By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Jan 24th

optivisor

see better

All Topics | Latest Posts

Search for:  in Thread Title in  
Cornish Jack10/07/2020 12:23:48
1137 forum posts
163 photos

Some of us may recollect a (Panorama?) TV programme coverfing the 'rip-off' operations of Britain's spectacle industry before they became 'optometrists' It was a total racket!. The mark-ups on standard reading glasses were ridiculous and 'specials' were beyond belief. A specialist eye surgeon from Moorfields was asked where he bought his glasses - " Morocco (or similar) at £1.85" One pays one's money and makes one's choices. My only prescription glasses were produced after 3 attempts by an R.A.F. employed, Harley Street 'specialist', the final pair of 'half-eyes' being made up to a 'prescription', copied from my Hong Kong sourced similar, which cost £1.30. That was 35 years ago, so I suppose another visit might be worth considering.

Martin Kyte10/07/2020 13:13:02
avatar
1901 forum posts
34 photos
Posted by Cornish Jack on 10/07/2020 12:23:48:

Some of us may recollect a (Panorama?) TV programme coverfing the 'rip-off' operations of Britain's spectacle industry before they became 'optometrists' It was a total racket!. The mark-ups on standard reading glasses were ridiculous and 'specials' were beyond belief. A specialist eye surgeon from Moorfields was asked where he bought his glasses - " Morocco (or similar) at £1.85" One pays one's money and makes one's choices. My only prescription glasses were produced after 3 attempts by an R.A.F. employed, Harley Street 'specialist', the final pair of 'half-eyes' being made up to a 'prescription', copied from my Hong Kong sourced similar, which cost £1.30. That was 35 years ago, so I suppose another visit might be worth considering.

If you are a driver and need glasses for it you may well be driving illegally. I hope they are just for reading.

regards Martin

Edited By Martin Kyte on 10/07/2020 13:13:52

KWIL10/07/2020 16:49:36
3262 forum posts
63 photos

I have "trained" my optometrists to carry out my annual inspection and to supply the prescription.

Then I used to go to a separate supplier who made up the glasses for a far smaller fee and also used my existing frames without trying to sell me a new one. Unfortunately he has now retired but I have found a local source who does the same procedure for me. Interestingly they have a "machine" which measures the frame aperture with moving probe and then proceeds to mill the lens to fit. Even a lesser price with a will not be undercut offering.

Mike Poole10/07/2020 17:19:30
avatar
2614 forum posts
63 photos

I think lenses must be made from the frame as I broke my metal frame and got the lenses dropped into a new frame, one is just a tiny bit loose so I assume there is a tolerance on the frame but the lenses are custom made to the frame aperture.

Mike

john fletcher 110/07/2020 18:03:46
601 forum posts

I've actually seen the lens part of specs being made to fit. In the small grinding machine there was three grade of emery wheels A pattern was selected from a box of plastic patterns to match the frame selected. A pair of sucker, very similar to valve grinding sucker were attached either ide of the lens, the assembly was dropped onto two bearing and an infra red light carried out an alignment. test to locate the lens centre. A stylus followed the pattern as the small assembly was being rotated, the rough wheel remove the bulk of the glass. The operator move the assy to the next stage and finally the third wheel almost polished the edges. Done in about 5 minutes, £8 including frames, free tea if you have to wait. I have been unable to find an optician here in UK who will fit new lenses to my workshop frames. John

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Support Our Partners
Allendale Electronics
Eccentric July 5 2018
EngineDIY
ChesterUK
Warco
emcomachinetools
cowells
Eccentric Engineering
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest