Foundations: Lancaster PA

Get a crash course in optical dispensing

Foundations courses included in this training:

Lens Materials

There are many different lens materials to choose from, but when should you choose high index, polycarbonate or Trivex? This section reviews all aspects of lens materials from fabrication, to composition, to ABBE value and refraction as well as prescription parameters and thickness.

Lens Styles

We are familiar with our common lens types such as single vision, flat tops and progressives, but there are many lens style options that still have a place in today’s market. Get a better understanding of aspheric lenses, digital, occupational as well as the seldom prescribed myopic discs and carrier lenses.

Measurements and Boxing Systems

Boxing systems allow us to work with frames on hand and our patients own unique facial composition. Frame fit is more than “looking good”. This section will bring to light boxing systems and how frame fit will play a role in decentration of lenses and a patient’s visual acuity. We can make anything at our labs, but how the patient see’s is greatly impacted.

Progressive Lens Options

Did you know there are almost 1,000 different progressive lens options on the market today? Selecting a lens for your patient can be difficult and tricky, especially when you are new. How do you know when to use what? In this section, we will learn each of the lens manufacturer’s portfolios and the specifics of each of their lens styles and when to fit them. We will cover the main lens portfolio from Essilor, Shamir, Zeiss, HOYA, and VSP’s Unity lenses.


Prism is one of the toughest concepts to understand when learning the basics of Optometry. How they eyes work together and what is needed for correction for trophia’s and phoria’s can be tricky. Also, if prism is not prescribed… it is typically the culprit of why a patient cannot see out of their new glasses. Learn what to look for and how these impact your patient’s vision and what we can do to correct it so patients can see clearly and without eyestrain.

Base Curves

Base curves are one of the crucial components to lens fabrication. Base curves play a big role in oblique astigmatism and can have some adverse effects on our patient’s vision. This section will review common areas where we need to manipulate a base curve for cosmetic reasons, visual or anatomical. This section will help you not only troubleshoot a problem patient, but understand base curves and cosmetics for your patient.

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