Wednesday, September 13, 2006

Computer Vision Syndrome

Computer Vision Syndrome

As the use of computers become more common each and every day, with some people spending literally hours staring at the computer monitor, it is easy to see how we can begin to have trouble with our eyes. Computer Vision Syndrome, also known as CVS, is estimated to affect around fifty-four million adults and children within the United States.

What happens is this, as we spend more hours looking at the computer screen (typically two or more hours) the eyes begin to suffer. The brain and eyes react in a much different manner when looking at characters upon a computer screen, than when looking at printed items on a piece of paper. The characters on a piece of paper have specific character, edges, and contrast. Those upon a computer screen, do not. They have bright centers and towards the edges, the intensity diminishes. This creates a problem within our eyes because the eyes are not able to focus on the characters.

As we attempt to focus on what we are seeing, our eyes tend to move involuntarily to an RPA or a resting point of accommodation, creating the need for eyes to try to refocus again. All of this work on the part of our eyes creates burning and fatigue of the eyes the longer we look at the computer screen.

There are symptoms that come along with Computer Vision Syndrome, usually after spending around two hours or more on the computer, more specifically the screen, you will undoubtedly begin to experience at least some of these symptoms such as pain in the shoulder or neck, blurry or double vision, tired or burning eyes, inability to keep focus, or even headaches. Within a child, if they use the computer for prolonged periods of time, their eyes will become stressed and ultimately have a great impact on the development of their vision.

People with CVS or Computer Vision Syndrome, often have a hard time with maintain productivity at work or school. When you suffer from CVS you often have the inability to remain focused and may suffer from some of the symptoms which could lead to loss of comfort, accuracy may suffer, and productivity loss all at the same time.

Overall, Computer Vision Syndrome is not a pleasant thing and should not be taken lightly. In further articles, within the CVS series, we will discuss what you can do to eliminate the problems and provide you with solutions to avoid computer vision syndrome.

As always, Hope this has been helpful!
Feel free to post any comments or questions

More on CVS soon!

Ben…aka MobileEyeGuy
www.mobileeyeguy.com

Tuesday, August 29, 2006

Short-Corridor Progressive Lenses

This one is for the baby boomers.
If you wear eyeglasses, then I am sure that you have noticed by now that frame styles are getting smaller and smaller compared to the eighties when it seemed frame manufacturers were trying to see how big they could make them.
Well how does that affect us bifocal wearers, especially those who wear
Progressives lenses?

I thought the best way to teach my readers on this subject would be to post an actual article that is used for Continued Education for Professional Licensed Opticians.
I read this , then had to take a test on it to get a Continued Education Credit, which is reqired in order for us Licensed opticians to stay Certified.
It is kind of long, but full of great info, I think you will be able to learn a lot about lenses, and about how you should be treated from your optician when deciding on your eyewear options.

It was written by: Judy M. Canty, ABOC

If you've heard it once, you've heard it a thousand times. Ours is a culture that places a high value on youth or at least the appearance of youth. It's reflected in the way we dress, the music we listen to, the cars we drive. We wear eyeglasses as much to make a statement about our attitude as we do to actually see comfortably.

Short-corridor progressive lenses can provide solutions to any number of eyewear design issues. But, as with any other lens category, the more you know about it, the better prepared you will be to advise your customers.

In the beginning, there were progressive lenses. They were designed to provide seamless vision from distance, through intermediate to reading areas. The early designs were somewhat less than satisfactory. Uncomfortable amounts of unwanted astigmatism at the lens peripheries coupled with relatively narrow transitional corridors and reading areas limited their acceptance to only the most dedicated and motivated of wearers. However, as lens design technologies became more sophisticated, progressive addition lenses became increasingly "user-friendly." Eyecare professionals now had lens designs they could recommend and use with greater confidence. Combine these more sophisticated lens designs with the coming of age of the Baby Boomer generation, add a healthy dash of fashion savvy and the market for progressive addition lenses exploded. Then, in the early 1990s frame sizes began to shrink and those wonderfully designed progressive addition lenses couldn't function as they were designed to. The transitional corridors were too long and the reading areas were lost in the edging process. So, we began to "bump" addition powers, essentially forcing wearers to read in the transitional corridor rather than in the near power area. The corridor is too narrow to allow a comfortable reading area, so customers once again complained about the difficulty in using progressive addition lenses.


In 1999, the first short-corridor progressive lens was introduced to the marketplace. It was designed for the new, smaller frame styles, with a shortened corridor allowing the near vision and reading areas to remain largely intact. Rather than the average 17mm corridor length requiring a 20 to 25mm fitting height, it sported a 13 to 15mm corridor depending on the reading power, and allowing for a minimum fitting height of 17 to 19mm. Eyecare professionals were back on track again with the first real solution for their fashion conscious presbyopes. Almost immediately, lens manufacturers began lowering the minimum fitting heights for their current progressive lenses. The justification for this decision was that, in many cases roughly 85 percent of the addition power was reached at this point on the lens. 85 percent sounds good until you realize that a +2.00 add power was now an unacceptable +1.70. At best, it was a stopgap measure allowing their lens designers time to create the next generation of progressive addition lenses.


In less than three years, a number of lens manufacturers have released short-corridor progressive lenses in a variety of materials. Conventional plastic materials have long been the lens material of choice, however newer mid- and high-index materials as well as polycarbonate, are rapidly gaining in popularity, as are additional lens treatments such as variable tints and anti-reflective coatings. A small number of short-corridor progressive lenses are also available in crown glass. Most lens manufacturers provide laser-etchings on the surface of their lenses to help the optician properly identify manufacturer, lens design, material, addition power and location of the optimal reading area. The wise eyecare professional will keep abreast of these new designs since many of the major manufacturers are advertising them directly to the consumer. Your customer will need your expert assistance in sorting through all the choices and selecting the best lens for their needs.


Short-corridor progressive lenses are designed to meet a specific combination of needs. However you choose to determine your customers needs and wants, with a "lifestyle questionnaire" or through general conversation, matching customer to lens style is critical to their success as a wearer. "How do you use your lenses?" may sound like a dumb question, but it really isn't. Yes, they use them to see, but how? Both fashion and function motivate the best possible candidate. They have taken great pains to remain fashion-forward and are conscious of the image they project. They have come to the realization that they need help with reading and close work, and are ready for their eyecare professional's help. Co-workers, friends or family may influence them, especially their kids, with their frame selections and now need your help in combining all those needs and wants into fashionable and functional eyewear. Short-corridor progressive lenses are also an excellent solution for those customers whose facial structure requires a small frame.

TALKING TO YOUR CUSTOMERS ABOUT SHORT-CORRIDOR PROGRESSIVES

This new lens category means that as an eyecare professional, we need to re-think how we present the idea of progressive lenses. A single generic description of the advantages of progressive lenses is no longer a good idea. Begin by reading the technical literature provided by the manufacturers. Double check that information with other sources such as independently published lens data. Familiarize yourself with the kinds of consumer advertising that your customer will see so that you can answer questions that they might have. Ask your customer about what they need their lenses to do and then be quiet and listen. Ask them about previous experiences with multifocal lenses and progressive lenses in particular, then be quiet and listen. They expect you to be able to piece all of this information together and come up with a solution. Repeat their concerns and expectations back to them to verify that you have the correct information and begin to describe how particular designs will help. But, above all, don't over-promise on lens performance. Let your customer know how this new lens design is different from what they might have used in the past so that they won't be surprised and possibly unhappy with their purchase. Short-corridor lenses are just one of many options available in progressive lens designs and one lens may not cover all the needs your customer will have.


PROPER FITTING PROCEDURES FOR SHORT-CORRIDOR PROGRESSIVES

As with any progressive lens, fitting a short-corridor lens requires some groundwork.
Monocular PDs are imperative, preferably taken with a pupilometer for accuracy. Make sure your patient is holding the end of the pupilometer firmly against the face much like looking through a pair of binoculars. Record this measurement in monocular or "split" PD form, i.e. 32/31.

Select the proper size frame for measurements. It may not be the correct color, but size is indeed what matters in this instance.

Adjust the frame fit, if necessary, so that the nose pads, pantoscopic tilt and temple bend are comfortable. If possible allow the customer to wear the frame for a few minutes to become comfortable with the fit and so that you can note head position when sitting and standing. Remember, where you think the frame should fit and where your customer actually wears it may not agree. They need to be comfortable at all costs. If you have had to change the pantoscopic tilt of the frame, note it in the patient's record so that you can duplicate it if you are not using the fitted frame.

Make sure that your chair height allows you to work at the same eye level as your customer. If you are looking up or down while taking your measurements, they will not be as accurate as they should be.

Using a felt tip pen or fine point marker, dot the center of the pupil on the demo lens in the frame. If no demo lens is available, try covering that portion of the frame with transparent tape to provide a marking surface. The truly steady-handed optician will be able to use a PD ruler to measure pupil height, but marking the demo lens is still the better option
Using a PD ruler, measure the distance from the pupil mark to the deepest point on the frame eyewire, not at the point directly below the pupil mark. This measurement is the seg height you will order from the lab.

Using cut-out charts provided by the lens manufacturer, verify that the lenses will work with the chosen frame. If the frame you and your customer selected will not work even with the short-corridor design, don't try to make it work. Choose another frame and repeat the process. Your customer will appreciate your attention to detail and your interest in his or her success with short-corridor progressive lenses

ORDERING SHORT-CORRIDOR PROGRESSIVE LENSES

There is no big secret to ordering short-corridor progressive lenses. As with any lab order make sure that your lab can provide the lens design that you need. Check your order form for accuracy and legibility. Don't make the lab guess at numbers and signs. If possible send the frame to the lab for processing. If you prefer to do your own edging, remember that old carpenter's rule, "measure twice, cut once." These lenses are too expensive to have to remake for an error in measurements.

Before dispensing, verify the power, optical center placement and seg height for accuracy. If necessary, adjust the pantoscopic tilt and bring the frame into standard four-point alignment. Some opticians prefer to leave any markings intact on the lenses to aid in the final adjustment; others prefer a pristine lens surface to present to the customer. Either choice is acceptable.

DISPENSING SHORT-CORRIDOR PROGRESSIVE LENSES

Begin the process by reviewing the lens properties that were decided on when the order was placed.

Have reading material of various sizes at hand to help your customer begin the learning process. Many opticians find it beneficial to begin with slightly larger than average print size and introduce different and smaller sizes so that the customer understands the transitional corridor and how it leads the eyes to the reading area.

Let the customer know that these lenses may require slightly more head movement than usual, at least during the initial learning period but with time that should decrease. Be sure he or she understands that it will take several days for the visual system to become accustomed to a new set of lenses and that the greater the wearing time the faster the learning process becomes. Caution the customer that switching back and forth between the new glasses and the previous pair will only slow down or even stop the entire process.

Have the customer move from distance viewing to intermediate to reading rather slowly to reinforce the idea of progressively increasing lens power.

Once the customer is comfortable at the dispensing table, it's time to get up and move around a bit to understand how to use the lenses while standing and walking. Emphasize that to comfortably navigate stairs and curbs, it will be necessary to tilt the head down and look through the distance portion of the lens to have the sharpest vision.

Finally, instruct your customer on the care and maintenance of this new purchase. Suggest the proper cleaning solutions and the way they should be used. Remind them that using two hands to put glasses on and take them off will preserve their adjustment and that storing them in their case will prevent accidental damage.

Savvy opticians will make a follow-up appointment to check the adjustment of the frame, ensuring that the customer is completely satisfied with their selections.

TROUBLESHOOTING SHORT-CORRIDOR PROGRESSIVE LENSES

Okay, so you've done everything by the numbers. The frame fits properly. The lenses were fabricated properly and your customer is still having problems. The first thing to do is NOT remake the lenses, changing a base curve or the seg height or the PDs. The first thing to do is listen to what your customer is saying. Did the environment in which they are using the lenses change? Are they spending more time at the computer than they originally thought? Has the frame adjustment been altered? Do flat surfaces appear curved? Or did someone close to them whose opinion they value react negatively to the frame? The key here is to listen, repeat what you heard to make sure you understand and then make your decisions. Ask your questions based on what they said, not what you were thinking.

Changing the pantoscopic tilt may solve flat surfaces that appear to curve


Difficulty in using the transitional corridor or insufficient reading area may be solved by changing the frame's vertex distance or changing the "face form" of the frame. Keep in mind that changing the "face form" will impact the optical center placement.Holding the head in an uncomfortable position may mean that the segs are either too high or too low. Re-mark the lenses and check their placement relative to the eyes. You may be able to solve this problem by raising or lowering the frame with a nosepad adjustment. However, if this requires excessive adjustment that interferes with the frame's appearance, you may need to remake the lenses with a lower seg placement and that may create a new set of issues with frame selection. This is where following correct procedures from the very beginning, even though they may slow you down a bit, could pay off by saving you money and saving your customers time and aggravation

Non-specific complaints, just general dissatisfaction may mean that the customer has had second thoughts about the frame or is reacting to comments by friends or family. Just listening to them and re-evaluating and validating their choices may solve this one.

NON-STANDARD APPLICATIONS FOR SHORT-CORRIDOR PROGRESSIVES

Most non-standard applications for short-corridor lenses are anecdotal, but can plant some seeds for future use.

Discuss with the prescribing doctor the use of short-corridor lenses with children who are being fitted for bifocals. The advantage here is that there is no line for them to try to avoid, the prime reason bifocals are fitted so high in children's frames. Theoretically, the eye is drawn down the corridor to the reading area.

Suggest using short-corridor lenses in elegant small frames for those events requiring evening dress.

Short-corridor lenses may be an option for sports where a bifocal is only necessary for reading a scorecard, such as golf.


SUCCESS WITH SHORT-CORRIDOR PROGRESSIVE LENSES

Your customer's success with short-corridor progressive lenses hinges on a few important key points.
  • Know your product. Know what lens designs are available, in what materials and in what parameters.
  • Listen to your customer's needs and wants, paying careful attention to previous wearing experiences.
  • Describe the features that will address those needs and wants, being careful not to over-promise lens performance.
  • Pay careful attention to frame selection and fit. Don't rush the process.
  • Verify finished eyewear before dispensing.
  • Carefully adjust the finished eyewear and instruct your customer on its use and care.

Schedule a follow-up visit to check their progress.


In short, and I meant that pun, this new lens category offers a realistic solution to the problem of designing fashionable and functional eyewear.


That’s it!…as always, hope this helped someone, feel free to leave comments or questions.
Ben Ramsey…aka MobileEyeGuy

info@FactoryDirectEyeglasses.com

Factory Direct Eyeglasses.com

Sunday, August 13, 2006

Delivering a Safety Sermon

Hello to my regular readers, thanks for stopping by.
And to you first timers, thanks to you as well,
Please feel free to stop by often, and ask any questions you might have,
Or subjects you would like to see posted.

I came across this Article in one of my Optical Trade Journals,
And thought sense it is that time of the year when our kids are going back
To School and Sports will be starting soon that it would make a good post.
It was written by Andrew Karp, and was in the July edition of 20/20 Mag.
I thought it would be good food for thought.
Here it is:

I don't have much patience for proselytizers. I tend to tune out anyone who sanctimoniously preaches about politics, religion, philosophy or any other topic.

So why am I getting up on a soapbox now? The reason is I’d like to call attention to a topic that can make a real difference in people’s lives, especially children. I’m referring to the under-recognized need for eye protection for athletes, both amateur and professional. As Dr. Paul Berman asserts in this month’s Lens Choices feature, “Pro-Active: Meeting the Challenge of Protecting Kids’ Eyes,” many people are at risk for serious eye injury while playing sports because their eyes are not sufficiently protected.

I became a believer in the importance of wearing protective eyewear for sports when a colleague came to work one day with a nasty gash across the bridge of his nose. It seems he was playing softball and slammed into an infielder while trying to steal second base. The impact snapped a nosepad off the sunglasses he was wearing, which were designed for streetwear, and the exposed metal arm cut him right at eye level. While the wound wasn’t serious, it could easily have been, since the nosepad arm was only a few millimeters from his eye.

My friend wisely took this as a warning and purchased a pair of prescription sports goggles. Fortunately, he was wearing them the day he was playing basketball and got hit in the face with the ball. Although the impact knocked him down, his eyes were protected and he got up and continued playing. Many readers may already be promoting the use of sports protective eyewear to their athletic patients. But what about the occasional athlete who takes part in a casual pick-up game or tosses a ball around the backyard with their kids? Are they getting the message too? If there’s any doubt, it may be time for you to get up on a soapbox and deliver your own safety sermon.
—Andrew Karp


As always, hope this has be helpful, see you next time.

Ben…aka MobileEyeGuyhttp://www.mobileeyeguy.com/

Saturday, July 22, 2006

DRY EYE

DRY EYE
To my regular readers…Hey Gang!…Thanks for stopping by again,
Thanks to you first timers too!
As promised, here is another article regarding Eye Health.

DRY EYE: An Irritating Problem

If your eyes often feel dry and scratchy, you may have a condition called dry eye.
This occurs when the eyes are not kept moist enough by tears.
Dry eye can be uncomfortable. It raises your chances of eye infection. Left untreated, dry eye can cause serious damage to the eye issue. Over time, the cornea (the eyes protective covering) could even become scarred, resulting in vision loss.
Dry eye can also make wearing contact lenses very uncomfortable.

If you have dry eye, you'll be glad to know that this condition can be treated. This article will help you understand how.

Symptoms of Dry Eye

Dry eye can cause one or more of the following symptoms:

1 watery eyes
2 scratchy, dry, irritated or generally uncomfortable eyes
3 redness of the eyes
4 a feeling of the presence of a foreign body in the eye
5 blurred vision
6 and apparent loss of the eyes normal clearness and luster


Two types of tears

Normally, the eye is lubricated by tears. These lubricating tears are made by a gland in the eyelid. (These are different from the more watery reflex tears that are made when you cry.) Every time you blink, lubricating tears spread over the surface of the eye.
They then flow out of the eye and drain into the nose.


The Anatomy of a Tear

Lubricating tears form of film on the eye.
This keeps the I moist. These tears have three layers that work together to lubricate the eyes.



When You have Dry Eye

Dry eye is caused by a problem with the lubricating tears. In some cases, not enough tears are made to moisten the eye. In others, enough tears are made but they don't have the right amounts of each layer to work right. The tears may be to watery or too sticky to properly lubricate the eye.

When the cornea is irritated, the body tries to fix this by making more tears. So, dry eye can actually cause your eye to water. But since these tears aren’t able to properly lubricate the eye, making more of them doesn't solve the problem.


Causes of Dry Eye

Dry eye can be caused by one or more of the following:

1 Age. As a person gets older, the eyes don't make tears as well as before. More than half of the people who have dry eye are over age 50.
2 Blinking problems. When you can't blink normally, your eye doesn't stay as moist.
3 Certain medications, including antihistamines, decongestants, birth-control pills, and tranquilizers.
4 Environmental factors, such as a dry climate or excessive exposure to wind.
5 Allergies or hayfever
6 Chemical or thermal burns to the eyes.
7 Certain health problems, including arthritis and Sjogren's syndrome (an autoimmune condition that affects mostly middle-aged women).


To Diagnose Dry Eye

Early detection of dry eye leads to more effective treatment and helps prevent damage to your eyes. If you have had symptoms of dry eye, make an appointment with your eye doctor. Your eyes will be examined using sophisticated diagnostic tools. You and your doctor will also discuss lifestyle habits, environmental factors, medications, and health conditions that could be causing your symptoms. Your examination and this discussion help your eye doctor determine the best form of treatment.

To Treat Dry Eye

Dry eye cannot be permanently cured, but there are effective treatments. Your eye doctor may recommend one or more of the following:


1 specially formulated eye drops (called lubricating eye drops or visual tears) which replaced your natural lubricating tears.
2 Soothing eye ointments that can be applied at bedtime.
3 The use of a humidifier in your home or office during periods of especially dry weather.
4 The insertion of tiny plugs in the tear drainage canal in the inner corner of each eye for more severe cases of dry eye. Visa slowdown in the drainage of tears from the surface of the eye. This way are tears remain on the eye longer and provide more natural lubrication. The plugs are inserted during a simple, painless procedure.
5 Surgery to permanently close the drainage Canal's in rare cases of dry eye. The surgery is simple and painless.


This article is not intended as a substitute for professional medical care. Only your health-care professional can diagnose and treat a medical problem.

Well as always….Thanks for stopping by, hope this has been helpful to you,And feel free to leave comments, or ask me questions.

Ben…aka MobileEyeGuy
http://www.mobileeyeguy.com/

Saturday, July 01, 2006

Allergies and Your Eyes

To my regular readers, sorry it has been awhile since I posted an article.
Last season's hurricanes caused things to be a little topsy-turvy for a while, but things are back to normal now, just in time for the new hurricane season. LOL

I know my blog is primarily intended to be about safety glasses, designer eyewear, and new eyewear products, but here in the very near future I'm going to be throwing in some articles in regards to your eye health as well as eyewear. So here's the first one, I figured it was a good time of year to discuss this topic.
Enjoy

The Problem With Allergies

Allergies can be triggered by many substances.
Seasonal allergies (also called hayfever) are often caused by the grass,
tree, and weed pollens that are abundant in spring and late summer.
Other types of allergies can affect your eyes year-round. Allergy symptoms include
sneezing, congestion, and red, watery, itchy eyes.

Why Allergies Occur

Your body's immune system protects you against illness by staying alert for harmful agents entering the body. If this occurs, the immune system protects you by neutralizing, removing, or destroying the harmful agent.

Allergies occur when the immune system misidentifies a normally harmless substance, such as pollen or mold, as a harmful agent. The body responds by producing more of certain chemicals to neutralize the substance. These chemicals, called histamines, are what caused the itchy, redness, swelling, and irritation you experience.

Many substances can trigger an allergic reaction. Most allergens that cause eye symptoms are airborne. Plant pollen, mold, dust, and animal dander (skin particles) are the allergens that most often affect the eyes.

Allergies can lead to a condition called allergic conjunctivitis. This is an inflammation of the conjunctiva (the membrane that covers the inside of the eyelid and the white part of the eye). It may occur at about the same time each year, when the allergen is most abundant

Relief for Irritated Eyes

Short of completely avoiding the allergens that cause your symptoms, it's impossible to escape your allergies. However, you can take steps to relieve your symptoms:

1. Try over-the-counter products such as antihistamine eyedrops to reduce redness, itchiness, and other symptoms. Artificial tears can also help by flushing allergens out of the eyes these products are available at drugstores.

2. When possible, limit your exposure to allergens. Stay inside when pollen or mold counts are especially high.

3. For cleaner indoor air, use air-conditioner filters that are designed to reduce allergens in the air.

4. Ask your health-care provider about other options. For example allergy shots may reduce symptoms and the need for other medication. Prescription medications may also be available.

This article is not intended as a substitute for professional medical care. Only your health-care professional can diagnose and treat a medical problem.

Just throwing in a little bit of a disclaimer there.
This article is just to give you a bit of an overview in regards to allergies, if you think you may have allergies than please consult your physician.

Well as always….Thanks for stopping by, hope this has been helpful to you,
And feel free to leave comments, or ask me questions.

Ben…aka MobileEyeGuy
http://www.mobileeyeguy.com/

Friday, February 17, 2006

DEFINITY PROGRESSIVE LENSES

DEFINITY Lenses use a revolutionary DUAL ADD design, to help you achieve your full vision potential. It is associated with a patented Free Form technology to optimize your prescription.

· DUAL ADD technology splits the add power between the front and back surfaces of the lens.

· This results in twice the surface area, which is used to create an offset design that delivers advanced optics.


Well hello again to my regular readers,
And welcome if this is your first time.

Obviously, in this post we are going to talk about the new Definity progressive lenses, but before we do, I would like to discuss some basics on progressive lenses in general.

First off, for those who don't know what a progressive is, the slang term that most people use, and are more familiar with is
No Line Bifocal.
But the proper term for this style of lens is Progressive.

When selecting a progressive lens it can be confusing because there are so many different styles of progressive lenses. It is like saying pickup truck, pickup truck is the style but you have Fords, Chevey’s, Dodge, Toyota, Nissan, Ect.
It is the same with progressive lenses there are many different styles but the style you get unless you're aware of this many times depends on where your buying your glasses, and what style that establishment likes to sell.

You might ask, what makes the difference?
Well each style has a different structure to the lens.
All progressive lenses have some sort of compromise that the consumer will have to deal with.
They all have some distortion or displacement somewhere in the lens design, any of you that have or are wearing progressive now know what I am talking about.
With most progressives, the biggest thing is you have to point your nose at what ever you are looking at.
You've heard the stories…… I can see great while I’m driving but have a little problem reading,
or
I can read great but I can't see very good in the distance.
And the biggest problem with all of them is in the intermediate.
People often complain that while on the computer or doing something else in that intermediate range that intermediate focal point is too narrow.

So that is some of the key factors to different styles of progressive lenses, for years all progressive lens manufacturers have been trying to develop smoother transitions between distance vision and near vision,
and have been trying to widen that intermediate area to make it more comfortable for intermediate tasks.
And that is the difference between a basic inexpensive progressive that you get at a discount optical versus a more expensive top-of-the-line progressive that you get in private practice or high-end boutiques.

So having said all that,
the new Definity as stated above uses a duel add design.
Instead of putting all the add power or the bifocal power on the front surface of the lens, they split it, and put some on the front surface and some on the back surface.
This, if I'm understanding correctly allows less distortion, a smoother transition between focal points, and a much wider intermediate area.

So for us old-time hardheaded lined- bifocal wearers that have not been able to adapt to a progressive lens in the past, we are supposed to be able to wear this particular style progressive without the inherent problems of other styles in the past.

I did get a coupon from my sales rep. At my Lab, and had myself a pair of polarized sunglasses made up with the new Definity lens.
And I have to admit it is a much wider intermediate then I ever tried before. And I am wearing them on a daily basis for driving.
I would like to get a clear pair now, and see how they are for my computer. I've seen so many new progressives come out over the years claiming to be the best and distortion free, and wider intermediate's, larger reading areas, and so on.
Some are very good, and some are junk.
But this new design does seem to make sense, so if there are any of you out there that have tried progressive lenses in the past and did not get along with them, you may want to try this new Definity lens, if you would like to know more about the Definity lens here is a Link:

http://www.definity.com/why_definity.html

As always, feel free to leave any comments, or ask any questions,
Hope this has been helpful, see you next time.


Ben…akaMobileEyeGuy
www.mobileeyeguy.com

Wednesday, January 11, 2006

John Lennon Eyeglasses

John Lennon Eyeglasses
Legend...Peace, Love, and Cool Eyewear
Stylish ... Smart ... Quality.
A distinctive collection that demands attention.


Before I start this post, I would like to say, I hope everybody had a very Merry Christmas and a safe and happy new year.
Christmas weekend I meant to put up a holiday post, but as I’m sure you can all understand, it got a little hectic and I didn't get a chance.
My teenage kids were out of school, and my mother came to visit us for two weeks during the holidays, so it was a bit busy, but we had a great visit and had a lot of good quality family time, I hope you and yours had the same opportunity.

Thank you to all of you that come visit my blog, please continue to visit, and please continue to leave comments and ask questions about eyewear that you would like to know.

This post is a new product announcement.
One of my vendors Smilen Eyewear has a new line of eyewear called the
JOHN LENNON COLLECTION





In the eyewear business it is not uncommon for celebrities or companies to put their brand or name on eyewear products for marketing purposes.
And I usually don't get too excited about names or labels, but this one I guess, because I am from the baby boomer generation, I thought
John Lennon eyewear would be pretty cool.
Also it's a pretty good quality frame, and each frame comes with its own hard case, and a three-year warranty.

I have seen on eBay and other places a lot of John Lennon eyewear being advertised, but most of it has been a bunch of what I call cheap gas station sunglasses, and they're not really made to put a prescription lens in.
Just because a pair of glasses is round doesn't mean it's John Lennon glasses.

These glasses on the other hand are a good quality Opthalmic frame made specifically for the purpose of putting a prescription lens in.
So for those that are looking for that old retro style looking glasses,
these are a pretty good frame to look into.

If you'd like to see more of these frames then are pictured here,
then click on this link:
www.mobileeyeguy.com/products.php?c_id=115

In the next few articles we will be talking about some other new products that are out, like, John Deere eyeglasses, and a new progressive lens called the Definity

As always, please don't hesitate to ask any questions in regards to any other products you would like to know about.

See you next time

Ben Ramsey…aka Mobile Eye Guy

http://www.mobileeyeguy.com/