1965-HKRS30-8-55_Part04 — Page 15

Letter tel.

Standard of

20

5. During the examination in the sight tests candidates will not be allowed to use spectacles, contact lenses, or glasses of any kind or any other artificial aid to vision. They will however, have the option of using either eye separately or both eyes together.

I-Letter Test,

1. The first test which the candidate required to undergo is the letter test conducted on Snellen's principle by means of sheets of letters. Each sheet contains 7 lines, the 5th, 6th and 7th lines corresponding to standards $110, 5/7.5 and 5/5 respectively.

With the exceptions indicated below every candidate will be required to vision required. read correctly five of the six letters in the sixth line and four of the seven letters

in the seventh line, at a distance of 16 feet from the eyo.

Method of teseling,

Falfure

Lower Standard required in

de luxe,

Prevention of deception.

Appstatom,

3. Artificial illumination will be used. The test sheets will be hung on a wall at a height of five or six feet from the floor, with electric fluorescent strip lighting placed horizontally and suitably screened so that the light falls directly on two lines of letters on the sheet.

The test room will be moderately illuminated and care taken that there at no glaring lights or bright objects in the candidate's field of vision. Extreme contrast between the illuminated test card and the background will be avoided.

When the candidate has taken up the correct position one of the sheets will be exposed, and be will be asked to read the letters on the sheet from left to right, `beginning at the top and going downwards.

If at the conclusion of the test the candidate is found to reach the required standard, he will be considered to have passed and will then proceed to the lantern test unless he holds a certificate of competency.

4. If the candidate fails to reach the standard required on the first sheet he will be tested with at least four sheets and the following alternatives explained to him-

(60) he may break off the examination and present himself for re-examinatio

in not less than three months in which case a certificate of failure wil be issued to him; or

(b) he may proceed to the lantern teat. In this case a record of all mistakes made in the letter test and all mistakes, if any, made in the lantern test will be referred to the Examining Board (see paragraph 13) who will decide whether the candidate has passed of failed in form vision. Note: Failure to pass the letter lest is due to some defect in form vision, which is sometimes curable. Whenever, therefore, a candidate fails to pas this test he will be advised to consult an ophthalmic surgeon with a view to ascertaining the nature of the defect in his form vision, and whether it is curable.

5.

Candidates who are in possession of certificates of competency obtained before 1st January, 1914, may be regarded as passing the letter test they can read correctly with either eye or both eyes together 3 of the 5 letters on the nic line of a test sheet.

6. Care will be taken by varying the order of the test sheets and by every other means to guard against the possibility of any deception on the part of the candidate.

U-Lantern Test.

7. A lantern provided by the Ministry of Transport and a mirror are used for this test. The test is conducted in a room so darkened as to exclude all daylight. The lantem will be placed directly in front of the mirror, so that the front part of the lantern is exactly ten feet from the mirror, and in such a post- tion that the lights reflected in the mirror show clearly when viewed by the candidate on the left of the lantern.

21

8. If a candidate makes mistakes at the beginning of the lantern test he Docksca will be kept in a completely or partially darkened room for at least a quarter of Adimention. an hour and will then begin the test again.

5. The lantern supplied for the examination is so constructed as to allow blushad of que large or two small lights to be visible, and is fitted with 12 glasses of three resume. colours-red, white and green. At the beginning of the examination the can- didate will be shown a series of lights through the large aperture, and he will be required to name the colours as they appear. Care will be taken in showing the white light to emphasize the fact that this light is not a pure white. If a candidate makes a mistake of calling this light "red", a proper red light will be shown immediately after and his attention" directed to the difference between the two.

After a series of lights through the large aperture has been shown, two com- pete circuits and one broken circuit with the two small apertures will be made, the candidate mamning the colours of each set of two lights from left to right.

10. (1) If a candidate does not make any mistake in the lantern test after Pass or failure. passing the letter test he will be deemed to have passed the whole examination and the examiner will issue a certificate to that effect.

(2) If, with either the large aperture or the two smaller apertures of the Janteru, & candidate mistakes red for green or green for red, he will be considered to have failed in the lantern test.

(3) If a candidate makes any other mistake in this test, that is to say, if he call white "red" or red "white" or confuses green and white, his case will be referred to the Examining Board, and he will be told that the decision as to whether he is passed or failed, or must undergo a further examination, will be communicated to him in due course. Pending the receipt of Instructions from the Examining Board, a candidate for a certificate of competency will only be allowed to proceed with such examination on the express understanding that the latter examination will be cancelled in the event of failure in the sight testi.

(4) Candidates will be notified on an appropriate form of their success or failure or else that their case has been referred for further consideration. A pass certificate in the sight test remains valid for three months from the date of the tests.

III--Further Examinations and Appeals.

referred. Çekel.

11. If in any case the Examining Board decides that a further examination Purber i necessary before a candidate can be passed or failed, the candidate will be maden informed of the date and time of the examination. No additional fee will be charged for this further examination.

Candadon:

12. A candidate who is adjudged by the Examiner to have failed the lantern Specta last, and who is not referred for further examination (see paragraph 10(3)), may appeal cases, appeal to the Director for a special examination, on payment of the prescribed fce, which will be returned to him if he passes.

13. The further and special examinations will be conducted by an examiner. Examine opether with the Government's specialist adviser on eyesight.

Bourd.

me further

14. Candidates who are referred for further examination, or who appeal Punctur from the result of the lantern test, are notified by the Director or the Govern- dance ment Ophthalmic Specialist of the time at which they should attend for special and appear examination. They are expected to inform the Director whether or not they staralnicione. will be able to attend at that time. Any candidate who, after informing the Director that be will attend, fails to appear at the time appointed, will be liable to have his examination postponed indefinitely, and also if an appeal candidate, will forfeit the appeal for referred to in paragraph 12 and will be required to deposit a further fee of the same amount before further arrangement can be made for his special examination.