Sunday, October 16, 2011

Laser Eye surgery


What is laser eye surgery?

Local anaesthetic drops are placed in the eye being treated. A knife is used to cut a flap in the cornea. A hinge is left at one end of this flap. The flap is folded back to reveal the middle part of the cornea. Pulses from a laser vaporise a portion of this and the flap is replaced.
An eye patch is usually worn over the treated eye for 24 hours.
Both eyes can be treated on the same day, but your consultant should outline the risks. In order to reduce the risk of cross contamination should complications arise, each eye should be treated as separate procedure.

Why is it carried out?

Doctors use a laser to permanently change the shape of the cornea, the clear covering over the coloured iris, and the lens, which is just behind the pupil of the eye. People need to wear glasses for different reasons. Some people are said to be short-sighted or myopic. This is due to the cornea being too steeply curved or the eye longer than normal. Therefore, light rays fall in short of the retina - the area at the back of the eye that interprets the image - and results in blurred distance vision.
Other people are long-sighted or hyperopic because their cornea is too flat or the eye is too short. This means that the light rays focus too far beyond the retina. Others have a condition where the cornea is oval shaped rather than spherical, called astigmatism. This produces two different focal points which can blur images at all distances.
Laser surgery to reshape the cornea can help to correct these problems.

Risks of laser eye surgery

Complications occur in less than five per cent of cases, according to the Royal College of Ophthalmologists. Some people have a problem with dry eyes in the months after surgery and artificial tear supplements might be needed in the long term.

Many patients have experienced glare or halo effects when night driving, particularly just after treatment. This is more likely the higher the correction that has been made, but is rarely severe. In rare cases, excessive thinning of the eye wall can cause the shape of the eye to be unstable after treatment. Severe loss of vision is very unusual, but some patients could require corneal surgery or hard contact lenses to restore vision, it said.

Is it a common procedure?

Yes. Private treatment usually costs £1,000-£1,500 per eye and is available at some NHS hospitals. It is important to check the qualifications of the surgeon performing the operation as the Royal College of Ophthalmologists recommends that the doctor should be a fully trained ophthalmic surgeon and also have undertaken additional training in laser eye surgery. Some surgeons may also be NHS Consultant Ophthalmic Surgeons which means they will have completed at least 8 years of training and also be familiar with a wide range of eye diseases and problems.

Long-term impact of laser eye surgery

Most patients have a reasonably comfortable period after surgery and are back at work within a few days to a week. Depending on the vision correction attempted, driving may be unsafe for one to two weeks. Tinted glasses with ultraviolet protection are needed when out in the sun for the first three months.
Laser surgery will not be able to cure age-related presbyopia and the need for reading glasses that people often develop in their mid-40's. This is because presbyopia is not to do with a problem with the cornea. Instead, it occurs when the lens becoming less flexible with age.
a post by BBC

Thursday, September 22, 2011

The Girl with X-Ray Eyes

The Girl with X-Ray Eyes

Natasha Demkina claims she has an extraordinary gift that means she can quite literally see right through people. Her story sounds like it has come straight from the pages of a science fiction comic book, but apparently Natasha is able to look into people’s bodies and correctly diagnose their medical problems, without any help from ultrasound or x-ray equipment.
Natasha’s mother, Tatyana Vladimovna, says that her daughter appeared to be like any other child as she grew up, although she was mature for her age. Natasha learned to do things more quickly than other children; she was able to talk at just six months and by the time she was a year old she could recite Pushkin. At three she had learned the alphabet and mastered how to operate a snow mobile.

Sunday, May 22, 2011

Ratan TATA a real Ratan(diamond) for INDIA <- its sensational


Ratan Tata’s purported remarks expressing surprise at fellow industrialist Mukesh Ambani living in a billion-dollar mansion in Mumbai has sparked off a controversy on Sunday



The Tata group Chairman was quoted by London’s Times newspaper as having said, “It makes me wonder why someone would do that. That’s what revolutions are made of. The person who lives in there should be concerned about what he sees around him and [asking] can he make a difference.

“If he is not, then it’s sad because this country needs people to allocate some of their enormous wealth to finding ways of mitigating the hardship that people have.”

Mr. Tata, who bought the British steel maker Corus and car manufacturer Jaguar Land Rover (JLR) said, the widening gap between the rich and the poor in India worried him.

“We are doing so little about the disparity. We are allowing it to be there and wishing it away.”

However, Tatas disputed the reported attribution to its chairman, saying that the comments were taken out of context and factually incorrect.

“We would also like to clarify on stories in Indian media regarding Mr. Ambani’s home. The report is out of context and factually incorrect. Mr. Tata’s comments on wealth are in the larger context of the growing disparity in the society.
“There have been words, individuals and statements that have not been mentioned by Mr. Tata during the course of the interaction which are being attributed to him.

“We have already registered our protest with the concerned publication and will continue to pursue measures against the incorrect impressions being sought to be created,” a spokesperson of Tata Sons said in a statement.

16856

Sunday, May 15, 2011

Top 10 Awesome Android Features that the iPhone Doesn’t Have



Top 10 Awesome Android Features that the iPhone Doesn’t Have

HAhhahafinally found the top 10features by our very own android that iphone... so called ios doesnt have...

Number 1: Alternate Keyboard" From text predictors like Swiftkey to the innovative like Swype and the downright adventurous like 8pen, you have a lot of different keyboard choices on Android. Typing on a tiny phone keyboard isn't anyone's idea of fun, so it's great that Android provides so many options to make it as painless for people as possible, and super easy to install. The iPhone has other keyboards, but they're usually separate apps that require you to import text to another program—it's just the kind of system-level functionality that's hard to get around.
2:Automation -> One of the most powerful, useful Android apps around is Tasker, the automation program that lets you turn your phone into a superphone. You can turn settings on and off for certain applications, by location, time of day, and pretty much any other condition you can think of. With the right commands in place, Tasker can access the deepest and darkest settings on your phone, which is something you just can't do on other platforms. Be sure to also check out our second list of Tasker setups, three handy Tasker profiles from our readers, and how to roll your own "Find my iPhone" for Android. Similar apps like the battery-saving JuiceDefender would also fall into this category.

3: Custom Home Launchers: ure, they take up a bit of space, but there's no substitute for the convenience of having a big weather widget right on your home screen, or a music widget to show you the currently playing track. Even more useful are the to-do list widgets, that take an "in your face" approach to productivity, which is not only effective but necessary from people, as they don't require you to actually look for your to-do list—they're always reminding you of what you need to do. If you've jailbroken, you can get widget-like apps for the iPhone, but you can only put them on your lock screen—not the actual home screens that you're always swiping through.

4:Removable Storage and Battery:hahaha

5: Wireless App Installation: Browsing for and discovering new apps should be fun, not challenge to make it through a tiny app store with your sanity intact. The App Store and Cydia App Store aren't exactly fun to browse on your phone, but you either have to download apps on your phone or plug it into iTunes to sync them all over. With the new Android Market, or with third-party sites like AppBrain, you can find a cool app, hit the install button, and it'll be on your phone the next time you pick it up. It doesn't get much more convenient than that.


6:Custom ROMs:While there are a lot of third-party apps that give you advanced features on Android, one of the coolest parts about the entire OS being open source is that people can take it, tweak it all over, and install their version instead of the one that comes with your phone. Whether it's the feature-filled CyanogenMod or the interface-overhauling MIUI ROM, there's little limit to how much you can tweak your Android experience. As with launchers, these give you a lot of system-level tweaks that you just wouldn't be able to get this easily on other platforms—and it puts them easily within users' reach. Whether it's tweaks that speed up your phone or features like FM radio, custom ROMs are without a doubt one of the biggest advantages to Android's openness around.


7 Controlling Your Phone From Your Computer:This one's a little more out there, but we've featured quite a few apps that let you actually control your Android phone from your PC—whether you just want to send texts from Chrome or access any of its other functions right from a web browser. Yes, you can VNC into your iPhone, but it's not the same as using a separate app that accesses its baser functions.


8True App Integration Google Voice may finally be available for the iPhone, but the experience will never be the same as it is on Android. Other iPhone apps always direct you to the default dialer and visual voicemail apps, so even if you want to use Google Voice full time, you have to manually navigate it to yourself. On Android, apps like Google Voice integrate directly with the operating system—if you want to make calls with Google Voice, every call you make from the phone's dialer goes through Google Voice. When you click on a phone number in your browser or in Google Maps, it goes through Google Voice instead of sending you to the wrong dialer. True app integration like this makes using custom phone, SMS, voicemail, and even browser apps absolutely seamless on Android, which is something you won't find on the more locked-down iPhone platform.


9:Say what you want about Flash, but it's everywhere you go, and when you're forced to view the web without it, you realize how much you actually rely on it day-to-day. Whether its accessing fully Flash web sites, watching Flash videos, or playing games like the ones on Kongregate, having Flash installed on your phone and tablet let you access a lot of things you otherwise couldn't have. We may grimace when we hear its name, but it's too prevalent to go without. It just feels like you don't have the whole web at your fingertips.

10 Widgets:Sure, they take up a bit of space, but there's no substitute for the convenience of having a big weather widget right on your home screen, or a music widget to show you the currently playing track. Even more useful are the to-do list widgets, that take an "in your face" approach to productivity, which is not only effective but necessary from people, as they don't require you to actually look for your to-do list—they're always reminding you of what you need to do. If you've jailbroken, you can get widget-like apps for the iPhone, but you can only put them on your lock screen—not the actual home screens that you're always swiping through.