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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Elements define the essential outcomes
2. Place optical appliance orders
   • Interpret and transpose optical prescriptions
   • Identify and follow up on discrepancies
   • Complete ordering procedures using correct optical terminology and documentation
   • Respond to technical queries about optical appliance orders
3. Check optical appliance orders
   • Verify details of order received against client record
   • Organise required equipment and materials
   • Check the spectacles on the focimeter to identify and verify powers, axes and centration
   • Determine any axis or centring error and apply Australian standards tolerances
   • Check lens surface for scratching and aberrations
   • Adjust frames to standard alignment and check for strain as appropriate
   • Clean spectacles using cleaning agents suited to the material
   • Fit appliances from checked orders to client
4. Service optical appliance orders
   • Identify maintenance and adjustment requirements for optical appliances
   • Make minor repairs and identify when work needs to be referred to specialist frame repairer
   • Make standard frame adjustments to optical appliances
   • Fit and edge lenses according to scope of own job role and organisation requirements
5. Maintain equipment
   • 4.1 Clean equipment and attachments in accordance with manufacturer's recommendations and infection control procedures
   • 4.2 Complete routine maintenance procedures on equipment in accordance with manufacturer's requirements
   • 4.3 Store equipment and attachments in accordance with manufacturer's recommendations and organisation policies and procedures

Performance Evidence

The candidate must show evidence of the ability to complete tasks outlined in elements and performance criteria of this unit, manage tasks and manage contingencies in the context of the job role. There must be evidence that the candidate has:

transposed at least 10 different prescriptions

placed orders for all of the following processes and materials and frames

spectacle lens edging

plastic frames

metal frames

nylon (nyl-tag) rimless

tinted lenses

checked at least 10 different orders using focimeter, other equipment and standard checking processes, including:

calculated minimum size uncut (MSU) using centration chart and by calculation to allow for PD and decentration for prism

identified completed spectacle lens thickness

used problem solving techniques in reducing unwanted vertical and/or horizontal prism and rectifying off-axis lenses

interpreted transmission and absorption data including manufacturer’s transmission curves

corrected neutralisation

determined:

additions

axes

centration

powers

prism

edged and fitted lenses, including:

single vision

bifocal and/or progressive

completed all of the following minor repairs, adjustments and frame part replacements:

repaired and serviced nylon rims

lens insertion

fitted frame

soldered metal frames

replaced:

temples

fronts

pads

screws

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Knowledge Evidence

The candidate must be able to demonstrate essential knowledge required to effectively complete tasks outlined in elements and performance criteria of this unit, manage tasks and manage contingencies in the context of the work role. This includes knowledge of:

manufacturer transmission curves and how to interpret them

transmission and absorption data and how to interpret

nature of vacuum coatings on lenses, including:

absorptive (tinted) coatings

handling, cleaning and care of coatings

manufacturing processes

multiple layer anti-reflection (AR) coatings

single AR coating

surface reflections and ghost images

filter and tinted lens processes including:

Australian standards

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

properties of lenses:

curve selection and thickness considerations

Australian standards requirements

frame measurement systems, including boxing and datum

drilled rimless frames including mounts and rimless types and equipment needed

scope of metal and plastic frame material including:

heating

manipulation

adjusting

handling

repair

standard nylon rims including the equipment needed

impact resistant safety lenses including:

advantages and disadvantages

Australian standards for both general purpose and industrial use

evaluation of materials including glass, CR-39 (allyl diglycol carbonate), trivex, higher index plastics, polycarbonate and laminates

impact resistance

lens glazing and grooving techniques

automatic edging processes including:

machine designs

machine operation

edging and fitting techniques for single vision and bifocal/progressive lenses

scope of routine maintenance for optical equipment

workplace processes for equipment maintenance:

routine checking of equipment

preparation of a maintenance program

encouraging feedback from work colleagues

regular back-ups of data

keeping a log book of detected faults

regular occupational health and safety inspections

checking that repairs have been carried out

current and emerging technology used in optical work

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