it must be the time of year.following on from the high prism thread got an order today for -35.00 -2.00 47mm dia 25 bowl lentic. that tested the generator.
so what is the worst prescription you have been asked to make.
so what is the worst prescription you have been asked to make.
http://www.optispares.btinternet.co.uk
jack
It is by universal misunderstanding that all agree. For if, by ill luck, people understood each other, they would never agree.
Originally Posted by optispares
so what is the worst prescription you have been asked to make.
Wow, microscopes for eyes. The highest I have ever had to deal with was a -19.00 -4.00 Rx The patient also had nystagmus. Biconcave lens yada yada yada
Opticiansfriend.com guy.
I once had a lady with -22.00 (can't recall the cylinder power) who wore glasses over CLs.
Any pictures?
so what is the worst prescription you have been asked to make.
will take a pic when it comes back from the ar coater next week.
http://www.optispares.btinternet.co.uk
jack
It is by universal misunderstanding that all agree. For if, by ill luck, people understood each other, they would never agree.
Had a -16.00 -17.00
Not a -17.00 cyl!!!! Is that even possible? :D
It's possible. However, don't try this at home, leave it to the professionals in thier white coats.
I'm just a lowly Apprentice Optician. *bowing low to the professionals in the white coats*
We had a -28 or there about. It was for a contact lens patient that wanted an emergency pair of glasses. She was unable to wear them. Her contacts were in the low -30's and she saw 20/40 corrected with them.
I had a man walk into my shop many years ago with a pair of myodisk glasses that were in very bad condition.He did not get them from us. He wanted them adjusted but I barely did anything to them, I was so scared they would break. I did look at the prescription and even at the highest setting(-20) it was still not in focus. I estimate it was a -22 or -23.
No way dude!
I'm like 'whatever'!
Ill kick your *** to the kerb if you reckon you can make that lens.
some pics just for rick
rsandrQuote:
Originally Posted by optispares
will take a pic when it comes back from the ar coater next week.
No way dude!
I'm like 'whatever'!
Ill kick your *** to the kerb if you reckon you can make that lens.
http://www.optispares.btinternet.co.uk
jack
It is by universal misunderstanding that all agree. For if, by ill luck, people understood each other, they would never agree.
Excellent, Jack
damm - i might just drive to leeds and buy jack a beer
im curious what brand of lenses you used for those- what're the factory thicknesses/curves and the such.
Three cheers for a job well done!
My highest= -23.50
WIsh you were close by, I would buy and hoist a drink in your honor.
Fezz
:cheers:
I remember attending a seminar by Norvilles several years ago. One of the questions asked at the time was "What is the highest minus lens you have dispensed". Personally I have dispensed a -33.00 as a bonded lenticular. In the audience the highest quoted was -42.00............. Norvilles topped it by a large margin, they had had an order for -96.00, YES you read it correctly, -96.00. To make the lenses thay had to cement 2 lenses back to back and each had an aperture of approx 12mm. A year later they had another order for the same client for -104.00, they physically couldn't make it.
Consensus of opinion was a guide dog or white stick would have been a better bet.
Lewy
You'll never get away with just buying him one.
In fact I think he'd take offence.
:cheers:
rolling arround on the floor Pi$$ing myself laughing. Sounds like a B&B job then
the blanks are scopus extra thick plano 16 mm thick .
and are worked both sides
1st side tooling - 5.00 -7.00
2nd side - 30.00 with a plus 16.00 margin to a 25 mm aperture.
get the most from an xrt gen. only don't tell coburn .they think it's out of the range:D :bbg:
http://www.optispares.btinternet.co.uk
jack
It is by universal misunderstanding that all agree. For if, by ill luck, people understood each other, they would never agree.
:cheers: i dont care who buys the beer i'll drink it:cheers:
http://www.optispares.btinternet.co.uk
jack
It is by universal misunderstanding that all agree. For if, by ill luck, people understood each other, they would never agree.
cool- sounds like it was fun ;)
What's the British Standards (or European) tolerance on that?
**** know's!, does it really matter at that power? I am sure ±0.50Ds will make a huge difference in VA
Lewy
well put it this way - a mm movement on the nose would give about a 10 D swing in power - now thats a pair of progressives and a half
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