Trifocals with a difference
 

Hi All,

I’m researching glasses. My current multi focal lenses are great but I need a reader correction at the top of the lenses to view the overhead panel. Can anyone recommend an optometrist in Melbourne, Victoria that can handle this kind of request. So far the usual suspects, OPSM and Specsavers just can’t cope.

TIA!

Ought not to be too difficult.

Years ago, as John Colvin's legacy, we had one of the older left seat folk in the B767 with pentafocals - I can't bring myself to bifocals, how anyone can manage 5 segments is totally beyond me .....

Have you considered modifying your current lenses with stick on fresnel lenses? They work surprisingly well and are a low cost, easily removable, solution.

For those interested in John Colvin;

https://www.mja.com.au/journal/2006/...in-fracs-fraco

I found an independent Optometrist, (non Franchise, spec savers etc) that has been in the business a while and uses the old school manual machine. Have a look for an older Person with experience with pilots, maybe around the Essendon area?

I have “graduated” glasses. I took measurements of the focal distance/angles I needed. Ie: writing in the tech log/EFB (corrected), programming the Box (corrected), looking out the window (not corrected).

I needed to get the reading correction “raised” up a little because of the angle needed when writing/EFB. The overhead is a bit of a compromise, but if you turn the lights up a little it’ll help. (The big RED lights are pretty easy to see without glasses🤓🤓)

It takes a while to get used to them, but it is much better with than without.

I flew with a Capt that had 3 pairs of glasses as the “multi focal” thing didn’t work for him. 😩

I had such glasses for focusing on overhead panels made for me by Specsavers, but although they worked exactly as planned, I didn't like wearing them. It became easier to use bifocals and just lift my head higher to see the overhead panels.

I used Progressive lenses last 5 years before retirement. Worked really well.

Thanks very much Roj!

Thanks, but they [specsavers] flat out refused to acknowledge something like that was even possible when I spoke to them. Didn’t even want to entertain the possibility of producing a set! Which shop did you go to and did they have readers top AND bottom of the lense?

Thanks John, if you can drill down to a shop or supplier I’m all ears!

As long as ordering internationally doesn’t bother you, try https://bigatmo.com/. I have found these people to be exceptionally knowledgeable, helpful and prepared to go the extra mile to meet your needs. They’re definitely worth discussing your requirements with. They specialise in aviation glasses, with both company principals having a long and ongoing association with commercial aviation. Not only that, they’re bloody good people too!

I personally have 2 pairs of their multi-focal glasses (one pair sunglasses, one pair clear spectacles) both pairs are the same prescription. They are fantastic in the cockpit in all environments. The frames are comfortable and robust, well beyond what I experienced with other “premium” eye wear. I couldn’t imagine being without them now. The sunglass lenses particularly have been formulated specifically for aviation and are superb.

Prior to these glasses, I wore contact lenses for many years and tried all the usual suspects for sunnies… RayBan, Randolph, Serengeti etc. These Bigatmo lenses are at least the equal of any of those.

IMO it’s definitely worth the effort of dropping them a line, at least. They’ll give you rock-solid, experienced advice at a minimum.

Another point dealing with spectacle makers is their insistence on knowing best. Unless you REALLY insist on your measured distances to the work face for each inside segment, be prepared to take the glasses back for second or third or fourth go ...

I tried tri-focals once back in the 90's and the top bit was a separate part of the lens (not all one piece) and although it worked the join was a bother. Times have changed but I would not suggest anything but one piece lens these days.
The mention above about John Colvan and Martin Hogan brings me to another question. John was responsible for the "Apollo Anti-Glare" spectacles back in the 70's and 80's which were used in the RAAF and also sold in civy world. Martin X Hogan was at the top end of Collins St and did the fitting etc. I still have a pair of those glasses and have never found any better, especially the frames which had little clips to stop the lens from 'popping' out if hit. They were also advertised as safety glasses.. Does anyone out there still have/use a pair??

I used small bifocals. One for reading charts and the other for the instrument panel (the latter mainly for night).

For the overhead panel, I just pushed the glasses up higher on my nose. If I needed a long term view of the overhead panel, I just lowered my seat to the floor! :uhoh:

You’ll find something that works for you.

Be cautious also of buying the light-sensitive colour-change glasses. I bought one such (expensive) pair, to use in an S76, and found that the UV which activates the change, was removed by the windscreen, so they didn't darken at all. I had to be outside the aircraft in direct sunlight for them to darken, and as soon as I hopped into the cockpit, they cleared up again. Waste of money.

How about a pair of these?

https://cimg0.ibsrv.net/gimg/pprune....c1ffc79fd.jpeg

(That’s Dennis Taylor, 1985 world snooker champion.)

Hampton Optometrist can do them.
Ian Gutteridge
348 Hampton street
Hampton
Vic
9598 1220.

You'd be best going to a specialist rather than an chain optical shop. The big names tend to discount and aren't interested in anything beyond plain bread and butter work as their returns are limited and they just want quick and easy turnover.

When I was in Brisbane years ago, we had "Focus Optics" which was in the same building as the CASA approved eye examiner.

You could try calling some of the Designated Aviation Opthamologists on the CASA website who may be able to do the job themselves or point you in the right direction. At least they would know what an overhead panel is.

Lenses somewhat like this are used by snooker players and librarians. You probably need an independent optometrist; even then, a useful word to trigger thinking beyond the normal is "occupational"; I have a particular need for bifocals for working, and my excellent optometrist was having difficulty understanding what I was on about until she retrieved the phrase "occupational bifocals" and all was plain sailng.

I used to have a great old-school optometrist who looked after me well until he retired. Being way overdue for updated glass and with a medical looming I paid a few visits to some of the CBD shops but wasn't really impressed as they were more fashion focussed than meeting/understanding my specific technical needs. Then I had an idea, to find another good optometrist I popped into an eye surgery and asked for a recommendation. They recommended a shop in Oakleigh, Atherton Rd who listened to and understood my needs and were able to deliver three pairs of glasses to suit, and as a bonus I was able to reuse my existing frames. The glasses are great and I won't hesitate to go again next time.

I'd try Tony Gibson or Murray Smith at Mitcham Eyecare - both are CASA approved credentialed optometrists and have helped me in the past.

Dr John Colvin was associated with an Optician Martin Hogan in all his aviation spectacle development for NASA and the aviation community.
Martin Hogan seems to still be practicing. He has a website.
Hogies
Contact. Unit 16/ 125 Highbury Road, Burwood 3125, Victoria, Australia Tel:+61 3 9650 9163

After retiring, I had the cataract lens replacement surgery. Best thing ever! Truly life changing not having to carry a spare pair and constantly cleaning or losing the active pair. Now I have 6/6 vision without specs.

Weirdly, dear old CASA attaches a caveat to my Class 2 medical - no night flying and no IFR. After 3 years, it still makes no sense to me. I can see better without glasses now. Plus no more tangled up specs in the O2 mask when doing rapid decompression/emergency descent drills in the sim.

Were it not for that caveat by CASA, I’d strongly recommend getting the surgery done.

Hi Lucille

I have been looking at intraocular lenses too. You can now get varifocals and both the UK and New Zealand authorities are happy for an unrestricted class 1 with an acuity report. The operation is far less of an issue too now the lenses are foldable as they are effectively inserted through a needle as opposed to a fully open procedure. A colleague of mine went through this 2 years ago and was very pleased. As always choose your surgeon carefully, and have deep pockets

Thanks Triton!👍🏼

Thanks ACMS! Just the kind of thing I was looking for.👍🏼

I tried this thinking it would be the perfect solution.

Unfortunately, Transition lenses DON’T work in the A320 and only partially work in the car. For all the reasons above. Don’t waste the money, just get a pair of clear and a pair of sunglasses the same once you have them sorted. (I also found a “lighter” tint is better for the sunglasses as this helps with the areas not in sunlight)

Getting old sux😩🤓

I got the multifocal implants about 6 months ago and couldn't be happier. Before I couldn't read even the largest print without cheaters. Now I can see everything from up close to far away. Expensive, but you won't need to pay for eyeglasses again. You'll also never form cataracts on the artificial lenses. Also a bonus was my eye pressures were just below the glaucoma threshold at 22-24, after surgery normal at 12-14.

Translation lenses generally work okay in aircraft, it’s Polarised that give problems reading LCD displays and as they are constantly dark you will need a separate pair with clear lenses.

Very interesting. Do you have a class 1 medical with those lenses?

Glasses have always been the bain of old age and flying! By 45 I needed the chemist shop glasses to read the Jepps charts, by 55 I was stuffed and needed Tri-focals -( I no longer drive the big stuff thank Christ but the Tri's are still handy for driving& working on my private planes. Mine where from Specsavers and they called them industry glasses. Haven't been back for a few years so not sure if they still supply them?

I would also suggest stick-on lenses, but not the Fresnel ones. There are others that don't have the Fresnel's grooves, which make reading anything more difficult. I have bi-focals (one pair sunnies, one pair clear) and use the stick-on lenses in the lower part of the clear ones for reading charts at night. Works a treat.

Hi Deethy19

Try David West at Eyecare Plus
11 Lamb St Cranbourne. Vic 3977
P: 03 5996 3693

I have seen him twice over recent years for four pairs of progressive multifocal spectacles. He tailored them all to my requirements for flying. They were awesome each time. He really takes the time to check the distances and width of the centre field of each part of the lens to best meet your specific needs.

I am sure that he could help you.

Please tell us more about them, what are they exactly?

Bifocals have two lenses already, the lower portion being for reading. Why are you putting stick-ons on the lower portion to read? I thought you'd put them on the top to read the overhead panel.

Can anyone recommend a company in the USA that can manufacture these types of glasses? I need twice the correction for viewing the overhead panel as I do for seeing the main screens, and no correction for the center (distance) section.