Pupillary Distance and Heights Featured

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 … Continue reading Introduction To Dispensing – Pupillary Distance & Heights

The Glasses Order Form - Featured

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 … Continue reading Introduction To Dispensing – The Glasses Order Form

Introduction to Tints Featured Image

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 … Continue reading Introduction To Lenses – Tints

The Base Curve Featured Image

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 … Continue reading Introduction To Lenses – The Base Curve

Introduction to Lenses The Index - Featured

Introduction To Lenses – The Index

Hello and welcome to the first lesson of The Lost Contacts' Introduction To Optical Dispensing course! Before tackling this course, please keep in mind that it is meant to build on the knowledge laid out in The Lost Contacts' The Optics of Vision course. Please make sure you are familiar with the topics in that … Continue reading Introduction To Lenses – The Index

Ordering Trial Contact Lenses - Featured

Ordering Your Patient’s Free Contact Lens Trial Pair

This is the 5th installment of my Fitting Contact Lenses Course. So far we've learned: Knowing Who Can't Wear Contact Lenses Knowing Who Can Wear Contact Lenses How To Convert A Glasses Prescription To Contact Lenses How To Convert A Glasses Prescription To Contact Lenses: Astigmatism The next step is to get your patient a … Continue reading Ordering Your Patient’s Free Contact Lens Trial Pair

Presbyopia - Featured

The Optics of Vision – Part 10: Presbyopia

In The Optics of Vision - Part 9, we learned about the function of the crystalline lens. But as I pointed out towards the end of the lesson, the crystalline lens gradually stops functioning. This results in the condition we're going to discuss in this lesson called Presbyopia. This being the last lesson of The … Continue reading The Optics of Vision – Part 10: Presbyopia

Astigmatism Explained

The Optics of Vision – Lesson 8: Astigmatism

After studying this lesson, you will understand a concept that eludes the vast majority of people - Astigmatism! But before you proceed, keep in mind that this is Lesson 8 of the course and it is highly advisable that you have read lessons 1-7 before tackling this one. THE OPTICS OF VISION – LESSON 1: … Continue reading The Optics of Vision – Lesson 8: Astigmatism

Convert a Glasses Prescription to Contact Lenses Astigmatism - featured

How To Convert A Glasses Prescription To Contact Lenses: Astigmatism

In the previous lesson: "How To Convert A Glasses Prescription to Contact Lenses", I covered only situations that did not involve any astigmatism correction. In this lesson, I will only be discussing how to convert a glasses prescription to contact lenses when there is astigmatism to deal with. Before I get into it I just … Continue reading How To Convert A Glasses Prescription To Contact Lenses: Astigmatism

How To Convert A Glasses Prescription To Contact Lenses - featured

How To Convert A Glasses Prescription To Contact Lenses

Now that you know who can or can't wear contact lenses, it's time to get the contact lens fitting started. The first step is to determine the power of contact lenses needed for your patient. To do this so it is crucial to know how to convert a glasses prescription to contact lenses. Is A … Continue reading How To Convert A Glasses Prescription To Contact Lenses