a. Visual acuity. For visual acuity, the Snellen test is generally recognized as

standard. All candidates should have vision better than or equal to 20/30 in each

eye. If a candidate must use corrective lenses (glasses or contacts) in order to

satisfy the 20/30 vision standard, then such candidate's uncorrected vision should

be no worse than 20/100 in each eye.

b. Color perception.

(i) For color perception, usually the 24-plate edition of the Ishihara Test will be used. Generally, perception color should be deemed acceptable if the candidate correctly reads at least 9 or more of the first 13 plates of the 24-plate edition of the Ishihara Test. This test should be given under lighting conditions approximating a daylight illuminated room (indirect daylight), and not primarily using tungsten or fluorescent lamps. The MacBeth Easel Lamp or the True Daylight Illuminator (TDI), which meets the standards specified by the International Commission on Illumination, or equivalent may be used.

(ii) If the candidate's color perception is deemed unacceptable through the use of this test, and he/she believes the results to be incorrect, then the individual will be informed that he/she has recourse to additional testing and a facility identified where he/she may, at his or her own expense, take the Farnsworth-Munsell 100 Hue-Test.

(a) The division must be notified in writing, with a copy to the appropriate municipal civil service agency, of the candidate's intention to take the Farnsworth-Munsell 100-Hue Test.

(b) The test must be taken at a hospital, medical center, or an academic ophthalmology center having the proper equipment as and the notice must set forth the name of the institution and the state licensed optometrist or ophthalmologist who will administer the examination.

(c) Written approval, or under extenuating circumstances, verbal approval, for the taking of another examination must be received from the division by the candidate before the test is administered and the test must be administered within 45 days of the mailing date of the approval. Such approval shall be granted in every instance provided that the division finds that the hospital, medical center or academic ophthalmology center at which the candidate proposes to be tested has the capability and equipment necessary to perform the test and that the optometrist or ophthalmologist who will administer or interpret the test is properly qualified. In the event that the division finds the facility at which the applicant proposes to be tested is not properly equipped or that the individual who is proposed to administer or interpret the test is unqualified, it shall direct the candidate to a person and/or facility, as conveniently located as practicable, by whom or where such test may be properly administered. Where such an alternate test site is directed, the 45-day period referred to above shall be adjusted or extended to accommodate the candidate's needs and convenience.

(d) If the candidate takes and completes the Farnsworth-Munsell 100-Hue Test, the optometrist or ophthalmologist administering the test shall set forth in writing the results of the test, including the "total error score," the type, nature and degree of any apparent confusion axis, and, if available, the percentile rank of the total error score with reference to the normal population. The optometrist or ophthalmologist shall certify, whether or not the candidate meets the required color perception standards. If upon receipt by the division and by the appropriate municipal civil service agency, the test results demonstrate that the candidate meets said certification, the candidate shall be deemed to have met the color perception requirement.

iii. The test distance stipulated in the Ishihara instruction manual is approximately 30 inches which makes this primarily a near vision task. Although no specific distance is stipulated for the Farnsworth-Munsell 100-Hue Test, it is assumed that it would be approximately the same or closer distance than that used for the Ishihara Test since the test boxes must be within easy reaching and viewing distance from the candidate.

iv. The qualified physician, practitioner, optometrist or ophthalmologist administering the vision test should test at least near visual acuity immediately prior to administration of the Ishihara and Farnsworth-Munsell 100-Hue Tests, respectively, and the visual acuity thresholds noted and reported along with the color vision test scores. The "Rosenbaum

Pocket Vision Screener" or equivalent with testing administered under recommended lighting conditions and at approximately 14 inches from the candidate should ensure accurate results.

v. If the candidate's near visual acuity is within normal limits (Jaeger 2 or Snellen Equivalent of 20/30), the color vision tests should be performed without correction (glasses). For example, even a mild tint in glasses could distort viewing conditions for the color vision tasks and invalidate the test results.

vi. If the candidate is further examined by the use of the Farnsworth Munsell 100-Hue Test, said test should be administered under CIE type C (6740) illumination by using a MacBeth Easel Lamp or the True Daylight Illuminator (TDI) or equivalent. The use of non-specific tungsten or fluorescent illumination is not acceptable for this test. If a candidate fails the initial test, he/she should, upon request, be immediately retested and the lower total error score used for the purposes of qualification. A total error score of not more than 124 is deemed acceptable. The use of any lens by a candidate in order to meet the color perception standards is usually not acceptable.

NOTE: Prior to administration of the Farnsworth-Munsell 100-Hue Test, the optometrist

or ophthalmologist may deem it advisable to administer as an adjunct the Farnsworth Panel D-15 Test. This may be done to familiarize the candidate with the procedural task common to both tests, and supplement interpretation of the required Test. The Farnsworth Panel D-15 Test must likewise be given with the illumination specified for the Farnsworth-Munsell 100-Hue Test.

c. Depth perception. Depth perception shall be sufficient to demonstrate normal stereo depth perception to the correctable standard of 80 ARC seconds.

d. Peripheral vision.