Course Title: Perform edging and fitting

Element:

1. Prepare for edging and fitting

Element:

2. Operate optical equipment

Element:

3. Perform edging and fitting

Element:

4. Perform frame adjustments, repairs and lens treatments

Element:

5. Utilise computer technology

Elements

Performance Criteria

Related Assessment Tasks

Assessment Method/

Types of Evidence  

1.2    Prepare the environment

Practical Tasks / Written Tasks

Practical Tasks / Online Assessment

1.4   Use personal protective equipment if required

Practical Tasks / Written Tasks

Practical Tasks

2.2.  Clean equipment and attachments in accordance with manufacturer’s requirements and infection control procedures

Practical Tasks

Practical Tasks

2.4.  Store equipment and attachments in accordance with manufacturer’s requirements and organisation policies and procedures

Practical Tasks

Practical Tasks

3.2.  Edge lenses

Practical Tasks

Practical Tasks

3.4.Use special hand-edging techniques to modify lenses for change-overs and centring corrections

Practical Tasks

Practical Tasks

3.6. Edge, drill and mount spectacle lenses to rimless frames

Practical Tasks

Practical Tasks

4.2. Standard alignment of frames

Practical Tasks

Practical Tasks

5. Ultilise computer technology

5.1.Select appropriate technology andsoftware applications to achieve the requirements of the task

Practical Tasks / Written Tasks

Practical Tasks / Online Assessment

5.3. Use technology according to organisation requirements and in a way which promotes a safe work environment

Practical Tasks

Practical Tasks

5.5.  Identify equipment faults and take action in accordance with manufacturer’s instructions or by reporting fault to designated person

Practical Tasks / Written Tasks

Practical Tasks / Online Assessment

5.2   Check the spectacles on the focimeter to verify powers, axes and centration

Practical Tasks

Practical Tasks

5.4   Adjust the frame to standard alignment

Practical Tasks

Practical Tasks

5.6   Clean spectacles

Practical Tasks

Practical Tasks

Skills must have been demonstrated in the workplace or in a simulated environment that reflects workplace conditions.

The following conditions must be met for this unit:

·         use of suitable facilities, equipment and resources, including:

automatic edgers

hand edgers

blockers

markers

focimeters (lensmeters)

nylon groover

drill

clavulus

parallel rules

millimetre (PD) rules

frame tools

frames

lenses

adhesive and protection pads/films

formers

frame heater

soldering unit

tint bath

dyes

·         modelling of industry operating conditions, including:

integration of time constraints

integration of problem solving activities

Practical Tasks

Practical Tasks

Performance Evidence 

This includes the ability to:

·         Apply drilling techniques

·         Apply grooving techniques

·         Calculate minimum size uncut (MSU):

·         MSU using centration chart and by calculation to allow for PD and decentration for prism

·         Correctly and accurately use a focimeter (lensmeter) including:

·         correct neutralisation

·         determination of additions

·         determination of axes

·         determination of centration

·         determination of powers

·         determination of prism

·        
Eliminate errors in templates

·         Fit standard nylon rims

·         Hand edge using both hand bevelling techniques and safety chamfering

·         Handle glass and plastic lens material

·         Handle metal and plastic frame material

·         Identify and explain the nature of vacuum coatings

·         Interpret manufacturer’s transmission curves

·         Interpret transmission and absorption data

Make templates using:

hand techniques

machine techniques

Mount lens

Repair and service nylon rims

Take into account opportunities to address waste minimisation, environmental responsibility and sustainable practice issues

Transpose a prescription

Undertake digital fame tracing

Undertake automatic edging including:

blocking/chucking systems

edging wheel designs and characteristics

machine designs

machine operation

Undertake frame adjustments

Undertake frame servicing

·         Undertake special hand edging techniques including:

·         changeovers

·         nasal cut and nasal add (antinasal)

·         Use appropriate techniques to inset lens and fit frames

·         Use lens samples and to match tint samples

·         Use problem solving techniques

·         rectifying off-axis lenses

reducing unwanted vertical and/or horizontal prism

Practical Tasks / Written Tasks

Practical Tasks / Evidence Log

Practical Tasks / Online Assessment

The candidate must be able to demonstrate essential knowledge required to effectively do the task outlined in elements and performance criteria of this unit, manage the task and manage contingencies in the context of the identified work role

This includes knowledge of:

·         Drilled rimless frames including mounts and rimless types and equipment needed Frame measurement systems including boxing and datum

·         Filter and tinted lens processes including:

·         Australian standards

·         plastic lens tinting including dyes and tint types, equipment, preparation, problems and solutions

·         transmission testing including equipment and instrumentation, equipment limitations and Australian standards

·         Glazing techniques

·         Impact resistant safety lenses including:

·         advantages and disadvantages

·         Australian standards for both general purpose and industrial use

·         evaluation of materials including glass, CR39, higher index plastics, polycarbonate and laminates

·         impact resistance

·         impact testing requirements, conditions and procedures

·         principles and processing of thermal and chemical toughening

·         problems and special lens requirements

·         Relevant Australian Standards

·         Scope of metal and plastic frame material including heating, manipulation, adjusting, handling and repair

·         Standard nylon rims including the equipment needed

·         The properties of lens

·         The use of impact resistant protective lenses

·         Vacuum coatings including:

·         absorptive (tinted) coatings

·         handling, cleaning and care of coatings

·         manufacturing processes

·         multiple layer AR coatings

·         single AR coating

surface reflections and ghost images

Written Tasks

Written Tasks

On-line Assessment

On-line Assessment

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.