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Image Focusing
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First, what does computer work have to do with eye health?

* For one, computer-induced eyestrain could damage your vision. When your eyes get accustomed to focusing for long periods of time at the same distance, the eye muscles become less flexible, and your vision can worsen, creating the need for stronger and stronger glasses.

* Focused computer work is a major cause of stress. Studies show that when people are concentrated on their screen, they stop breathing as much as they need to and blink about half as often as they should.

* Poor body positions create poor circulation, which means your eyes are getting less oxygen and nutrition than they need to stay healthy. The eyes and brain consume a third of the oxygen, and a quarter of the nutrients our body takes in.

* Computer eyestrain could cause the need for reading glasses in middle age. Especially if you are in your 30s and 40s, doing the exercises below can actually prevent or slow down middle-aged vision loss, or presybyopia, that causes mid-lifers to need reading glasses. People with reading glasses or bifocals have a difficult time at the computer, and often end up with chronic headaches and backaches. Reading glasses and computer work are a bad match.

So spare yourself the trouble by following these simple measures:

* Seven body positions. Most of us know these seven ergonomic Dos, but here they are, for review: (1) Line of sight should be 6 inches above the computer screen; (2) screen should be 18-24 inches from eyes; (3) feet flat on floor, no crossed legs; (4) knees slightly below hips; (5) shoulders down and relaxed; (6) wrists slightly below elbows; (7) fingers slightly below wrists.

* Use your lap. If your desk is too high and your shoulders scrunched, an easy way to give yourself relief, even if you don't do it all the time, is to put your keyboard directly on your lap. For most people, this will place their elbows, wrists, and fingers in the correct position. Remember: even doing this sometimes is better than never.

* Take micro breaks. Every 3-5 minutes, look up from your computer and focus on something across the room. Refocus on your screen, and shift back and forth 3 or 4 times. This only takes several seconds, which is why it's called a micro break.

* Look in the mirror. If you're working in a cubicle or study carrel, place a pocket mirror atop your computer and focus on the reflected image behind you, then focus on your screen. Do this several times.

* Nearsighted? Get computer glasses. If you are nearsighted and wear glasses for driving, reading signs, and seeing faraway, you need special glasses to use at the computer. Get fitted for lenses that allow you to see clearly 18-24 inches away. Keep them with your computer at all times.

* See double. A simple exercise that prevents vision damage caused by eyestrain is to hold your finger 4-5 inches from your nose. Focus on an image at a distance. You should see two fingers. Now refocus on your finger, and you should see two images at a distance. Shift back and forth 8-10 times. This flexes the muscles responsible for convergence, the process by which your two eyes work together to focus on one point.

* Be aware of your peripheral vision. When you are focusing at the computer, 98 percent of your peripheral visual information is blocked out. Without moving your eyes away from the screen, do a mental exercise. What is above, below, and on both sides of your computer? Practice peripheral-vision awareness, which relieves tension associated with concentration.

* Do rapid blinking. Blink quickly for a few seconds. You will be surprised how relieved your eyes will feel as they are immediately lubricated. It's like giving your eyes a drink of water.

* Know the warning signs of computer eyestrain. After a long period of intense concentration, the computer screen goes out of focus. Or, you look up at the clock on the far wall and it takes your eyes a moment to focus. Other warning signs include headache, the screen getting blurry, stinging or dry eyes, pain in the neck, shoulders, or back, clenched jaws, and fatigue.

* Feed your eyes. A healthy diet with lots of water, fresh berries, and green leafy vegetables is the best way to support eye health. In addition, Sussman recommends: bilberry and gingko biloba to increase circulation in the tiny capillaries that feed the eyes; vitamin C, lutein, and the trace minerals magnesium, selenium, chromium, and zinc. A comprehensive and powerful vision formula is EYEMAX-plus, available at http://www.bettervision.com

Martin Sussman is founder and president of the Cambridge Institute for Better Vision, the world's leader in natural solutions for eye care. To find out more tips, go to http://www.bettervision.com/thac_SALE.html You can also find a complete selection of different products and services for all different vision problems at http://www.bettervision.com

Nokia 6500 Slide: Focus on 3G Technology

The Nokia 6500 slide is a 3G mobile handset that hosts a large TFT screen, massive memory storage and high-end connectivity options. The advanced camera capabilities and music player functions keep the users entertained for hours.

The Nokia 6500 slide is a fashionable looking 3G slider phone that comes with an incredibly stylish casing. The handset is a compact and attractive mobile phone that offers user friendly features to suit all the needs of a professional and casual mobile phone user, at large. With high-profile multimedia features, the handset stands ahead of Nokia 6500 Classic although it's not so slim and light-in weight.

The handset is designed keeping ‘fashion conscious’ users in mind. The handset is a good sized 3G phone that measures 96.5mm in height, 46.5mm in width and 16.4mm in thickness. The handset gives a solid and robust feel on hold as it weighs 123 grams. The metallic finish of the handset is very impressive as it adds an extra charm to it. The handset is available in a choice of two colors namely, silver and black.

The wide screen of the phone comes with a brilliant 2.2 inch colour screen. The large screen of the phone can display up to 16 million colours. The Nokia 6500 is an imaging focused 3G phone that is integrated with impressive camera features. The high-quality 3.2 megapixel camera comes embedded with advanced imaging capabilities to ensure perfect image on every click. The advanced features such as auto focus and double LED flash allow the users to brighten up the images taken in darker surroundings. The user can edit the still images using Adobe PhotoShop software to give a finishing touch to an image. Moreover, the Slide allows the users to record the active video footage with the help of video recorder and play the same. The video streaming and 3G video calls make the handset more attractive. Grab the best deal on nokia 6500 slide with free gifts laptops and find more mobile phones with free gifts.

The multimedia mobile handset is endowed with a music player that supports popular music files and formats such as MP3, MP4, AAC, eAAC+ and WMA. The visual radio and FM radio features allow the users to listen their favourite radio station. The advanced visual radio provides the users to view the onscreen information provided by the radio station. The multimedia capabilities of the handset also comprise of a wide range of Java embedded games. The phone comes preloaded with games such as Golf Tour, Rally 3D and Snake.

The comprehensive messaging services such as SMS, MMS, e-mail with attachment, push mail, Nokia Xpress Audio messaging and instant messaging allow the users to stay in touch with others. Not only this, users can connect with others using 3G high-end connectivity options such as Bluetooth and Micro USB. The GPRS and EDGE technology provide the user with fast data transfers.

The quad-band compatible mobile handset provides the users to enjoy seamless worldwide roaming. The user can access the internet for new music or information, as the Slide comes with built in WAP and Opera Mini browser. The Opera Mini browser allows the user to enjoy wireless internet experience at any time. The phone only comes with 20MB of internal memory that can be upgraded with microSD card.

To conclude, it can be said that with its high-profile multimedia features and high-end connectivity options, the Nokia 6500 Slide has attained the attention of professionals as well as casual users.

About the Author

Dylan is professional internet marketer, written several articles and review on Mobile phones,Nokia mobile phones, Dating and more...

how is an image focused on the film?

In a camera, the image focused on the film is ...?

real and upright.
real and inverted.
virtual and upright.
virtual and inverted.
technically a mirage.

real and inverted.

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