OPT204 - Eyeglass Fabrication I

Outline info
Last revision date 2017-11-21 11:33:20.269
Last review date 2017-11-21 11:33:24.521

Subject Title
Eyeglass Fabrication I

Subject Description
This subject is designed to give students the opportunity to apply the theory of finishing single vision spectacles in a laboratory setting. Students learn procedures for the safe operation of lens edging equipment and blocking devices, use of the lensometer and clock gauge and the final verification of the lab order. Emphasis is placed on accuracy and industry tolerances.

Credit Status
One credit 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.  Discuss the protocol for handling hazardous material in the workplace
2.  Use optical tools and instruments to measure lens parameters in preparation
     for edging.

4.  Calculate required decentration and minimum blank size.

5.  Use the lensometer to neutralize and mark the optical centre of single vision

6.  Layout and block single vision lenses.

7.  Edge lenses into various frames of various material and mountings.

8.  Insert lenses into frames and bench align finished eyeglasses.

9.  Verify finished single vision eyeglasses with the work order ensuring
     compliance with the ANSI Standard Lens Tolerances.

10.Package and prepare eyeglasses for delivery.

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.

OPT106, OPT202
**  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
- Basic Surfacing Process
- WHMIS in the ophthalmic lab
- Cleaning and maintaining edgers and lab equipment
- Clock Gauge
- Layout and Blocking finished lenses
- Measuring centre thickness and edge thickness using thickness caliper
- Pattern Making
- Centration Skills
- Edging
- Bench alignment and proper pantoscopic tilt
- Electronic (Patternless) Edgers   
- Impact Resistance lenses
- Verification and delivery of finished spectacles
- Technical standards for prescription eyeglasses

Mode of Instruction
Lecture Forum: Will provide background theory relevant to the practical laboratory applications.

Hands on Practice: Will enable students to develop skills in the spectacle fabrication process.

Prescribed Texts
Essentials for Ophthalmic Lens Finishing,  2nd Edition; Clifford W. Brooks; Butterworth
OPT 204 Fabrication I Manual

Reference Material
System For Ophthalmic Dispensing 3rd Edition, Brooks & Borish; Butterworth

Required Supplies
Students are required to bring the following tools to all classes and examinations:

P.D. Ruler
Pen Light
Clock Gauge
Screwdriver (Flat / Star)
Thickness measuring Calipers
Opthalmic Lens Marker (or China Marker)

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
In Seneca College Health Science Programs, a minimum grade of "C"
(60%) is required for Promotion.

In Class Assignments 10%
Quiz 5%
Mid-Term 35%
Final Exam 50%
Total  100%

The final grade for this subject will be designated as follows SATISFACTORY / UNSATISFACTORY

*Students must have 70% on the finishing portion and 80% on the lensometer portion of the final exam for a Satisfactory Grade to be assigned.

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
stating the illness, along with a written request for a make-up 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 course instructor.
Cheating and Plagiarism
Using another's ideas as one's own, as well as copying directly from books, magazines, reports, and other sources without acknowledgement is plagiarism.
Cheating and plagiarism constitute unacceptable behaviour.  Such offenses occur when a student violates the procedures governing the adminstration of examination,
tests or other means of evaluating student achievement in a subject or program.

A promotion meeting will be convened to review alleged instances of cheating or plagiarism.

The minimum penalty for a first offense during a student's attendance at the College will be loss of credit of the evaluation involved or a more stringent penalty
consistent with the circumstances.

A second offense may result in the immediate expulsion of the student from the College for the remainder of the current semester and two subsequent academic semesters.

Where there is sufficient evidence to assess a penalty, all relevant information will be maintained in the student's file.  The student has the right to appeal the decision
of the College, consistent with academic policy.

Approved by: Lisa Somers