Tag Archives: computer

Amazon Fire a New Generation e-Reader is it the iPad Killer

Posted on October 2, 2011 | 2 comments

I’m really excited to try out Amazon’s newest tablet computer the Amazon Fire. I love my Kindle Keyboard however it is not yet the perfect e-reader. In looking at the new specs for the Amazon Fire this new offering may come pretty close. Amazon has also updated it’s entire e-reader line with three other e-readers at much lower price points. The Kindle, the Kindle Touch and the Kindle Touch 3G all of which have no keyboard. The Kindle Fire incorporates a multi touch screen like the iPad, however it is the same overall size as the Kindle Keyboard , albeit slightly thicker with a color screen.

I dont’ really see the Kindle Fire as an iPad2 competitor. This model is really more of a Barnes and Noble Nook killer. The Fire will allow users to access basically everything Amazon has to offer in their store plus Android Apps, streaming music and movies, email and the Web. I do see Amazon coming out with a version that will directly compete with Apple’s iPad, possibly by Christmas 2012. In order to compete with the iPad, Amazon will have to add a few more capabilities such as 3G connectivity, front and rear facing cameras, more internal storage and a microphone. Some people don’t like the size of the iPad and adding those capabilities in both the 7″ and 10″ inch screen sizes will be a great combination.

Not everyone wants an iPad to read books on, frankly I find the iPad much to heavy and large to easily read a book. It would be nice however to be able  to read magazines in color and to easily visit a link in a blog or PDF, the Amazon Fire will allow us to do this very well.

So as soon as I get my hands on an Amazon Fire in November I’ll give a more complete review along with how it may or may not help patients with low vision. The Amazon Fire and the other new Kindle’s will ship on November 15. You can pre-order yours here.

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Posted in Technology, Tips

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Q: Is Computer Use Bad For My Eyes?

Posted on July 1, 2008 | 6 comments

A: No, using computers or any kind of near work will not cause your eyes to go bad. What computer use will do, however, is make any uncorrected visual problems become more apparent. When we work at a computer we typically don’t change our point of gaze for possibly hours.  Before computers were such an integral part of the office workplace we would experience intermittent visual breaks in our focus that gave our eyes a break by turning the page, going to the file cabinet or grabbing another document, etc. With computers everything we need is on the screen. When we finish one task the next is available on the computer. Our gaze rarely strays from the monitor. Even when we take a mental break, we still take that break looking at our monitor checking personal email, youtube etc.

How do we prevent visual strain at the computer? The first is to set up your workstation for enhanced visual ergonomics.  Take occasional breaks from looking at the monitor, once an hour is recommended. If it has been over a year since your last eye exam often a change in glasses is all that is needed.

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Posted in Computer Vision, Eye Care, Refractive issues, Vision

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Visual Ergonomics – Setting Up Your Computer Workstation For Maximum Visual Comfort

Posted on March 17, 2008 | 1 comment

The older we get and/or the more time we spend at the computer the more important it is to set up your work environment for the maximum visual comfort. Generally, from a visual standpoint, laptops, placed on a desk, are set up rather well for the maximum visual comfort. They have us looking down allowing a user that wears bifocals to see the screen through their bifocal and because the screen is directly in front of the keyboard it is close
enough the bifocal, whether it is a progressive lens or a flat top lens, the distance is correct.

A desktop is another matter. Placement of the monitor is very important. The new LCD monitors make it much easier to place them in a positions allowing for easy, comfortable viewing. The monitor should be placed in a position that is typically 20 inches or more away and positioned low enough that when you are looking straight ahead you are looking over the top of the monitor. This last point is especially important for bifocal wearers, especially those 50 or older that rely on the intermediate portion of their progressive or trifocal lenses.

Why is monitor height important? If the monitor is too high you have to tilt your chin up to focus with the intermediate portion of your progressive lens. If you are only at the computer for a few minutes this may be tolerable, however if you sit at the computer for an extended period moving your chin up like this spells a neck ache. If you don’t tilt your chin up to use your bifocal to focus the monitor you are looking though the top part of your glasses instead of the intermediate zone and thus straining your eyes. Neither option is acceptable for any reasonable length of time.

So how should we set up our workstation? First, if your monitor is sitting on top of the CPU, place the CPU under the desk and the monitor directly on the desk. Having a chair with an adjustable seat will allow you to raise your seat thus further improving your position.

Second, never place your monitor where there is a bright light behind it such as in front of a window. Also having a window directly behind you may cause bothersome reflections unless you have an antireflective screen on your monitor.

Third, place the monitor 20 to 30 inches from you. If neither of these options is sufficient or simply not possible computer glasses are an option. Progressive or bifocal computer glasses are generally not necessary for those under 50, however anyone over 50 that spends more than a couple hours a day at the computer will benefit from computer glasses. Most patients simply leave their glasses at the computer. Computer glasses are progressive lenses prescribed so that the top part is set to focus at computer distance, roughly arms length, and the bottom will focus at near, usually 16-18 inches. An antireflective coating will eliminate reflections and also make for better visual comfort.

Lastly, a good, adjustable chair with a foot stool is a great idea.

 

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Posted in computer, Computer Vision, Eye Care, Refractive issues, Vision

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