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-   The Pacific: General Aviation & Questions (https://www.pprune.org/pacific-general-aviation-questions-91/)
-   -   Trifocals with a difference (https://www.pprune.org/pacific-general-aviation-questions/641549-trifocals-difference.html)

triton140 11th Jul 2021 10:41

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

rjtjrt 11th Jul 2021 11:45


Originally Posted by john_tullamarine (Post 11076712)
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 .....

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

lucille 11th Jul 2021 11:50

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.

homonculus 11th Jul 2021 17:34

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

Deethy19 11th Jul 2021 22:37


Originally Posted by triton140 (Post 11076878)
I'd try Tony Gibson or Murray Smith at Mitcham Eyecare - both are CASA approved credentialed optometrists and have helped me in the past.

Thanks Triton!👍🏼

Deethy19 11th Jul 2021 22:38


Originally Posted by ACMS (Post 11076808)
Hampton Optometrist can do them.
Ian Gutteridge
348 Hampton street
Hampton
Vic
9598 1220.

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

Roj approved 12th Jul 2021 00:02


Originally Posted by Ascend Charlie (Post 11076792)
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.

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😩🤓

Dorf 12th Jul 2021 00:50

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.

krismiler 12th Jul 2021 09:56

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.

Deethy19 13th Jul 2021 00:03


Originally Posted by Dorf (Post 11077176)
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.

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

machtuk 13th Jul 2021 02:16

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?

172driver 13th Jul 2021 19:17


Originally Posted by EXDAC (Post 11076717)
Have you considered modifying your current lenses with stick on fresnel lenses? They work surprisingly well and are a low cost, easily removable, solution.

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.

Indy66 14th Jul 2021 03:54

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.

ACMS 14th Jul 2021 09:30


Originally Posted by Dorf (Post 11077176)
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.


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

Capn Bloggs 14th Jul 2021 12:06


Originally Posted by 172 driver
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.

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.

OrvillesGhost 7th Jul 2022 23:26

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.


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