe:It’s full of tips such as when you’re most likely benefit from a nap, how long to doze off, as well as what you can do to improve your environment for good siesta.So, quit reading this post, and hit ...

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India Poised

I was surfing the web this evening and came upon a video (where else but youtube):These kind of videos always seem so inspiring - however, short that inspiration lasts! I was curious about this whole Tum Chalo To Hindustan Chale concept. Living in the US, I have not kept with all the patriotic themes that run India. So, as I searched for more, I found a couple more. The first one is by Big B. His diction is amazing. Shot in Black and White, this 2 minute clip is captivating.Here is another recited by GulzarI know we have come a long way in terms of technology, economic powers, military might and so on. I sure hope we go on to achieve larger things...

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Udupi Krishna AlankAra

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50 Ways to Help the Planet

50 Ways to Help the PlanetPosted using ShareT...

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Bandiya Vittala

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Madhva Vijaya 2

Here is the next part of Madhva Vijaya. Obviously, I have little to say - I am just not qualified to comment on such a work. So, all subsequent postings will follow with just a l...

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Vadiraja Namane

It is hard to upload larger files to ijigg and stream it directly from this page. So, I have gone to another source. Not ideal, but it works.Here is the first such 'larger' file. Its called 'Vadiraja Nama...

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Madhva Vijaya Intro

Madhva Vijaya or the "The story of the victory of Madhva" is a biography of the great Dvaita philosopher Sri Madhvacharya. It is authored by Sri Narayana Panditacharya, who was the son of Sri Trivikrama Panditacharya, one of the direct disciples of Madhvacharya.Here is an introduction by Sri Bannanje Govindachar...

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Got Milk?

There has been an ongoing campaign to get people to drink milk.Here is website to promote the idea - can you imagine the number of hours spent planing and creating this website?Go play h...

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Scientific Frontiers

Here is a program hosted by Alan Alda of M*A*S*H.Here he talks about technology that helps people afflicted with Retinitis Pigmentosa...

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Photos from Shuttle

I have always been interested in photography. But, I have never enjoyed pictures of space (like pictures of distant stars, nebulae) or of the deep sea (small planktons, bio luminescent fish). Here is an exception - these are pictures of the world we live in. Taken from 200 miles above the earth....

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Ajax Goodness

No matter where I am, I love to follow Indian cricket. Agreed, I have not been able to keep pace with all the changes, but when time permits (and time zones allow), I love to follow events.The google of Cricket has been cricinfo.com. I have found the site overwhelmed at times and the interface a little too cluttered. There are times when I have multiples sites like yahoo, cricbuzz, and a whole bunch of sites @ the same time - some are good with their interface, others better with commentary and so on.I also am closely following Adobe's Airwhich has made its way into eyecare too in the electronic health record (EHR) category - see here where they use Flex technology.So, where am I going with all this? Adobe Goodness + Cricket Passion = Cricket...

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KondAdalalave Ninnaya kIrthi

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GirirAya

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Chandika Yaga in New Jersy

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udupi - a nice video

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Qumana Sucsess?

I have been working to get Qumana to work on my Mac for the last few weeks without success. Finally an email to support led me to a link - downloaded the new version - bam, got it done. This whole open source thing has contnued to amaze me... Tags: Open SourceTags: SoftwarePowered by Qum...

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Krishna Pooja @ Govardhan Temple, Bangalore

Puthige Matha has a Govardhan temple in Bangalore. Since they have simulated a cave, lighting is poor. Here is a video of the arati the...

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