The Lost Contacts

Introduction To Dispensing – Pupillary Distance & Heights

Measuring the correct pupillary distance and pupil heights for your customers is quintessential to proper optical dispensing. Get it right and your customers will love their new glasses, get it wrong and they will promptly be back to return their glasses.

In this lesson, you will learn why are these measurements so important, as well as how they are used during the lens edging & mounting process.

Introduction To Dispensing – The Glasses Order Form

In this lesson you will learn about the process of creating an order for glasses, as well as all the information that must be gathered to properly fill out a glasses order form.

Where Are Glasses Made?

Most optical stores do not make glasses on the spot. Once they have all the information for an order, the job is sent to an edging lab via a courier. The lab workers will put the prescription…

Introduction To Lenses – Tints

You cannot work in optical store without encountering requests for sunglasses on a daily basis. Hence, it is important to know about all the different ways that lenses can be tinted.

How Do Sunglasses Work?

First, let’s consider what sunglasses actually do. You might say they:

Make everything darker

They protect your eyes from the sun

They reduce glare

They make everything a different color

They…

Introduction To Lenses – The Base Curve

In Lesson 1 of this course, you learned about the lens index. In this lesson you will learn about another property of lenses called the base curve.

Remember that to fully understand the concepts covered in this lesson, it is best to have read through the entire The Optics of Vision course.

The True Shape of Lenses

Up until now, I have been simplifying the shape of lenses in order to make obvious…