Monthly Archives: April 2009

Orthokeratology Featured on ABC News

Posted on April 17, 2009 by | 5 Comments

I came across this video on orthokeratology .  I believe it is from 2002, however it is still very relevant and the information still applies to how ortho-k is a safe, viable, non-surgical option to vision correction.  Studies have also shown that overnight ortho-k may prevent or slow the progression of nearsightedness in children.

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Posted in children, orthokeratology, Refractive issues

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Video Games May Help Your Vision?

Posted on April 8, 2009 by | 2 Comments

Snellen-Eye-Chart, Copyright 2009 The Eye Doc BlogA new study found that first person action games improved the vision of adult video game players.   Two groups of patients were tested.  The first group of patients played Call of Duty and experienced a significant increase in their ability to distinguish different shades of gray (contrast sensitivity function).  The second group used The Sims, which was similar in it’s graphic detail however it is a non action game that does not require precise visual activities such as aiming.

Contrast sensitivity function is a measure of visual acuity (the chart on the wall that uses progressively smaller numbers is another, more common method, shown to the right) uses different shades of gray to evaluate a person’s vision rather than how small of a letter a person can read (the latter is called Snellen visual acuity.  Contrast sensitivity is a much more precise way of evaluating a person’s visual acuity and is more often used in clinical research.

The exciting part of this study is that it has been previously thought that it was difficult to improve the vision in adults.   This study paves the way for possible new treatments of amblyopia in children and the hope of retraining patients that may have lost vision due to some retinal conditions.  The study showed that not all games are created equal in producing this affect and advised caution in recommending games to recommend to patients.  The entire study was published online by the journal Nature Neuroscience.

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Posted in eye, eyecare, Refractive issues, Vision

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The Amazon Kindle as a Low Vision Device for the Visually Impaired

Posted on April 6, 2009 by | 42 Comments

amazon-kindle2As with most doctors we are constantly on the lookout for items we feel may help our patients.  The Amazon kindle has been out for a few years now, however they recently upgraded it.  The Amazon Kindle, holds a lot of promise for patients that have poor vision as a result of macular degeneration, retinitis pigmentosa, glaucoma or any ocular condition that impairs vision.

What I like the most about the Kindle, for patients with low vision, is that it uses a high resolution screen with very high contrast letters, black print on a white background, just like a book, however, most importantly you can increase the size of the letters.  Changing the font size is a great option for patients with impaired vision that want to read books.  As you can see in the photo the Kindle is about the size of a paperback book, however it is as thin as a pencil, weighing in at just over 10 ounces, which is less than a paperback book.

Most new bestseller books are about $10, however many books are less than that.  There are currently 250,000 titles in the Kindle library.  It takes about 60 seconds to download a book wirelessly with the included wireless network (using Sprint’s Cellular Data Network), no WiFi necessary.  The Kindle holds 1500 books, with your library backed up by Amazon, so if you have to make room for a book and years later want to reread it you just download it again at no charge.

I also like the kindle for patients that find it difficult to hold a heavy book or have a hard time turning the page such as those with MS or patients that have had a stroke.  The Kindle also has a text to speech option so it can even read to you.  Subscriptions to major newspapers are available as well.

Let me know what you think.  I would appreciate hearing your thoughts.

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Posted in Ehlers-Danlos, Low Vision, Macular Degeneration

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Bausch & Lomb Launches Multi-Tiered U.S. Consumer Education Initiative To Raise Awareness Of Presbyopia

Posted on April 3, 2009 by | Leave a comment

The naturally occurring vision condition will affect more than 78 million U.S. baby boomers.  Most are unaware that multifocal contact lenses can resolve their vision needs and avoid readers.

ROCHESTER, N.Y. – Bausch & Lomb, manufacturer of the #1 multifocal lens design, has launched its largest integrated marketing initiative with the goal of raising U.S. awareness of presbyopia and multifocal contact lenses. Presbyopia is a naturally occurring vision condition that begins to affect people in their 40s. As the eyes’ internal lenses become less flexible and lose elasticity, the eyes are less able to adjust quickly to rapid changes in focus from distance to near objects, causing blurred vision, most notable at reading distances.

Bausch & Lomb, makers of the Purevision Multifocal Contact Lens,  wish to make the public aware that just because you are over 40 doesn’t mean you need to wear reading glasses with your contact lenses.  Soft, bifocal contact lenses have come a long way in the last 10 years.  Read more …….

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Posted in contact lens, Refractive issues

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