OPT202 - Dispensing Theory I

Outline info
Last revision date 2018-07-20 13:48:48.852
Last review date 2018-07-20 13:49:01.893

Subject Title
Dispensing Theory I

Subject Description

This subject introduces the student to the professional role of the optician. Emphasis is placed in the regulation of opticians and related legislation. Students learn about different aspects of frames and lenses, including materials, types and methods of manufacturing, as well as the theory and methods of neutralizing lenses. Client assessment, frame and lens selection and delivery of finished spectacles including client teaching are included.

Credit Status
One credit subject toward the Opticianry Diploma Program.

Learning Outcomes
Upon successful completion of this subject the student will be able to:

Upon successful completion of this subject the student will be able to:
1. Demonstrate understanding of the regulations and Standards of Practice for Opticians.
2. Discuss the theory of visual optics and the assessment of vision.
3. Describe ophthalmic frames in terms of material, construction, measurement system and specific dispensing procedures.
4. Describe characteristics of ophthalmic lens materials, designs, and related dispensing applications.
5. Compare and contrast the construction, design and indications for use of various segmented multifocal lenses.
6. Describe the protocol and procedures for dispensing single vision and segmented bifocal eyewear.
7. Describe required safety standards, fitting and dispensing procedures for occupational safety and sports eyewear.
8. Through case analysis verify eyeglasses with accepted industry tolerances
9. Through case analyses recommend appropriate ophthalmic appliances considering prescribed lens power and patient’s needs.

Essential Employability Skills
Communicate clearly, concisely and correctly in the written, spoken and visual form that fulfils the purpose and meets the needs of the audience.

Respond to written, spoken, or visual messages in a manner that ensures effective communication.

Execute mathematical operations accurately.

Apply a systematic approach to solve problems.

Use a variety of thinking skills to anticipate and solve problems.

Locate, select, organize, and document information using appropriate technology and information systems.

Analyze, evaluate, and apply relevant information from a variety of sources.

Show respect for diverse opinions, values, belief systems, and contributions of others.

Interact with others in groups or teams in ways that contribute to effective working relationships and the achievement of goals.

Manage the use of time and other resources to complete projects.

Take responsibility for one's own actions, decisions, and consequences.

Cheating and Plagiarism
Each student should be aware of the College's policy regarding Cheating and Plagiarism. Seneca's Academic Policy will be strictly enforced.

To support academic honesty at Seneca College, all work submitted by students may be reviewed for authenticity and originality, utilizing software tools and third party services. Please visit the Academic Honesty site on http://library.senecacollege.ca for further information regarding cheating and plagiarism policies and procedures.

All students and employees have the right to study and work in an environment that is free from discrimination and/or harassment. Language or activities that defeat this objective violate the College Policy on Discrimination/Harassment and shall not be tolerated. Information and assistance are available from the Student Conduct Office at student.conduct@senecacollege.ca.

Accommodation for Students with Disabilities
The College will provide reasonable accommodation to students with disabilities in order to promote academic success. If you require accommodation, contact the Counselling and Disabilities Services Office at ext. 22900 to initiate the process for documenting, assessing and implementing your individual accommodation needs.

EAC150, OPT103 or Coordinator's approval
It is the responsibility of each student to ensure the course prerequisites have been met.  Failure to do so may jeopardize your credit. 

Topic Outline

  • Assessment of vision
  • Optical terminology
  • Ophthalmic lenses
  • Absorptive lenses
  • Ophthalmic frames
  • Single vision lenses
  • Segmented bifocal and trifocal lens design
  • Dispensing procedures for single vision eyeglasses
  • Dispensing procedures for bifocal and trifocal eyeglasses
  • Safety and vocational eyewear
  • Eyewear for sports
  • WHMIS, CSA, FDA and ISO standards
  • Professional regulations
  • Standards of practice

Mode of Instruction
lecture, hands-on practice, group work, audio-video presentation. .  

Prescribed Texts
System for Ophthalmic Dispensing
3rd Ed, Brooks& Borish;
Butterworth-Heinemann ISBN 0750674806

Reference Material
Guidelines for Professional Standards of Practice; College of Opticians of Ontario

Promotion Policy

Grading Policy
A+ 90%  to  100%
A 80%  to  89%
B+ 75%  to  79%
B 70%  to  74%
C+ 65%  to  69%
C 60%  to  64%
D+ 55%  to  59%
D 50%  to  54%
F 0%    to  49% (Not a Pass)
EXC Excellent
SAT Satisfactory
UNSAT Unsatisfactory

For further information, see a copy of the Academic Policy, available online (http://www.senecacollege.ca/academic-policy) or at Seneca's Registrar's Offices.

Modes of Evaluation

Term Tests ( 2 x 10%) 20%
Research Assignment 10%
Mid Term Exam 30%
Final Exam 40%
Total 100%

 Students must attain a minimum overall mark of 60% in order to pass this subject.  Failure to meet the above will result in a grade of "F".

Testing dates have been pre arranged and are non-negotiable. If a test is missed students are required to provide documentation, such as a doctor's
certificate in the case of illness, along with written request for make testing privileges within 7 days following the date of the test. Make-up examinations will be granted for extenuating circumstances only at the discretion of the appropriate Faculty.

Expected English Competencies:

Since this is a professional credit subject, marking standards reinforce professional practice by demanding that all written work must demonstrate the following characteristics for clarity and conciseness: 

-       writing is consistent with the rules of English grammar 
-       spelling and punctuation are correct 
-       appropriate vocabulary used 
-       sentences are structured correctly 
-       work to flow logically through supporting statements 
-       work to be arranged in correct format (i.e. reports, essays)

Approved by: Lisa Somers