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VISION THREAD (other than colour vision) 2

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VISION THREAD (other than colour vision) 2

Old 23rd Jul 2019, 16:23
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Hello everyone,

I've received my class 1 medical in May. I should start my integrated training in 30 days. Last month however I noticed I've been blessed with tinnitus out of the blue. 2 weeks after, I went to an airshow and while looking at the strip, I noticed the following thing in my central vision:


Bright sun and lots of heat sound like the trigger. I've experienced the same thing a month later while visiting the same region and under the same conditions. I am a bit baffled on what to do here. I've noticed that I also have the blue field entoptic phenomenon plus a few floaters.
My eyes, according to the two class 1 exams I've taken are fine, but this is a bad state to be in since flying consists mainly of blue sky and bright light all day every day, thus I am unsure if I should drop the idea, since this can be a possible safety issue. Any ideas on how to move forward would be greatly appreciated as I have 20 days before I have to sign my contract.

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Old 24th Jul 2019, 13:59
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Dr Google has some information on Visual Snow. It seems to be a neuro ophthalmic disorder and like tinnitus you have to learn how to live with it.
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Old 24th Jul 2019, 16:21
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Living with it is fine, but what about working? I can go to the AME and say - I think I have Visual Snow - any idea on what happens next?
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Old 25th Jul 2019, 14:48
  #404 (permalink)  
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For rare conditions, it totally depends on your national CAA - could be anything between allowable and permanent denial.

In the US, pilot unions and associations have expertise to help members work through aeromedical issues. Possibly you could take out a membership in AOPA and then contact their aeromedical people.
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Old 30th Jul 2019, 14:24
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Aspiring Pilot - Seeking Class 1 & 2 Medical advise before commencing training.

Aspiring Pilot - Seeking Class 1 & 2 Medical advise before commencing training.

Hi, I hope everyone is doing fantastic and awesome.

So, I am currently 22 years of age and I am an undergraduate student. I was hoping to embark on my training throughout the modular route over the next year or so.

However before doing so, I was hoping to get an input from anyone out there who may be able to offer any advise in regards to the following concern I am having. This concern of mine has simply put my pursuit into the aviation industry to a halt for almost a year now.

The concern I am having is with my my vision, as the vision in both of my eyes does not qualify for 20/20 vision. My right eye is 20/20 but not quite 20/15. My left eye is noted to be 20/40. This cannot be corrected. I have been to the local SpecSavers store here in UK for an eye test, and have been advised that my vision condition is called Amblyopia (Lazy Eye) and cannot be corrected. However I am still able to see everything clearly at almost most reasonable distances. I have been to a specialist here in the UK for a consultation and they have confirmed that my vision in my left eye cannot be corrected with any form of aid. However they said there may be a chance with vision therapy NOT surgery, but there is small margin of success. However this is significantly costly and wanted to see if anyone else has ever had to face anything like this.

I have been advised to just go and take the class 1 Medical exam and see what happens but I thought I'd get ahead of any surprises which may come my way.

I will appreciate any advise, experiences or inputs shared.

Thank you for viewing my post, I appreciate it very much.

## Also Please forgive me if this post was slightly extensive.
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Old 8th Aug 2019, 19:48
  #406 (permalink)  
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I was in a kind of similar issue as yours when inwent for my UK CAA medical, the thing was that they fount that i had a latent squint in my eye wich i wasn't aware of. They sent me to an opthalmologist who failed me because my eye deviation was too large and he tought that when i will be 50 years old there will be a 20% chance that i will start to develop symptoms of Double Vision (Wich is the risk with the squint) but at the moment i nevere experienced double vision in my life and according to UK CAA regulations if i didn't had double vision i should have passed my class 1 even if i was over the limits as long as you don't see double tht should not be a problem.

I appealed straight after the wrong decision of the Opthalmologist and i got my medical 6 month later.

So you will be fine too don't lose hope as far as i know new zeland class 1 medical standards are pretty much the same to the uk caa in the squint section. (i might be wrong aswell)
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Old 3rd Oct 2019, 05:14
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Austrocontrol Class 1

Hi Everyone

I am looking to transfer my medical from a UK CAA class one to an Austrian class 1 under austro control, however before doing so I want to be sure that I meet the eye sight requirements. Does anyone know where I can find the austrocontrol Austrian class one eyesight requirements? or will they be the same as that for the UK CAA

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Old 4th Oct 2019, 12:47
  #408 (permalink)  
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I am not allowed to post URLs, so go on Austrocontrol website in English language, in the pilot section there is an Aeromedical section with guidelines. They all refer to Part-MED.
If you hold already a Class 1 there's nothing to worry about. It's just paperwork.
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Old 5th Nov 2019, 00:22
  #409 (permalink)  
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Eye Surgery for Presbyopia

Hello All,

Am getting to that age where I need to wear glasses for my night flying.

This is complicated further by the fact that my job requires me use night vision goggles.

I have heard that presbyopia doesn't really have a long term laser surgery solution, but I love to get just another 5 years of flying without faffing around with glasses.

I'd really appreciate any advice or to hear of anyone's experiences.

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Old 5th Nov 2019, 05:20
  #410 (permalink)  
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There is an argument that laser eye surgery increases depth of field in some way. The idea is that you can have one eye adjusted to be slightly shortsighted so you can read without glasses but also have useful distance vision of 20/40 or so, then have the other eye corrected (or left alone) so that it has good distance vision.

I was speaking to a BA pilot in her late 50s who has had this done and has a class one medical with no need for eye correction. Expensive though, about £6k altogether.
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Old 7th Nov 2019, 17:11
  #411 (permalink)  
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Class 1 eye test


Wondered if anyone could help me, I wish to undertake my Class 1 soon and my concern is with the eye testing, my corrected prescription is well in the requirements, however my problem is the distance vision or how they conduct this.

For example testing with my local Specsavers my corrected vision is

6/6 in the right eye
6/7.5 in the left
6/6 both together

but when at home if I conduct the test using a snellen chart at 6m away I struggle with my left eye to achieve the minium standard of 6/9.

So my question is how do they test for this at the Class 1 conduct the test is it the same as an optician in a chair for the illuminated screen?

many thanks
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Old 10th Nov 2019, 11:00
  #412 (permalink)  
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CLASS 1 Eye requirements and limitations

Hi fellow aviators

Initially i got my class 1 medical denied because i unfortunately suffer from amblyopia (One eye dominant, one eye weak). My strong eye is better than 20/20 while my weak eye is around 20/40-20/50. After months of eye training (i know it shouldnít be possible), and with the right lenses i saw 20/20 on my weak eye and got granted a class 1 with RXO that restricts me to see an Eye Examiner every two years.

Iím now a pilot traniee, and concerned that i might be refused on the upcoming renewal, if i somehow have a bad eye day. The Danish authorities are very bad at giving a concrete answer, so iím hoping that i can find some help here. Do any of you know the speific requirements for visual acuity? I keep reading diffrent things, where some website states 30/20 in each eye, and 20/20 with both eyes (EASA), and other sites stating for each eye seperately itís 20/20 (somehow also EASA). If 30/20 is correct, then all my concerns will dissappear. If itís 20/20 in each eye, then i might be looking at an OML restriction.
Sorry for the long read
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Old 18th Jan 2020, 07:21
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Confusion about CAA GM for eyesight

Hi all,

In the next few months I'll be applying for my initial Class One medical. However, one thing that has always concerned me is my eyes. I have myopia and very slight astigmatism: -7.5 and -7.25 myopia, with -0.25 astigmatism in both.

The CAA GM states this in the 'Accetable Means of Compliance' column:
Applicants with the following conditions may be assessed as fit subject to satisfactory ophthalmic evaluation and provided that optimal correction has been considered and no significant pathology is demonstrated:
(ii) myopia not exceeding -6.0 dioptres;
(iii) astigmatism not exceeding 2.0 dioptres;

Therefore, by this, I should fail my medical as my myopia is outside the limits. However, in the 'Guidance Material' column, it states:
Applicants for a class 1 medical certificate with any of the following medical conditions shall be referred to the medical assessor of the licensing authority and may be assessed as fit subject to a satisfactory ophthalmological evaluation:
(i) Myopia exceeding -6.0 dioptres;
(ii) astigmatism exceeding 2.0 dioptres;
Assessment should be conducted by, or under the supervision of, an ophthalmologist and ensure that there is no underlying pathology or other ocular abnormalities. Monocular visual acuities shall be 6/6 or better. Assessment shall include:
1) Dilated, binocular, indirect ophthalmoscopy in cases of myopia exceeding –6.00 dioptres
2) Corneal topography at initial assessment (and at renewal where there is significant change in refraction) in cases of astigmatism exceeding 2.00 dioptres.

The local optician said the myopia should stop when I get to around 22 (I'm 18), and the astigmatism shouldn't get passed the -2.0 limit.

My question is this: has anyone successfully been certified an initial Class One with an exceedance in myopia or astigmatism? I know for myself there is no underlying issue and my eyes are healthy. I'm just concerned given that the CAA GM seems to contradict itself (probably me being paranoid...). Should I be worried about my medical? From what I can tell, I'll just be referred to someone higher up ('the medical assessor of the licensing authority'?), who can then approve it?

There is always the alternative of getting LASIK to bring my eyes within the limits.
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Old 10th Feb 2020, 00:24
  #414 (permalink)  
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Class 1 medical with monocular exception

Howdy all, got a bit of a weird question here so I guess Iíll just lay it out. Iím 31 years old, ever since I was a teenager Iíve been wanting to become a commercial pilot how ever my eye sight is not great, essentially I have one eye that is better than 20/20 but my other eye is far worse, and unable to be corrected with glasses to 20/20. Initially when I was 18 I attempted to get a medical but my regular optometrist said quite clearly to me that I would never pass a medical. Silly me took them at their word and didnít get a second opinion, made piece with my life and found a different career. Obviously 10 years later Iím in a far better position financially and still have that itch to go flying. Iíve since seen yet another casa approved optometrist in the hopes of anything changing and they said basically the same thing, this time I had done some research and found that it was possible to pass a class 1 with an exception, when I asked about that they tried to push me away from aviation with something along the lines of well if an airline had someone with no restriction vs someone with a restriction who would they take. I guess my question is if anyone knows of has experienced something similar. The two problems I have is getting a pass on the medical but even then I donít want to invest a ton of money into cpl atp ect if airlines are going to see that and dismiss any application. Any guidance or stories of similar situations would be appreciated, Iíve always been flexible where I live so even employment out of Australia is a possibility for me. Thanks in advance.
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Old 10th Feb 2020, 02:04
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Depends on the individual case. It may depend on when you first developed the problem. There are monocular pilots out there with class 1 medicals, but I believe, (don’t quote me) that they have not had use of that eye from birth. That may have something to do with the development of the visual pathways from the lens all the way to the visual cortex.
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Old 10th Feb 2020, 02:07
  #416 (permalink)  
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What type of restriction/exemption are you talking about? Is it something that will unduly hamper your employment with an airline?

If it isnít then I donít see how an airline could deny you employment because of it.
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Old 10th Feb 2020, 02:09
  #417 (permalink)  
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Eyeballs in the sky...

Have a look at CASR 67.150, specifically section 1.31 in the table for Class 1 requirements (page 370). Essentially, it's 6/9 in each eye, but 6/6 with both eyes (plus some requirements for close-in). That'll give you an idea re your first question.
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Old 10th Feb 2020, 02:10
  #418 (permalink)  
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If youíve got the class 1 medical, a valid licence and pass the recruitment process, youíll get the job.

You will only have an issue if thereís a restriction on your medical such as copilot only, or day ops, VFR only etc.

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Old 10th Feb 2020, 05:17
  #419 (permalink)  
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Hey guys thanks for the replies, most of what you bought up was how I was thinking it was just a bit worrying to have 2 CASA optometrists tell me not to bother even trying to get the medical. I guess for a little more history, my eyes have been that way since birth. My bad eye is worse than 6/9 but with both eyes my vision is better than 6/6. Most likely I'm just going to go for it regardless of what the 3rd optometrist will say, and see what they come back with once it all gets sent away.
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Old 10th Feb 2020, 16:12
  #420 (permalink)  
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I remember hearing of an eye injury to my teacher's son. He lost vision in that eye, but eventually obtained a Class I medical and CPL in Canada in the 70s. The CAA tends to lag.
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