Prescription eyeglasses and/or contact lenses are worn by over 60% of the nations population today. The end of the year 2006, it is estimated that 176 million people will be in need of vision correction.
A survey conducted by the Vision Council of America showed that over 40 percent of the subjects surveyed would wear [...]
There are many different lenses that have been specially created for certain purposes and needs.
An aspheric lens is one of the lightest weights of all lenses. They are available in bifocal or single vision prescription eyeglasses. The Allyl Resin plastic lens is also very light in weight. They do not offer the protection [...]
Although the majority of the nations people wear sunglasses for fashion reasons, sunglasses were invented to serve as protection for the eyes against UV Rays produced by natural sunlight.
There are three different types of Ultra Violet Radiation. The first is the UVC rays. These rays are mostly absorbed by the upper atmosphere and [...]
There are estimated 168 million people who wear prescription eyeglasses in the United States. Only a very small percentage of those people could tell you what strength their lenses are or read an eyeglass prescription.
The strength of prescription eyeglasses is measured in what we call diopters. Optometrists abbreviate that with a D. The stronger the [...]
In today’s society, not only are prescription eyeglasses a necessity, but to some people they are a fashion accessory. Top designers like Giorio Armani, Eddie Bauer, Clavin Klien and even Brittany Spears have picked up this latest fashion trend. Putting their name and usually a high price on designer frames and lenses.
A pair [...]
A person should have their eyes examined by an optometrist every two years or every year after the age of 60, to determine whether they need to wear prescription eyeglasses. Also, If any of the following symptoms occur, then an eye exam needs to be scheduled.
* If a person is having a hard time [...]
From documents that were retrieved in Rome in the 13th Century, we know that prescription eyeglasses were available at that time. They were referred to as “spectacles” rather than glasses. Although we do not know for certain when prescription eyeglasses were invented, we do have proof that they did exist during this time [...]
Did you ever think that the sun could be cancerous? Not just for your skin, but for your eyes as well. There have been several scientific studies that are concluding that if you are out in the sun for too long without sunglasses, you may be at risk of developing cancer. Without sunglasses, the sun [...]
Prescription eyeglasses are manufactured in a variety of materials. The most basic is the glass lens. The glass lens is by far the best in absorbing ultraviolet light. It comes in several different colors and is, of course, scratch resistant. It is also one of the least expensive. The downfall [...]
Prescription eyeglasses are glasses that have been prescribed by an optometrist to be worn by someone who has been diagnosed with a certain eye condition. Depending on the condition, a different lens will be prescribed.
Prescription eyeglasses are broken down into four different categories.
The Single Vision Lens has the same focal power from the top of [...]
