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23 August 2024 – (VS_Oct23_ENG_Th_Tec1) – OCCUPATIONAL VISION SCREENING – THEORY EXAM
Time allowed: 2 hours Marks: 100
For this paper you need: a piece of scrap paper for calculations, a pen and a calculator.
Instructions to Learners:
- There are 45 questions for 100 marks.
- Marks are shown to the right of each question, e.g. 2 point(s)
- For certain questions you need to choose more than one answer. The points will indicate how many answers you need to choose.
- Pass mark is 60%
- Answer every question.
EXAM-MASTER – (VS_Oct23_ENG_Th_Tec1) – OCCUPATIONAL VISION SCREENING – THEORY EXAM Copy
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Question 1 of 45
1. Question
2 point(s)Choose two main components which is part of the occupational exposure risk profile for visual hazards:
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Question 2 of 45
2. Question
1 point(s)A far visual acuity test result worse than 6/6 for any eye, is deemed an impairment for visual acuity and needs referral.
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Question 3 of 45
3. Question
1 point(s)Objects that are nearby are out of focus:
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Question 4 of 45
4. Question
1 point(s)When light enters the eye, this part of the eye bends and focuses incoming light directly on the retina to produce the clearest image. What part of the eye is being described?
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Question 5 of 45
5. Question
1 point(s)Glaucoma leads to loss of vision due to damage to the optic nerve.
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Question 6 of 45
6. Question
1 point(s)Ionizing radiation can lead to acute corneal erosions.
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Question 7 of 45
7. Question
1 point(s)Visual related hazards should be included in the hazard identification and risk assessment process.
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Question 8 of 45
8. Question
1 point(s)Semi-automated vision screeners provide a complete picture of an employee’s visual health.
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Question 9 of 45
9. Question
1 point(s)Farm workers are exposed to non-ionizing radiation.
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Question 10 of 45
10. Question
1 point(s)When an abnormality is detected while conducting vision screening tests, to whom does the technician refer the employee to?
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Question 11 of 45
11. Question
1 point(s)The National Road Traffic Act requires the following minimum visual requirement for a light motor vehicle driver:
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Question 12 of 45
12. Question
5 point(s)Organize the hierarchy of controls in order of the highest level of protection to the lowest level of protection.
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Elimination
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PPE
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Engineering controls
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Substitution
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Administrative controls
View Answers:
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Question 13 of 45
13. Question
5 point(s)Choose five components contributing to quality assurance of occupational health vision screening test:
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Question 14 of 45
14. Question
1 point(s)If an employee’s vision is 6/20, it means a person with 6/6 vision could read the same line at 20m away.
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Question 15 of 45
15. Question
1 point(s)When assessing near vision, different charts can be used for the tests. Which one listed below cannot be used to test near vision?
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Question 16 of 45
16. Question
1 point(s)When conducting a colour vision test with the Ishihara chart, how far should the chart be placed from the employee?
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Question 17 of 45
17. Question
1 point(s)Using Figure B below, what is incorrect?
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Question 18 of 45
18. Question
1 point(s)The Tumbling E Chart is used for near visual acuity and employees who are unable to read.
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Question 19 of 45
19. Question
1 point(s)In the following picture, what aspect is negatively influencing the colour function result:
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Question 20 of 45
20. Question
7 point(s)What in the following picture will you correct in order to get accurate far visual acuity result?
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Question 21 of 45
21. Question
8 point(s)Match the words below to the best description in the table below
Click and Drag the letter e.g. “A” in the grey blocks to the space provided to the right of the term at the bottom.
A – Chemical exposure E – Orbital fractures B – Ultraviolet keratitis F – Corneal Abrasions C – Hyphema G – Xanthelasma D – Foreign Body – Metal, wood, or plastic H – Occupational history Sort elements
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A scratch on the cornea
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Burns from splashing, which can be an irritant, an alkali or acid
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Embedded in the cornea
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‘sunburn’ of the cornea
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Blunt force trauma causing bleeding in the anterior chamber of the eye
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A broken bone in the eye socket
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Small yellow-like elevations of the skin above the eyes or near the nose that may also signal high cholesterol levels
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History of where the employee worked, his job title and exposure since his first employment until current employment
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Question 22 of 45
22. Question
1 point(s)Indicate whether the following statements are true or false:
After completing the visual assessment, normal and abnormal findings imply the same as fail or pass of the vision screening test.
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Question 23 of 45
23. Question
1 point(s)Indicate whether the following statements are true or false:
Arcus senilis affects the employee’s ability to see.
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Question 24 of 45
24. Question
6 point(s)Match the description below to the label in the table below these descriptions:
Click and Drag the letter e.g. “A” in the grey blocks to the space provided to the right of the term at the bottom.
A – It is the process of adjusting the focal length of a lens E – Misalignment of the eyes B – The pupils get smaller F – Pupils increase in size C – Hirschberg test G – What you can see if your eyes are fixed on a central point directly in front of you D – Dilation and constriction of pupil H – Lens clarity and health Sort elements
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- H
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- G
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Strabismus
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Red light reflex
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Accommodation
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Constriction of the pupil
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Corneal light reflex
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Peripheral vision
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Question 25 of 45
25. Question
1 point(s)Testing an employee’s colour vision with an Ishihara 24 plate, the employee makes six errors which should be interpreted as?
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Question 26 of 45
26. Question
2 point(s)Choose two quadrants to test when testing depth perception:
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Question 27 of 45
27. Question
1 point(s)Vision screening technicians should make a diagnosis after completing the vision screening test.
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Question 28 of 45
28. Question
8 point(s)Choose the correct term below for the description in the table underneath.
Click and Drag the letter e.g. “A” in the grey blocks to the space provided to the right of the description at the bottom.
A – Action Criteria E – Vision protection program B – Exclusion criteria F – Grandfather clause C – Health surveillance G – Driver code 8 D – Merchant Shipping Regulation H – Employers Sort elements
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A provision on which an old rule continues to apply to some existing situations while a new rule would apply to all future cases.
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Disqualifying employees from certain job type considerations
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Is done to prevent vision and eye injuries and not monitor them
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Are required to advise the occupational medical practitioners of the hazards and risks in the workplace.
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Planned regular health assessments based on practice and legislation for all employees exposed to risk.
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In all cases where visual aids (spectacles or contact lenses) are required for the efficient performance of duties, a spare pair must be carried
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A minimum visual acuity required before certain interventions must take place.
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Employees with recent loss of vision in one eye should be temporarily re-assigned until they have successfully adapted to monocular vision.
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Question 29 of 45
29. Question
1 point(s)A taxi driver for the company has the following vision result of:
Uncorrected: LFVA = 6/12 RFVA = 6/30 BVA = 6/25
Corrected: LFVA = 6/9 RFVA = 6/9 BVA = 6/9
Uncorrected: LNVA = 6/12 RNVA = 6/30 BNVA = 6/25
Corrected: LNVA = 6/6 RNVA = 6/9 BNVA = 6/6
PEARRLA, normal visual fields, normal light reflex, normal blink reflex, normal cardinal movements, the physical examination which was normal, normal colour vision, normal convergence and divergence, and normal depth perception
Does he meet the minimum requirements to work as a taxi driver?
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Question 30 of 45
30. Question
1 point(s)Indicate if the following statement is True or False:
The OHP/technician should not compare the current visual screening results with previous vision screening results.
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Question 31 of 45
31. Question
1 point(s)Indicate if the following statements are true or false:
When using standardised templates as provided with vision screening equipment, the technician can accept the pass and fail criteria on the template as applicable to this employee’s job title.
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Question 32 of 45
32. Question
1 point(s)Indicate whether the following statements are true or false:
The technician/assistant should ensure that the order of the visual testing completed on semi-automated equipment, matches the order of the results on the report template.
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Question 33 of 45
33. Question
1 point(s)Indicate whether the following statements are true or false:
When a mining employer seizes his operation, all occupational health records should be delivered to the Medical Inspector (DMRE)
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Question 34 of 45
34. Question
1 point(s)Indicate whether the following statements are true or false:
Different report templates are interchangeable between different makes of orthorators.
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Question 35 of 45
35. Question
1 point(s)Verify the result for far visual test for both eyes on this report example below:
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Question 36 of 45
36. Question
2 point(s)Verify the result for the binocular vision and indicate if it is normal or abnormal.
Select two answers
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Question 37 of 45
37. Question
1 point(s)Verify the result for far visual test for the right eye on this report example below:
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Question 38 of 45
38. Question
2 point(s)Verify the result for the near visual acuity test for the left eye and indicate if it is normal or abnormal.
Select two answers
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Question 39 of 45
39. Question
5 point(s)Choose five key findings that should appear on a group report for management with regards to vision screening results:
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Question 40 of 45
40. Question
1 point(s)For which period of time should Occupational Health records be kept?
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Question 41 of 45
41. Question
1 point(s)Which criteria causes non-payment of compensation when a work-related injury or disease was diagnosed?
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Question 42 of 45
42. Question
1 point(s)Compensation is paid for injury or for diseases caused by work exposures/incidents for the following except?
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Question 43 of 45
43. Question
8 point(s)Choose 8 criteria which the OHP should address when managing a vision screening result with an employee
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Question 44 of 45
44. Question
8 point(s)Match the terms below, to the descriptions in the table underneath?
Click and Drag the letter e.g. “A” in the grey blocks to the space provided to the right of the term at the bottom.
A – Vision screening primary goal F – Wire test/Contrasts and hues B – Vision conservation programme G – Normal visual fields C – Normal light reflex H – Normal depth perception D – Normal 9 cardinal fields of gaze I – Holmes-Wright type B lantern (seafarers) E – Primary colours Sort elements
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Colour vision test for electricians according to the recommended vision standards by type of occupation
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90 degrees temporal, 50 degrees superior and nasal, 60 degrees inferior
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Colour vision test for forklift drivers according to the recommended vision standards by type of occupation
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40 seconds of arc or better
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Safeguarding visual health, prevention of visual impairment and injury and provide appropriate visual protective measures.
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To maintain employee’s optimal visual health and ensuring they meet the minimum visual requirements in the workplace
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Question 45 of 45
45. Question
1 point(s)All visual functions tests should be conducted on an employee without taking into consideration if the employee needs the specific test or not.
