Colour Vision Issues
 

Hi Guys,

New to this forum business but I have some questions and I am hoping you guys have some answers. Fingers crossed.

I currently have completed an EASA Class 2 medical with a VCL - Valid by day only limitation.

After a chat with my AME I booked the Colour Vision Assessment in City University London. This assessment included;

1. Ishihara Colour Plates test (1-25 plates of 38-plate system)
2. American Optical Company (H.R.R) Plates (2nd Edition)
3. CAD (Colour Assessment & Diagnosis) test
4. Farnsworth D15 test
5. City University test, 2nd Edition
6. Nagel anomaloscope

The only test I was really interested in was the CAD test because I had already failed the Ishihara test during my medical which I had a fair idea was going to happen as I failed them before for jobs etc. After completing the CAD test I was given my score and unfortunately I was outside the threshold of 6 and I scored 13.5.

Basically that rules me out for an unrestricted EASA Class 1 medical cert.

My question is what are the colour vision testing methods used by FAA and is there any practical test such as the light gun signals etc.

Any extra information would be perfect also.

Cheers:ok:

Edit: This thread was already posted in The Pacific General Aviation forum. I am trying to gather information to help me decide on my next move be it US or OZ/NZ.

The FAA Guide for Aviation Medical Examiners lists the acceptable color vision exam techniques -

Pseudoisochromatic plates Test book should be held 30" from applicant
Plates should be illuminated by at least 20� candles, preferably by a Macbeth Easel Lamp or a Verilux True Color Light
Only three seconds are allowed for the applicant to interpret and respond to a given plate
American Optical Company [AOC]
AOC-HRR
Richmond-HRR
Dvorine
Ishihara
Richmond 15-plates

Acceptable Substitutes:

1. Farnsworth Lantern;
2. OPTEC 900 Color Vision Test;
3. Keystone Orthoscope;
4. Keystone Telebinocular;
5. OPTEC 2000 Vision Tester (Model Nos. 2000 PM, 2000 PAME, and 2000 PI) - tester MUST contain the 2000-010 FAR color perception PIP plate to be approved;
6. OPTEC 2500;
7. Titmus Vision Tester;
8. Titmus i400