Course

CONTACT LENS THEORY I

Important Notice

This course is not active. Please contact Department Chair for more information.

Faculty
Science & Technology
Department
Dispensing Opticianry
Course code
DOPT 2401
Credits
7.00
Semester length
15
Max class size
25
Typically offered
To be determined

Overview

Course description
This course will provide students the knowledge of Anatomy and Physiology of the eye in relation to contact lens fitting. It will provide the skills of instrumentation in fitting contact lenses, convert and verify prescriptions, and examine the relationship between contact lens fit and corneal health. It provides students the ability needed to evaluate suitability for contact wear, by patient ocular history and examination. The ability to design the contact lens, select appropriate material, train the patient proper handling technique, lens care and hygiene. It will identify surgical alternatives and pertinent professional standards of practice.
Course content

A.  Physiological Optics

 

1. Introduction

 

                1. Course Content Overview

                2. College of Opticians Guidelines

                3. Sign pledge to Code of Ethics and Practice Standards

                4. Deliver and discuss the standards of practice by the College of Opticians in BC

                5. Douglas College Student Policies orientation

                6. Responsibilities to the Contact Lens Patient by Health Care Providers

 

2. History of Contact Lenses

 

                1. Chronology of Important Events in Contact Lens History

                2. Key Trends in Contact Lens History

3. Basic Anatomy and Physiology of the Visual System

 

                1. Terminology

                2. Anatomy of the Visual System

                3. Physiology of the Visual System

 

4. The Cornea

 

                1. Terminology

                2. Corneal Anatomy

                3. Corneal Physiology

                4. Maintenance of Corneal Transparency

 

5. Defects of the Visual System

 

                1. Terminology

                2. Corneal Pathology

                3. Ocular Pathology

                4. Contact Lens Related Defects of the Visual System

 

6. Instrumentation

 

                1. Terminology

                2. Biomicroscopy

                3. Keratometry and Corneal Topography

                4. Contact Lens Inspection and Verification

                5. Contact Lens Modification

 

7. Refractive Surgery

 

                1. Terminology

                2. Corneal Refractive Surgery

                3. Intraocular Refractive Surgery

 

B. Applied Optics

 

1. Contact Lens Materials

 

                1. Soft Lens Materials

                2. Gas Permeable Materials

 

2. Contact Lens Design

 

                1. Basic fitting philosophies

                2. Classification and Terminology

                3. Soft Lens Design

                4. Gas Permeable Lens Design

                5. Fitting Relationships

                6. Toric Contact Lens Designs

 

3. Visual Optics   

 

                1. Terminology

                2. Front and Back Vertex Power

                3. Spherical Equivalent

                4. Radius of Curvature to Diopter Conversion Formula

                5. Vertex Distance Compensation Formula

                6. Tear Lens Compensation

                7. Residual Astigmatism Calculation

                8. Convergence and Accommodation

                9. Magnification and Minification of Image Size

                10. Water Content Calculation

               

4. Contact Lens Solutions 

 

                1. Terminology

                2. Soft Contact Lens Solutions

                3. Gas Permeable Contact Lens Solutions

                4. Preservatives in Contact Lens Solutions

                5. Proper use of Contact Lens Solutions

                6. Potential Side Effects of Contact Lens Solutions

Learning activities
  1. Lecture
  2. Calculation exercises in classroom
  3. Independent study of courseware
  4. Independent completion of post tests
  5. Completion of field assignments
Means of assessment

The course evaluation is consistent with Douglas College evaluation policy. An evaluation schedule is presented at the beginning of the course.

Learning outcomes

Upon successful completion, the student will be able to:

 

A. 1.        1.1          Identify important people, events and key trends pertaining to the historical development of contact lenses

 

     2.        2.1          Review and define the terms pertaining to the basic anatomy and physiology of the

                                human visual system at an advanced level

                2.2          Identify anatomical structures of the human visual system

                2.3          Describe the physiology of the human visual system

 

    3.         3.1          Define the terms pertaining to defects of the human visual system

                3.2          Identify and describe pathological conditions of the human visual system

                3.3          Identify and describe defects of the human visual system which are contact lens related

 

    4.         4.1          Define the terms pertaining to the instruments used in a contact lens practice

                4.2          Identify the parts of the contact lens instruments used in a contact lens practice

                4.3          Interpret the results of data acquired from contact lens instruments

               

   5.        5.1          Review the terms pertaining to refractive surgical procedures on the human visual system

                5.2         Identify and describe the corneal and intraocular refractive surgical procedures and their

                            effects on contact lens wear

 

    6.         6.1          Define the terms pertaining to the design of contact lenses

                6.2          Describe the differences between various contact lens materials, manufacturing methods and designs

                6.3          Describe the advantages and disadvantages of various contact lens materials and designs

                6.4         Describe the proper use of contact lens solutions

                6.5          Classify contact lens materials and designs

                6.6          Describe fitting philosophies of contact lenses

 

    7.         7.1          Define the terms pertaining to the units of measurement used in contact lenses

                7.2         Calculate front and back vertex powers of contact lenses

                7.3         Convert a prescription for contact lens use

                7.4         Calculate residual astigmatism

                7.5         Describe convergence and accommodation with respect to contact lens wear

                7.6         Calculate image size changes due to contact lens wear

 

    8.       8.1            Become familiar with the Standards of Practice of Dispensing Opticians (Contact Lenses)

                              from the College of Opticians of B.C. pertaining to tools required, optical tolerances and professional conduct

Textbook materials

Textbooks and Materials to be Purchased by Students

 

A list of required and optional textbooks and materials is provided for students at the beginning of each semester.

Requisites

Prerequisites

DOPT 1310 or Meeting Direct Entrance Requirements

Corequisites

No corequisite courses.

Equivalencies

No equivalent courses.

Course Guidelines

Course Guidelines for previous years are viewable by selecting the version desired. If you took this course and do not see a listing for the starting semester / year of the course, consider the previous version as the applicable version.

(Current)

Course Transfers

These are for current course guidelines only. For a full list of archived courses please see https://www.bctransferguide.ca

Institution Transfer details for DOPT 2401
There are no applicable transfer credits for this course.

Course Offerings

There are no course offerings this semester.