by admin | May 25, 2010 | Surfacing
Often, it is beneficial for the eye care professional to predict the finished thickness of a pair of spectacle lenses. Determining the change in thickness that results from the patient's use of a different frame or lens style is a common example.Patients investing a...
by admin | May 5, 2010 | Refracting
Many opticians around the country have shown great interest in learning the procedures involved but have been unable to take a course on the subject. This article is designed to introduce the subject to those interested, and to provide some continuing education to...
by admin | May 5, 2010 | Lens Form and Theory
As light rays pass through a lens with power, the rays are bent or refracted. In a lens with a plus power, the light rays converge or are refracted toward one another. The point at which the light rays converge is called the focal point and in a plus lens, is behind...
by admin | May 5, 2010 | Lens Form and Theory
Prism can be used to correct vision for an individual whose eyes are not perfectly aligned as with, for example, a patient with strabismus. When the eyes are not aligned, the right and left eye see different images resulting in blurred or double vision. Sometimes the...
by admin | May 5, 2010 | Low Vision
Low vision patients are the most under-treated, under-referred and generally overlooked patients in many eyecare practices. With the current growth in the elderly population, this may be a perfect time to re-evaluate your approach to this ever-expanding group of...
