Resources


Mastering Prentices Rule
Once it is found that either wanted or unwanted prism is present in any given lens and the direction of the base is determined, the power of the prism can then be calculated utilizing a simple formula called Prentice’s Rule. It is important to become familiar with Prentice’s Rule since it may be used as … <a href="https://opticaltraining.com/blog/mastering-prentices-rule/">Continued</a>


Ophthalmic Frames: Measurements and Markings
Frames: Measurements & Markings Frames may be measured using either one of two systems, the Datum System or the Boxing System. Datum System of Measurements When measuring an eye size using the datum system, an imaginary line is drawn through the middle of the eyewire both in the horizontal and vertical planes. The length of … <a href="https://opticaltraining.com/blog/ophthalmic-frames-measurements-markings/">Continued</a>


The What, Why, and How of Frame Adjustments
The Comprehensive Guide to Mastering Frame Adjustments Ensuring a proper, personalized fit is paramount when it comes to eyeglasses. Every single frame must be meticulously adjusted and customized to the individual patient for optimal visual performance and comfort. As an eye care professional (ECP), navigating the nuances of frame adjustments is a critical skill that … <a href="https://opticaltraining.com/blog/the-what-why-and-how-of-frame-adjustments/">Continued</a>


Top Contact Lenses for Astigmatism: A Comprehensive Review
Astigmatism: A Brief Review Astigmatism is a common refractive error that is correctable through the use of eyeglasses, contact lenses, or surgery. If we think of the normal cornea as being essentially spherical in shape, when light enters the eye, it is refracted or “bent” evenly in all directions, resulting in a sharp point of … <a href="https://opticaltraining.com/blog/top-contact-lenses-for-astigmatism-a-comprehensive-review/">Continued</a>


Lens Form and Analysis: Power of a Lens in Various Meridians
As opticians and vision professionals, understanding the intricate relationship between lens power and meridians is crucial for providing optimal visual solutions for our patients. By the end of this article, you will have a firm grasp of the principles governing lens power, enabling you to make informed decisions and deliver exceptional eyewear experiences. Power of … <a href="https://opticaltraining.com/blog/lens-form-analysis/">Continued</a>


Ophthalmic Frames Principal Parts
Frames Principal Parts Quick Summary A frame is the portion of a pair of spectacles designed to hold the lenses in the proper position before the eyes. Although ophthalmic frames come in a large variety of styles, sizes, shapes, and colors, they usually have certain basic parts in common. As illustrated below, the principal parts … <a href="https://opticaltraining.com/blog/ophthalmic-frames-principal-parts/">Continued</a>
