ALLENTOWN OPTICAL’S DIGITAL DESIGNS DAILY C DAILY BASIC FOCUS SINGLE VISION OFFICE: PERSONAL, ASSISTANT, SUPERVISOR PARAMETER PETITE PROXIMITY Conventional Progressives Traditionally, progressive lenses have been produced using a molded blank that incorporates the progressive surface on the front side. These progressive blanks are produced in large quantities, and are available in multiple materials, each with…
Digital Eye Strain (DES) coatings are all the rage, and they should be. They potentially serve a very big benefit. All of our electronics are emitting vast amounts of HEV light that is headed straight for one of our most sensitive parts, our eyes. Before I continue on the subject, I would like to clear…
Leybold Optics, USA announces that Allentown Optical has acquired state-of-the-art Anti-Reflective coating technology, specifically a CCSII A/R coating machine & premium A/R coating processes. The acquisition of this equipment and technology from Leybold Optics will allow Allentown to better serve their customers by bringing their A/R coating production in-house. Allentown Optical underwent a significant facilities…
Allentown Optical Corp. has installed state of the art AR equipment from Leybold Optics.
It’s that time of year when we start thinking about back to school and children’s eyewear. And we do not think about kids’ eyewear without thinking about lens materials. The standard lens material for years has been polycarbonate. Seven years ago we had a newcomer to the lens material arena. In 2001, Trivex hit the…
prism reference point Taken from from http://www.zeiss.com web site: For a progressive power lens or semifinished lens blank, that point on the front surface stipulated by the manufacturer at which the prismatic effect of the finished lens is determinde. NOTE: The prism measured is the resultant of prescribed prism and prism thinning. The following excerpt…
In 1621, a Dutch physicist named Willebrord Snell (1591-1626), derived the relationship between the different angles of light as it passes from one transperent medium to another. When light passes from one transparent medium to another, it bends according to Snell’s law which states: that the angle of refraction is related to the angle of…
Children can have any one of a range of eye conditions. All of them affect children in different ways and require individual treatment and/or support. The most common eye conditions affecting children are: 1. Myopia (short sight) Children with myopia tend to concentrate on near work and are less aware of the wider environment (or…
Depending on the individual’s vision and type of work, there are several options the type of lenses for computer glasses. Single vision, bifocal, trifocals, and progressive lenses are the main types of lenses prescribed for computer glasses. Most often, a separate pair of glasses is needed for computer work, in addition to the patient’s dress…
Properly used contact lenses can be very safe and convenient. However, many wearers take big risks by avoiding yearly eye exams and over wearing their lenses. Both practices can result in serious damage to your eyes. Having contacts fitted by an eye care professional is very important because the cornea (clear outer layer of the…
