Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

HLTOPT407C Mapping and Delivery Guide
Apply surface coatings to ophthalmic lenses

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency HLTOPT407C - Apply surface coatings to ophthalmic lenses
Description This unit of competency describes the skills and knowledge required to apply hard and multi coating to ophthalmic lenses
Employability Skills This unit contains Employability Skills
Learning Outcomes and Application The application of knowledge and skills described in this competency unit related to functions necessary for working within optical technology Work at this level may be undertaken independently or under guidance and/or supervision
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Not Applicable
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Check quality of lens
  • Ensure quality of lens surface
  • Ensure optical quality of lens is within acceptable tolerances
  • Ensure lens complies with prescription needs and fitting criteria of prescription
       
Element: Apply clean-room practices
  • Ensure appropriate clean-room practices and procedures are implemented
  • Identify and remedy unwanted contaminants in clean-room area
  • Identify compliance of wearing appropriate personal protective equipment
       
Element: Apply dirty-room practices
  • Ensure all solvents, acids and cleaning products are labelled in compliance with OH&S criteria and Material Data Safety Sheets
  • Recognise 'hazards' and address relevant hazardous situations appropriately
  • Ensure all safety practices are complied with in ordering, use, handling and storage of solvents, acids and cleaning products
  • Ensure all legislative and environmental regulations are adhered to in the disposal of solvents, acids and cleaning products
  • Ensure use of appropriate PPEs within the dirty-room environment
       
Element: Identify type of coating
  • Interpret lens order
  • Arrange appropriate scheduling for batch coating processing
  • Select appropriate coating process
       
Element: Apply coating to lenses
  • Prepare lens for coating, ensuring holding apparatus will not interfere with quality of coating
  • Apply hard and/or primer coating to specifications
  • Cure lens coating according to manufacturers' recommendations
  • Complete all quality checks on substratum ensuring compliance to needs of vacuum deposition process
  • Apply vacuum coating
       
Element: Check coating finish
  • Check light transmission of coating in line with manufacturer/suppliers recommendations and/or organisational policies and procedure
  • Check lens surface in line with manufacturer/ supplier recommendations and/or organisation policies and procedure
  • Check surface quality in line with manufacturer/ supplier recommendations and or organisation policies and procedure
       
Element: Despatch lens
  • Package lens in order that no lens wastage occurs
  • Despatch lens in accordance with the lens order
  • Confirm completion of job
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for this Training Package.

Critical aspects for assessment and evidence required to demonstrate this competency unit:

The individual being assessed must provide evidence of specified essential knowledge as well as skills

Observation of actual or simulated workplace performance is essential for assessment of this unit

Consistency of performance should be demonstrated over the required range of situations relevant to the workplace

Where, for reasons of safety, space, or access to equipment and resources, assessment takes place away from the workplace, the assessment environment should represent workplace conditions as closely as possible

Context of and specific resources for assessment:

Resources essential for assessment include:

access to an optical appliance manufacturing workplace

Method of assessment

Observation in the work place (if possible)

Written assignments/projects or questioning should be used to assess knowledge

Case study and scenario as a basis for discussion of issues and strategies to contribute to best practice

Access and equity considerations:

All workers in the health industry should be aware of access and equity issues in relation to their own area of work

All workers should develop their ability to work in a culturally diverse environment

In recognition of particular health issues facing Aboriginal and Torres Strait Islander communities, workers should be aware of cultural, historical and current issues impacting on health of Aboriginal and Torres Strait Islander people

Assessors and trainers must take into account relevant access and equity issues, in particular relating to factors impacting on health of Aboriginal and/or Torres Strait Islander clients and communities

Related units:

It is recommended that this unit should be assessed in conjunction with or after the following units:

HLTOPT401C Perform technical procedures for the production of ophthalmic appliances

HLTOPT406B Edge and fit ophthalmic appliances

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

This describes the essential skills and knowledge and their level required for this unit.

Essential knowledge:

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:

Chemical processes involved in lens coating according to material safety data sheets

Cleanliness

Lens types and lens materials

Manufacturing/process waste disposal

Process flows and batch production methodologies

Protective clothing

Safe ordering, use, handling, storage and disposal of chemicals in accordance to supplier's recommendations and or Material Safety Data Sheets

Safety process

Standard operating procedures in line with manufacturer/supplier and/or organisation requirements

Types of coatings including all substratum coatings and mulitcoatings

Essential skills:

It is critical that the candidate demonstrate the ability 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 the ability to:

Apply good housekeeping practices

Communicate with others

Follow WHS and standard operating procedures

Manage process flow

Work independently

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

The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts.

Coatings may include:

Anti reflection coatings

Hard coatings

Mirror coatings

Other substratum used in the vacuum deposition process

Appropriate coating process may include but is not limited to:

Lens preparation

Stripping

Thickness control (substratum)

Application of substratum

Batch processing methodologies

Selection of appropriate coating crucible

Selection of correct coating 'stack'

Equipment servicing, maintenance process may include but is not limited to:

Replacement of hard coatings

Vacuum deposition chamber cleaning procedures

Associated equipment cleaning and replacement procedures

Coating crucible replacement .

Vacuum coating process may include:

Hydrophopic coating application

Ultra-sonic cleaning procedures

hangers

solvents

times

Solvent and acid ordering, use, handling, storage and disposal in accordance to appropriate legislative and environmental regulations

Clean-room compliance

Complying with clean-room/PPE practices and procedures

e

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Ensure quality of lens surface 
Ensure optical quality of lens is within acceptable tolerances 
Ensure lens complies with prescription needs and fitting criteria of prescription 
Ensure appropriate clean-room practices and procedures are implemented 
Identify and remedy unwanted contaminants in clean-room area 
Identify compliance of wearing appropriate personal protective equipment 
Ensure all solvents, acids and cleaning products are labelled in compliance with OH&S criteria and Material Data Safety Sheets 
Recognise 'hazards' and address relevant hazardous situations appropriately 
Ensure all safety practices are complied with in ordering, use, handling and storage of solvents, acids and cleaning products 
Ensure all legislative and environmental regulations are adhered to in the disposal of solvents, acids and cleaning products 
Ensure use of appropriate PPEs within the dirty-room environment 
Interpret lens order 
Arrange appropriate scheduling for batch coating processing 
Select appropriate coating process 
Prepare lens for coating, ensuring holding apparatus will not interfere with quality of coating 
Apply hard and/or primer coating to specifications 
Cure lens coating according to manufacturers' recommendations 
Complete all quality checks on substratum ensuring compliance to needs of vacuum deposition process 
Apply vacuum coating 
Check light transmission of coating in line with manufacturer/suppliers recommendations and/or organisational policies and procedure 
Check lens surface in line with manufacturer/ supplier recommendations and/or organisation policies and procedure 
Check surface quality in line with manufacturer/ supplier recommendations and or organisation policies and procedure 
Package lens in order that no lens wastage occurs 
Despatch lens in accordance with the lens order 
Confirm completion of job 

Forms

Assessment Cover Sheet

HLTOPT407C - Apply surface coatings to ophthalmic lenses
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

HLTOPT407C - Apply surface coatings to ophthalmic lenses

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: