2close

Here are the links to the CAA Papers:

http://www.caa.co.uk/application.asp...detail&id=2407

http://www.caa.co.uk/application.asp...detail&id=2408

As I said above, I suggest you read Paper 2 first as this centres on the QinetiQ research, which is quite encouraging.

Then read Paper 1.

The one line I really like (and I am paraphrasing very loosely) "we know that there are several redundancy systems that permit identification of systems other than by colour, e.g, audio, flashing lights, but we are going to ignore all of them because we are only interested in colours".

What absolute rubbish. The whole idea of such redundancy is to enable persons to identify warnings, etc. by various methods. To only consider colour as a criteria is ridiculous and my interpretation of the QinetiQ study is that, so far as the cockpit environment is concerned, colour seems to be the least important of the stimuli. There are occasions outside the cockpit where correct colour identification would be more important but even these hardly seem to be critical to flight safety.

In any case, as I've already said, make up your own minds.

Cheers,

2close

JediDude

In the UK you are only tested for colour vision at your initial exam. Medical renewals do not have a colour blindness test. Not so sure about other countries.

ACIDO

How are myopia and astigmatism calculated?

Are they calculated together or separately?

For example:

the limits for CAA/JAR is -5 for myopia and -2 for astigmatism:
if an eye is -5 of myopia and -1 of astigmatism, is that eye is considered as -6 diopters (and then out of the limits), or is it inside the limits because the two components separately can reach the requirements?

Thanx

GoOd bye

ACIDO

Cosmo

I believe that they are calculated together. So if both components are minus (-) then they are added to get the total refractive error.

From the JAA website (i.e the generic Jar-FCL 3, your country might have modifications):

JAR–FCL 3.220 Visual requirements
(b) Refractive errors. Refractive error is defined as the deviation from emmetropia measured in dioptres in the most ametropic meridian.


Cosmo

wannabepilot1531

I know that FAA's vision requirements allow for any vision aslong as its correctable to 20/20. Is this the same for a Transport Canada Cat. 1 aslwell?? thanks

JUZ777

I have read alot ( read all )of the CVD threads and am pleased to here that many of you are persisting and winning this evil ( read descrimitive ) battle.... I am a CVD (CP3) CPL holder in OZ with full class 1 and have an incredible Italian fiancee (read my ability to gain a working visa.. Yes I have had it confirmed). I am about to start my JAA ATPL study but live with fear that i may not be able to pass the CAA class 1 medical due to being colour deficient.....
As I understand the testing may be changing in the near future but i need to sort out this medical ASAP ie..end of NOV... I have read that some of you have had better luck in gaining your class 1 in other EU states and having it validated rather than just doing it in the UK.. I'm not looking for a free pass rather than trying to give my self the best chance of getting through. Of thoes of you that have had better luck in other EU states can any one please help me out with some contact details for a good AME. I will be arriving in London on the 28th of NOV and would expect to have had to have a booking made well in advance....
Any and all help very much appreciated
CHEERS..... JUZ777

WexCan

Hi All,

Some of you might remember my denial by the IAA due to esotropia. Just wondering if the CAA/IAA might pass a person who has had corrective surgery to bring the esotropia within the required limits? I have heard of succesful corrective surgeries that have brought the esotropia within the limits and improved the person's binocular FOV - I have had corrective surgery as a child but these have been only partly succesful due to growth etc. Does anyone have any experience or knowledge in this area?

Thanks!

Wex

DuffyDuck

Could you please tell me, how much your esotrpia is?
I "suffer" the same and get mine checked within the next two weeks.
The funny thing is, that I was tested for stereovision 2 weeks ago and were able to recognice three out of four pictures at the lang stereo test chart.
I want to discuss my eyes with the eyespecialist in Gatwick to obtain the madical finally.
Regards, DD.

WexCan

I don't have the letter to hand, but I have an inward and slight upward turn. You're right to get it checked first, I wasn't that smart. My main concern is whether or not corrective surgery will restore an acceptable binocular field of vision.

Bring the eye guidelines with you when you get checked out, and ask your specialist if they feel there are any "significant defects of your binocular vision".

DuffyDuck

thx for reply.
The thing is, that the jar´s don´t tell anything about the manifest strabism, only for the latent. Thats because it is very unlikely to suffer doublevision when you have a manifest strabism.
So i don´t understand why they can deny your medical just because of your esotropia.

WexCan

I couldn't understand either but JAR-FCL 3 does state that a person with "significant defects of binocular vision" cannot be certified, and an esotropia will affect binocular vision, and in my case stereopsis etc etc. While both eyes are healthy and my near vision and distance vision are fine (albeit with some correction which is within limits), the two eyes don't work together so there's a problem with fusing the image from the two eyes so I see the world in 2D (by the textbook, in reality apparently my brain has developed other ways to perceive depth but I still can't do those optical illusion things etc).

I'm hoping that if I have corrective surgery again to align the eyes and it's succesful, the fusion will develop and I'll have normal stereo-vision.

DuffyDuck

I can tell you, you will enver have normal stereovision. That is impossible. Steresovision isn´t a "eye- thing" but a "brain- thing". Your brain takes the images from each of your eyes an puts it together. If it doesn´t fit properly, your brain disables one image. Many people then get a normal functioning eye and a very weak one. in you case, you had an operation (as i had) when you were a child. cause of that, your brain could supress a part wthout supressing the whole eye. usually your brain developes stereovision in the first 2 or 3 years in your life. now its to late. operating now could even worsn your binocular vision.
I was lucky that i coul develop a bit of stereovision.
Ask the guys in gatwick what you can do about your eyes.

WexCan

I have heard reports of stereovision developing in adults, particularly with surgery coupled with orthoptics and vision therapy.

whitelabel

In England you need to go to Gatwick but I advice you to go to Holland.
Why? Because alomost all tests are available there. We got 3 different AMC's


http://www.aeromed.nl/ (Holmes Wright) Schiphol

http://www.aviationmedical.com/ (Anomaloscope) Hoofddorp

http://www.alc-srv.com/ (Copy of the Beyne test, but different) Utrecht


I advice you to go to Hoofddorp First. 2nd Utrecht. 3rd Schiphol.

Good luck

whitelabel

Sorry A little mistake.
http://www.alc-srv.com/ (Hoofddorp
aviation medical center (Utrecht)
GL

not the office jnr

sam109
I am in exactly the same boat as you. I have just come back from the opticians and found out I’m the same - am 2.5 dioptres, and from reading the CAA website, I thought that was me ruled out of getting a Class 1 – apart from the line that says “applicants who fail to meet the initial visual examination standards, but who reach the renewal/revalidation standards should contact…”, which is clearly how you have got yours??

Mine has also been the same for the past 6 years (it was caused by gouging in rugby), and I meet all of the other eye standards, but haven’t been for the full initial Class 1 experience yet.

I am going to give the CAA a call this afternoon, but would love to know more about your situation, as if you have been given a Class 1, then there is no reason why I shouldn’t either!

As for your question, just go for it mate, if your prescription hasn’t changed in 3 years (and I’m assuming you are young-ish) then why the hell not? Go and live the dream, and if your sight gets worse, at least you wont regret not going for it!

Jnr.

JUZ777

Thanks whitelabel, I appreciate your advice.

Chris-1234

Hi there.

Ive been reading this thread as i am soon to be moving to New Zraland and am going to be looking to hopfully geting my CPL but as im colour blind as ive been reading it may not be possible. Ive been playing around on the net and have come across a company in the USA who say that with corrective contact lenses or with glasses they can cure colour blindness, i was wondering wheather there are any restrictions on using these to gain a medical certificate on the understanding that these glasses/ contact lenses were worn when flying?



Chris.

2close

Hi Piotrek,

That does not sound like any JAA alternative test I have heard of and think it may be a national test (Poland only) which would only apply to Class 2. It may be accepted by the Polish aviation authority for Class 1 but you would have to ask them.

I doubt the UK CAA would accept it if it is not one of the JAA approved types of test but so what, get your CPL in Poland. It is fully recognised as a JAA member state and the licence would be valid everywhere.

I would be very interested to hear more details of the test.

All the best,

2close

Rogal

Something like that:

My task was identify colours in corners(lights).

In next year I'm going to go on initial 1 class and I'm little disturbed...

Regards