Wednesday, August 26, 2015 12:09 PM
I had the honor to be the facilitator for the development of an education program “Refraction for Opticians.” You cannot understand refraction without knowing basic optics. Re-visiting trigonometry brought back memories of a lot of challenging math-moments and the glorious, “I got it,” experience. Searching for new tools to teach standard topics brought us to Khan Academy.
Wednesday, August 26, 2015 12:03 PM
This month I’m taking a look at Zeiss’ DuraVision BlueProtect. In the interest of full disclosure, I didn’t come into this series with an intimate familiarity of Zeiss products; my optometrist when I was in college used them in his office, but I didn’t learn that until years later, and, at the time, I wasn’t a very discerning consumer of lens products.
Wednesday, August 19, 2015 2:06 PM
In one of my last articles, Diversifying Your Lens Portfolio, I explained a three-tier approach used in the everyday operation of a car dealership. The car dealership sees different types of customers every day and they recommend a good, better and best offering according to the type of customer.
Wednesday, August 12, 2015 3:06 PM
This week I finally went over the edge in dismay about OTC (over-the counter) readers. Within one week I had seen both my veterinarian and the owner of an international travel agency wearing OTC readers in bad repair.
Wednesday, August 5, 2015 10:15 AM
We all know that awful feeling. When your new car gets its first door ding. When your new armchair gains chocolate-y fingerprints. When your smartphone screen gets scratched on your pocket change. When those new ultra-hip boots get rain-stained.
Wednesday, August 5, 2015 10:05 AM
When recommending a lens material for your customers, it can be helpful to think of the business philosophy, “Value for Money.” In short, “Value for Money” is the idea that for every dollar spent on a product or service, the purchaser gets a certain amount of value or use in return.
Tuesday, July 28, 2015 7:35 PM
Frame choice also drives material choice. Usually the patient will select their frames first and then the lenses. This can present a problem with some lens materials. Consider the combination of a plus lens and a grooved semi-rimless frame.
Wednesday, July 22, 2015 10:11 AM
To many spectacle wearers, lenses are simply two pieces of glass (OK, perhaps some patients have learned that most lenses today are in fact made from plastic materials) suspended in front of their eyes by some type of metal or plastic “holder”.
Wednesday, July 15, 2015 10:11 AM
When compared to CR-39 monomer, lenses made with Trivex material are up to 15 to 20 percent thinner and always about a third lighter. An aspheric design will further reduce thickness and weight. While there are other higher index materials that can make lenses even thinner, lightness depends on final lens volume and its specific gravity.
Wednesday, July 15, 2015 10:08 AM
Let’s now turn our attention to the topic of reference wavelength and the controversy that has been since the formation of International Organization for Standardization (ISO) Standards for ophthalmic lenses in 1979.
Wednesday, July 8, 2015 1:05 PM
In May of 2015, I participated in the latest round of ISO TC172/SC7/WG3 spectacle lens meetings in Shanghai, China. Every 18 months, delegates from around the world meet on a rotating basis in Europe, Asia or the US with the purpose of reviewing and updating standards.
Wednesday, July 8, 2015 10:15 AM
We all have to make cost-benefit decisions on a daily basis. Is it worth going 10 minutes out of your way to get that really good cup of coffee? If you install energy-efficient appliances in your home, will you get that return on investment?
Wednesday, July 8, 2015 10:10 AM
You open the oven door to check your pizza, your glasses fog up. You’re speeding down a ski slope, your glasses and your goggles fog up. You step out of an air-conditioned car into the summer swelter, your sunglasses fog up.
Wednesday, July 1, 2015 10:10 AM
Trivex material’s development has been consistent with the way new technologies build sophistication into products. In the past, a lens material had to be more closely matched with the prescription and the end results wanted. This is no longer the case.
Wednesday, June 24, 2015 10:03 AM
There was excitement at the West Coast Better Vision Conference in Florida on June 5, 2015. POF, the Professional Opticians of Florida Association, introduced the education program “Refraction for Opticians” to their membership.