Friday November 24, 2017

Headache Due to Spending Long Hours in Front of Computer? Here’s how you can protect your eyes!

Staring at computer/ mobile screens would not permanently damage your eyes, but it would make you suffer the condition where your eyes would be able to focus well only on close objects, whereas more distant objects would appear blurred

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Protect your eyes by the following steps
It is important to protect your eyes from the strain caused by spending long hours in front of screen. Pixabay
  • People who spend 7 or more hours in front of the screen experience the symptoms of dry eye
  • All these symptoms fall under the category of Computer Vision Syndrome (CVS)
  • These seven simple things when taken care of, will help protect your eyes

New Delhi, August 2, 2017: You might not like tears, but you must still be thankful for what all that they do for your eyes. Tears keep your eyes clean and lubricated and therefore healthy. People who do not produce enough tears suffer from a condition called dry eye, in which not enough moisture is produced to lubricate the surface of the eyeball, leading to pain, itching and blurred vision. According to a new report, people who happen to spend 7 or more hours in front of the screen experience similar symptoms.

All these symptoms that one experiences as a consequence of sitting for long hours in front of the screen, fall under the category of Computer Vision Syndrome (CVS). It isn’t one problem but includes a whole range of eye related problems.

Staring at computer/ mobile screens would not permanently damage your eyes, but it would make you suffer the condition where your eyes would be able to focus well only on close objects, whereas more distant objects would appear blurred. If a little awareness could save your eyes, there’s no logic in choosing ignorance.

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Here are seven simple things which are capable of protecting your eyes, and only ask for a little attention in return:

Mission No Glare: Always make sure that there isn’t too much indoor light since too much light competing with the light of the device can create glare on the screen. One can also use an anti-glare screen, or add an anti-reflective coating to their glasses. Anti reflective coating helps in reducing the glare by minimizing the amount of light reflected from the lenses of the eyeglass.

Adjust the screen display: The perk of adjusting the screen display by increasing the contrast, so that the brightness feels comfortable is underestimated. A cooler, gray background is always better than a bright white background. Eye strain is often the result of excessively bright light around the screen if a little adjustment can help, then why not?

Blink often: Staring at screens make us blink less frequently and we tend to open our eyes wider than we do when performing other tasks, which results in faster tear evaporation, giving way to dry eye. An average person’s blink rate is about 15-20 times per minute, which decreases up to half when the eyes are fixated on some screen. The easiest way to reduce dry eye problem is by blinking often, consciously and voluntarily.

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Regular breaks: Your computer and mobile devices aren’t going anywhere. An email can wait and you’re not going to get the most important call of your life in the very time you decide to take a pause. These reasons are convincing enough to make you stop your work for a while and go out and have a coffee instead. Who chooses pain and headache over coffee?

The 20-20-20 rule: An extension of ‘Regular breaks’ is a systematic system known as the 20-20-20 rule, where one takes regular breaks every 20 minutes or so, and which when implemented can work wonders. This would provide your eyes the much-needed rest and prevent fatigue and strain causing headache and blurred vision. Even closing your eyes for a bit, every 20 minutes, can provide them the much-needed relaxation.

Keep screens away from the bed: Almost all digital screens are backlit and emit blue light, or high-energy visible (HEV) light wavelengths, which are believed to cause irritation in the eyes. Blue light also suppresses melatonin, the sleep hormone, causing an artificial feeling of wakefulness. Fluctuations in the level of melatonin influence our desire to stay awake, making it important to keep the screens away from the bed.

Regular checkups:  There’s no alternative to this one. People with myopia, or nearsightedness, and other vision issues like hyperopia, astigmatism, and presbyopia are at increased risk, making checkups for them an unavoidable option, however, it is important for everybody to stay updated with their eye status, in order to ensure healthy vision.

-by Samiksha Goel of NewsGram. Twitter @goel_samiksha


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Zika Virus Infection may cause lasting Eye Diseases, also posing a wider Threat in Human pregnancies: Study

Studying Zika infection in monkeys may help follow the progress of the mosquito-transmitted infection and associated health problems in humans

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New York, May 26, 2017: Zika virus infection may cause lasting eye diseases and may be thus posing a wider threat in human pregnancies than previously thought, scientists have found.

The study, conducted on rhesus monkeys, showed that although the foetus affected with Zika virus did not show its typical symptoms such as shrunken heads or microcephaly, unusual inflammation in the foetal eyes, in the retinas and optic nerves, in pregnancies infected were observed.

“Our eyes are basically part of our central nervous system. The optic nerve grows right out from the foetal brain during pregnancy,” said Kathleen Antony, professor at the University of Wisconsin-Madison.

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“It makes some sense to see this damage in the monkeys and in human pregnancy — problems such as chorioretinal atrophy or microphthalmia in which the whole eye or parts of the eye just don’t grow to the expected size,” she added.

In the study, published in the journal PLOS Pathogens, the team infected four pregnant rhesus macaque monkeys with a Zika virus dose similar to what would be transferred by a mosquito bite.

The findings revealed that the virus was present in each monkey’s foetus.

“That is a very high level — 100 per cent exposure — of the virus to the foetus along with inflammation and tissue injury in an animal model that mirrors the infection in human pregnancies quite closely,” Golos said.

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Moreover, three of the foetuses involved had small heads, but not quite so small as children born with microcephaly.

Studying Zika infection in monkeys may help follow the progress of the mosquito-transmitted infection and associated health problems in humans, the researchers said.

“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,” Golos noted. (IANS)

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Eye sight detection becomes easy with Foldable Phoropter now

The test on the device was carried on 100 people and it showed a strong correlation between its reading and those taken with a clinical setting with the usual ophthalmologist tools.

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Hyderabad, March 17, 2017: The novel innovation in the field of medical has been regarded as a boon for billions of people facing eye impairments. The invention is called ‘Foldable Phoropter’- a mere foldable cardboard tube which makes the eye testing much simpler in the developing countries. The device is created by the Srujana Center for Innovation, L V Prasad Eye Institute (Hyderabad).

The disposable, open-source device is a palm-sized invention conventionally used as an ophthalmologist’s tool to sift for refractive errors like short or long sightedness. The invention inspired by Google Cardboard and Dr. Manu Prakash’s Foldscope.

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The sole intention of the project is to help diagnose the errors quickly and cheaply in the less financially efficient areas. Ashish Jain, an industrial designer with Srujana Center for Innovation at L V Prasad Eye Institute along with the institute’s team of optometrists, vision scientists and engineers have originated a unique paper device which can detect a refractive error – one of the most common causes of blindness.

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As per the World Health Organization, 153 million live vision impairment to uncorrected refractive errors. Visual impairment can have ill-effects on children and adults such as dropped educational and employment opportunities and diminished quality of life. The further findings insinuate that approximate of 670 million people worldwide do not have spectacles or adequate correction, covering 517 million with near vision impairment and 153 million with distance vision impairment. Out of 517 million people without spectacles for near vision correction, 410 million are dissuaded from performing near-vision tasks and activities.

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The Folding Phoropter is aiming to rural low-income communities.The phoropter appears like a telescope and is measured using the most common refractive error ranges. The test on the device was carried on 100 people and it showed a strong correlation between its reading and those taken with a clinical setting with the usual ophthalmologist tools. The device is easy to assemble and anyone can build their own following the instructions.

USAGE OF FOLDABLE PHOROPTER

http://www.youtube.com/watch?v=MLYuTMFo2Os

The lenses require being located in their assigned positions and folded along the lines. The two parts line up inside one another, resembling a telescope. The patient needs to look through the device from the fixed distance and move the outer chamber inwards until the image just comes into focus.

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Prepared by Naina Mishra of Newsgram, Twitter @Nainamishr94

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Cases of Glaucoma show a rising trend in India, can be caused by Smoking: Doctors

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A patient suffering from Glaucoma, VOA

New Delhi, March 19, 2017: As cases of glaucoma show a rising trend in India, ophthalmologists blame smoking as one of the major reasons behind it.

Besides glaucoma, several other eye diseases, such as age-related macular degeneration (AMD), can also be caused or aggravated due to smoking, but only 10-20 per cent people are aware of these facts, they said.

Stating that lifestyle matters a lot for eye-related diseases, the doctors said research papers have proved that smoking increases the risk of AMD and glaucoma.

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“Smoking is very much connected to age-related macular degeneration (AMD), cataract, glaucoma, diabetic retinopathy and dry eye syndrome,” Kamal B. Kapur, from Sharp Sight Group of Eye Hospitals, told IANS.

Kapur said that people who do not smoke, but become passive smokers, also are prone to develop AMD.

Glaucoma is a disease that damages eye’s optic nerve, while AMD causes loss in the centre of the field of vision. In dry macular degeneration, the centre of the retina deteriorates. With wet macular degeneration, leaky blood vessels grow under the retina.

AMD begins as a loss of central vision which makes it difficult to read and see fine details. Over time, vision loss increases significantly.

Mahipal Sachdev, Chairperson and Managing Director of city-based Centre for Sight, said: “Vision loss due to smoking does not have any symptoms like many other eye diseases, but a dilated examination can detect eye diseases in their early stages before vision loss occurs.”

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Some other types of eye-related problems caused by excessive smoking include cataract.

“People, who smoke in excess like 10 cigarettes a day, have up to three times the risk of cataract as non-smokers. Similarly, there is a strong nexus between glaucoma and smoking,” said Sachdev.

The doctors said that there is a special need for awareness among people about the strong link between smoking and vision loss.

“In the first place, smoking has to be brought down, which actually leads to the damage of not just lungs and throat but gradually, the eye nerves also get damaged,” said Samir Sud, a city-based ophthalmologist.

Talking about the dietary habits, he said that nutrients such as Omega-3 fatty acids, zinc and vitamins C and E might help ward off age-related vision problems such as macular degeneration and cataract due to smoking. (IANS)