Bifocal Contact Lenses – One Babyboomer’s Experience

When I was younger I wore contact lenses all the time. I preferred them to glasses, they gave me superior vision to glasses and they were comfortable to wear.

I was prescribed my first pair of contact lenses when I was around 20-years-old (a long time ago I’m one of Australia’s four million baby boomers). They were the old-fashioned hard lenses, they required little care and provided great vision for many years.

My next pair of contact lenses were the newer soft lenses six or seven years later. The soft lenses were revolutionary at the time and didn’t cause the cornea distortion that was an issue with the earlier hard lenses. However, the new soft lenses required a lot of maintenance. They had to be boiled and soaked and were more trouble than they were worth so after a year or so I went back to wearing glasses.

More recently I moved from single focus glasses to correct my myopia to multifocal lenses to deal with my presbyopia (the syndrome that many people experience as they age when they find that their arms aren’t long enough to read a book or a menu!). I’ve been very happy with the multifocal glasses, I wear them all the time as I can’t see a great deal without them and I stayed with glasses until quite recently.

I like to surf and swim when I’m on holidays and we were planning a trip to Tonga and I wanted to be able to go snorkelling and to see the coral and the tropical fish so I thought I’d try bifocal contact lenses with a view to being able to swim and see at the same time!

So off I went to the optometrist. He was very helpful and explained that due to a combination of my myopia, astigmatism and presbyopia that I was unlikely to achieve the sort of vision I received from my glasses with bifocal contact lenses. However, since I mostly wanted the lenses for distance vision I was prepared to give them a go.

He ordered in some disposable contacts and I went back the next day to try them out.

With bifocal contact lenses one lens is designed for distance viewing and the other lens is designed for reading.

It was a little uncomfortable at first to put contact lenses into my eyes again after so many years but I achieved it without too much difficulty. The weird thing was trying to get used to one eye seeing distant objects and one eye seeing close up.

My optometrist sent me away for half an hour to see how I managed. I made it to my local cafe where I enjoyed a cappuccino and even managed to read the paper without covering up one eye! My optometrist was happy with that result so I wore the one pair of disposables (they last two weeks) and drove home wearing my new contacts…

I didn’t wear the new contact lenses the next day, however the day after I thought I’d better try them again and start to get used to them. I needed to build up my wearing time. I had little difficulty the second time although – as predicted by the optometrist – I didn’t have great close-up vision with them. Although, that said, I could manage to read quite well. Perhaps it’s not that I couldn’t see close-up … I think I was still trying to get used to the idea of one eye having distant vision and one eye having close-up vision. The lenses themselves were quite comfortable.

I wore the contacts most days while I was on holidays – I wasn’t completely happy with the level of vision that I achieved with them but they served their purpose of allowing me to swim, snorkel and see at the same time. Most of the time the lenses were quite comfortable. One lens irritated my eye slightly but I think that was only from long wear. The longest time I wore the lenses was for about nine hours one day when I was sailing.

Once the holidays were over and there was no more snorkeling, it was back to work in front of a computer.

I gave the bifocal contacts a go while using the computer – but it just didn’t work for me. The distance wasn’t right. I can read a book okay with the lenses but when I use the computer I’m too far from the screen to focus and I can’t sit any closer to overcome the problem as I have a large monitor.

I’ve seen the optometrist again but there is no other bifocal contact lens solution available for me. I tried them for about a month before abandoning the project. I ordered a new pair of glasses instead!

I’d use the contacts again if I was going on holidays and wasn’t going to be using a computer all the time but I just don’t find them practical for everyday use. I think the issue for me is the inability to focus both eyes at once on any object.

About the only time when I found them useful was when I was reading and that wasn’t the purpose of them – I wanted the bifocal contacts more for distance than for reading. Still, they served the purpose when I was snorkeling and swimming!

About the Author

Alison Stevens in an online author and publisher, an offline editor and an enthusiastic and fit babyboomer. Visit her website Choose Bifocal Contacts to find out if bifocal contact lenses will suit you!

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Domino Computer $68.51 High Quality Content by WIKIPEDIA articles A domino computer is a mechanical computer built using dominoes to represent mechanical amplification of digital signals. Because of the existence of multiple schemes, domino computer will be used in this article as a collective noun, denoting any particular scheme that uses the mentioned base phenomenon (of domino sequences) for building machines equivalent to a computer. This choice of terminology may be somewhat arbitrary, because only few resources write on this topic. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 96 Publication Date: 2010/08/22 Language: English Dimensions: 6.00 x 9.02 x 0.23 inches

Computer Monitor $92.4 Computer monitor. TFT LCD, Cathode ray tube, Viewable image size, Computer display standard, Liquid crystal display, Plasma display, Surfaceconduction electronemitter display, Organic lightemitting diode, Penetron, Computer terminal, Multimonitor, Virtual desktop, Glossy display, Autostereoscopy, Graphics tabletscreen hybrid Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 112 Publication Date: 2009/10/27 Language: English Dimensions: 5.98 x 9.01 x 0.26 inches

Computer Accessibility $152.95 In humancomputer interaction, computer accessibility also known as Accessible computing refers to the accessibility of a computer system to all people, regardless of disability or severity of impairment. It is largely a software concern; when software, hardware, or a combination of hardware and software, is used to enable use of a computer by a person with a disability or impairment, this is known as Assistive Technology. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 242 Publication Date: 2009/11/24 Language: English Dimensions: 5.98 x 9.01 x 0.54 inches

Hypertext Computer $68.51 High Quality Content by WIKIPEDIA articles The HyperText Computer (HTC) has been proposed as a model computer. Built on the HyperText Transport Protocol (HTTP), the HTC is a general purpose computer. In its basic instruction set, every operator is implemented by an HTTP request and every operand is a URL referring to a document. The HTC is a foundational model for distributed computing. Technologies like AJAX at the presentation level and iSCSI at the transport level are so undermining the Fallacies of Distributed Computing that inter and intracomputer communications not carried over IP are looking like special case optimizations. As noted by Ciscos Giancarlo, IP networking is rivaling computer backplane speeds leading him to observe that Its time to move the backplane on to the network and redesign the computer. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 96 Publication Date: 2010/08/22 Language: English Dimensions: 6.00 x 9.02 x 0.23 inches

Seac (Computer) $90.81 High Quality Content by WIKIPEDIA articles SEAC (Standards Electronic/Eastern Automatic Computer) was a firstgeneration electronic computer, built in 1950 by the U.S. National Bureau of Standards (NBS) and was initially called the National Bureau of Standards Interim Computer, because it was a smallscale computer designed to be built quickly and put into operation while the NBS waited for more powerful computers to be completed. SEAC was demonstrated in April 1950, and in May 1950 it went into full production, making it the first fully functional storedprogram electronic computer in the US. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 132 Publication Date: 2010/08/23 Language: English Dimensions: 6.00 x 9.02 x 0.31 inches

Zen Computer $5.19 Anyone who has ever cursed a computer will benefit from Zen Computer, with its soothing approach to living calmly amid the constant upheavals of new technology. In a simple, easy-to-read style, Philip Toshio Sudo shows how the ancient principles of Zen philosophy apply to the modern science of bits and bytes, helping computer novices and the techno-savvy alike deal with everything from computer crashes to major life changes. Divided into short, concise chapters, the book includes a user’s guide to mindful computing, and features "The Seven Rules of Zen Computer." Quotes from thinkers such as Blaise Pascal, Albert Einstein, and Bill Gates illustrate the links between Western science and Eastern philosophy, making Zen Computer accessible to all readers, regardless of their familiarity with Zen. Filled with Zen stories, samurai maxims, and beautiful artwork that combines Japanese brush painting with digital imagery, Zen Computer shows us how the interface between the traditional and technological can be found right here, right now.

Computer Animation $93.99 Computer animation (or CGI animation) is the art of creating moving images with the use of computers. It is a subfield of computer graphics and animation. Increasingly it is created by means of 3D computer graphics, though 2D computer graphics are still widely used for stylistic, low bandwidth, and faster realtime rendering needs. Sometimes the target of the animation is the computer itself, but sometimes the target is another medium, such as film. It is also referred to as CGI (computergenerated imagery or computergenerated imaging), especially when used in films. To create the illusion of movement, an image is displayed on the computer screen and repeatedly replaced by a new image that is similar to the previous image, but advanced slightly in the time domain (usually at a rate of 24 or 30 frames/second). This technique is identical to how the illusion of movement is achieved with television and motion pictures. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 122 Publication Date: 2009/11/25 Language: English Dimensions: 5.98 x 9.01 x 0.28 inches

Computer Operator $60.54 High Quality Content by WIKIPEDIA articles A role within IT, computer operators oversee the running of computer systems, ensuring that the machines are running and physically secured. The traditional role of a computer operator was to work with mainframes which required a great deal of management daytoday. Computer operator positions are distinct from system administrators in that they only require a 2year college Associates degree (similar to nuclear power plant operators and car mechanics), and are paid significantly less than system administrators, and traditionally used operating systems other than UNIX before the 1990s with far more rudimentary operations than a complex UNIX system. The computer operator works in a computer room (now days known as data centers ). The employment of operators has greatly decreased due to modern technology making the more traditional roles obsolete. Most of the duties that operations staff undertake is taught onthejob as the variety of roles is unique to the systems they help manage. Author: Surhone, Lambert M./ Tennoe, Mariam T./ Henssonow, Susan F. Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/12/03 Language: English Dimensions: 6.00 x 9.02 x 0.16 inches

Computer File $70.1 A computer file is a block of arbitrary information, or resource for storing information, which is available to a computer program and is usually based on some kind of durable storage. A file is durable in the sense that it remains available for programs to use after the current program has finished. Computer files can be considered as the modern counterpart of paper documents which traditionally are kept in offices and libraries files, and this is the source of the term. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 76 Publication Date: 2010/07/26 Language: English Dimensions: 5.98 x 9.01 x 0.18 inches