Trainee Assessment Visual system and vision impairment · Trainee Assessment Visual system and vision impairment Unit standard Version Level Credits 24895 Describe the visual system

Trainee Assessment

Visual system and vision impairment

Unit standard Version Level Credits

24895 Describe the visual system and vision impairment

2 3 5

Your name:

Your workplace:

Your date of birth:

NSN number (if you know it):

Declaration

I was told about and understand the assessment requirements and appeals process.

I have prepared my answers myself.

Any evidence I have provided as my own, I produced myself.

I understand that this assessment may be used for moderation and quality control purposes.

I understand that when I achieve this unit standard my result will be registered with the

New Zealand Qualifications Authority.

I confirm the above declaration: Yes No Date:

Visual system and visual impairment (US 24895 v 2) TraineeAssessment © Careerforce – Issue 3.1 – August 2016 2

Assessment summary (completed by assessor)

Trainee's performance summary

Assessment tasks Assessor signature Date achieved

Task 1: The structure and function of the eye

Task 2: Refraction and vision

Task 3: The effects of vision impairment

Task 4: Support services

Unit standard results

I have assessed the trainee and confirm the requirements have been met to demonstrate competency in:

Unit Standard(s) Version Level Credits

24895 Describe the visual system and vision impairment

2 3 5

Assessor name: Assessor number:

Signature: Date:


Trainee information

Before you start:

The assessor/observer will meet with you and talk about what you need to do.

Read through the Careerforce workplace learning and assessment guide if you need more

information about the assessment process.

As you go:

Follow instructions for each task.

For knowledge assessment questions you can choose to write your answers or your assessor may record your verbal answers for you.

If you need help with this assessment, please contact your assessor.

When you finish:

Make sure you have completed any parts where the assessor/observer has said you need

more work.

Appeals

If you wish to appeal against the assessment result or process, talk to your assessor. If you are still not satisfied, you can appeal to Careerforce by completing the assessment result appeal form that can be found online at www.careerforce.org.nz/contact/forms

Feedback

Careerforce regularly reviews our assessment and learning resources. As a user, we would appreciate feedback on how you found it. Feedback can be provided to Careerforce via:

our online feedback form at www.careerforce.org.nz/contact/resource-assessment-feedback

email to [email protected]


Task 1: The structure and function of the eye

For this task, you need to show your understanding of the structures and functions of the eyes.

1 Label the different parts of the eye marked on the diagram below.

1 2

3 4

5 6

7 8

9 10


2 What is the function of each of the following parts of the eye?

Part of the eye Function

Cornea

Aqueous

Iris

Pupil

Continued next page



Lens

Vitreous

Retina

Macula

Optic nerve

Continued next page



Visual cortex

3 Complete the diagram below to show how different parts of the eye work together in the process of seeing an object, then describe the process you have shown.

Description of the process:


4 What changes occur in the visual system during each of these life stages?

For each life stage, describe at least two changes. The first one has been done for you.

Life stage Changes in development of vision

1 month Eyes start to fix on a person’s face whilst feeding. Eyes follow large moving objects.

Infancy (1-12 months)

Childhood (12 months to puberty)

Adolescence (puberty to adulthood)

Adult (post adolescence to old age)

Older adult (old age)


Task 1: Assessor feedback to trainee

When the assessor agrees you have completed this task successfully, they will sign it off on the assessment summary page at the front of this assessment.


Task 2: Refraction and vision For this task, you need to show your understanding of refraction including normal refraction and errors in refraction and how they can be corrected.

1 Describe the process of refraction (change in light path) that occurs in a normal eye.


2 Complete the table below to describe the effects of errors in refraction on vision and how they can be corrected.

Myopia

How does myopia change the pathway of light into the eye?

What is the effect on a person’s vision?

What type of lens would you use to correct this error?

How does the lens correct the error?


Hyperopia

How does hyperopia change the pathway of light into the eye?





Astigmatism

How does astigmatism change the pathway of light into the eye?







Task 3: The effects of vision impairment For this task, you need to describe the effects of vision impairment on a person and their everyday life.

1 Complete the table below to describe how common vision impairments have an effect on a person’s everyday use of vision.

Vision impairment Effect on the everyday use of vision

Hyperopia

Myopia

Astigmatism

Colour sensitivity

Amblyopia


2 What is the difference between blindness and vision impairment in terms of the impact on the person?

3 What are the potential effects of vision impairment on a person’s lifestyle?

Describe two impacts of vision impairment on each of the following aspects of a person’s lifestyle.

Aspect Impact of vision impairment

Psychological

Social

Continued next page


Educational

Recreational

Vocational

4 Identify three common misconceptions about vision impairment and outline their impact on people with vision impairments.

First misconception:

How this impacts on the person:

Second misconception:


Continued next page


Third misconception:





Task 4: Support services

For this task, you need to describe the services and roles which support people with vision impairments.

1 Outline the role and area of expertise for each of these vision impairment specialists.

Specialist Role and area of expertise

Ophthalmologist

Optometrist

Optician


Orthoptist

2 Describe agencies or support services for people with vision impairment.

You must identify three agencies or support services. For each one you need to provide:

details of the services they offer.

the type of person they support (for example, children).

If you have already compiled this information for your workplace, ask an observer to observe this work and sign off the form following.

First agency or support service:

Services offered:

Who the services are for?

Continued next page


Second agency or support service:

Services offered:


Third agency or support service:

Services offered:



Observation

The trainee supplies details of three support services or agencies that assist vision impaired people. Information must include some of the services offered and what type of people they support.

Assessor/observer to complete

Date:

Observation comments from the observer or assessor

General comments:

If you are an observer, please give your details as the assessor may wish to contact you.

Observer’s name: Designation:

Signature: Date:

Contact details (phone/email):



Documents

Trainee Assessment Visual system and vision impairment · Trainee Assessment Visual system and vision impairment Unit standard Version Level Credits 24895 Describe the visual system