dmbaer
Max Output Level: -49.5 dBFS
- Total Posts : 2585
- Joined: 2008/08/04 20:10:22
- Location: Concord CA
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/22 16:30:46
(permalink)
I wear bifocals (not progressives, though). I have a pair for regular use (driving, watching TV, etc.). But I have a different pair of bifocals for when using my non-DAW computer and a different pair for using my DAW computer which has a larger screen further away than my non-DAW screen. Fortunately, my older non-DAW glasses became right for my DAW as my eyesight slightly deteriorated. I can't imagine not having computer-specific glasses - the requirements are very different from those when the upper part of the lens is for the longer distances of everyday non-computer activities.
Next time you see your optometrist, go in with measurements of how far your computer screen is - it is probably a bit further than the distance for reading a book. You might be very well served with a computer-specific pair. I'm perfectly happy with bifocals and don't feel any need for progressive lenses for my computer glasses, which probably saves a significant chunk of change.
|
craigb
Max Output Level: 0 dBFS
- Total Posts : 41704
- Joined: 2009/01/28 23:13:04
- Location: The Pacific Northwestshire
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/22 16:33:50
(permalink)
michaelhanson
Next, I have to deal with some hearing loss. 
There's some natural remedies there as well. I used some tools from the following website to help with my tinnitus many years ago: http://www.samonas.com/
Time for all of you to head over to Beyond My DAW!
|
soens
Max Output Level: -23.5 dBFS
- Total Posts : 5154
- Joined: 2005/09/16 03:19:55
- Location: Location: Location
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/23 02:02:18
(permalink)
I tried progressives but couldn't handle them. Went with lined bifocals. Progressives require the eyes to retrain the brain to focus thru 3 different focal lengths. Bifocals are straight forward with no retraining. But they're getting harder to find as eye shops discontinue making them. For computer use I have a pair of straight (1 power) lenses just for that.
post edited by soens - 2016/07/23 02:42:35
|
DrLumen
Max Output Level: -78 dBFS
- Total Posts : 621
- Joined: 2005/07/05 20:11:34
- Location: North Texas
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/23 02:06:09
(permalink)
I started with progressives about 10+ years ago and didn't really have any issues at that time. The last 'upgrade' that I got was a complete nightmare though. I too kept thinking I was in a fishbowl as the whole world was warping around me. I took them back and they remeasured everything and the replacement pair was much better but they still didn't seem right. I went back to the ophthalmologist to get the new glasses checked and eyes re-examined but all was supposedly ok. I just had to get accustomed to them. They said part of it was with large diameter lenses each progression area is much larger so your peripheral vision is affected more.
I can't help but wonder if there is some kind of new grinding or cnc or cutting tech they are using that is somehow causing that effect to be emphasized. My upgrade was just a small uptick in strength but a huge difference in warping.
-When the going gets weird, the weird turn pro.
Sonar Platinum / Intel i7-4790K / AsRock Z97 / 32GB RAM / Nvidia GTX 1060 6GB / Behringer FCA610 / M-Audio Sport 2x4 / Win7 x64 Pro / WDC Black HDD's / EVO 850 SSD's / Alesis Q88 / Boss DS-330 / Korg nanoKontrol / Novation Launch Control / 14.5" Lava Lamp
|
soens
Max Output Level: -23.5 dBFS
- Total Posts : 5154
- Joined: 2005/09/16 03:19:55
- Location: Location: Location
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/23 02:19:22
(permalink)
The cool thing with progressives, though, is you can name your own price.... 
|
craigb
Max Output Level: 0 dBFS
- Total Posts : 41704
- Joined: 2009/01/28 23:13:04
- Location: The Pacific Northwestshire
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/23 02:47:48
(permalink)
soens
The cool thing with progressives, though, is you can name your own price....
I tried, but they said no, so I no longer have them as of last Monday!
Time for all of you to head over to Beyond My DAW!
|
Leadfoot
Max Output Level: -47 dBFS
- Total Posts : 2817
- Joined: 2011/04/26 11:08:38
- Location: Indiana
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/23 07:31:26
(permalink)
☄ Helpfulby DrLumen 2016/07/25 04:57:26
DrLumen
I started with progressives about 10+ years ago and didn't really have any issues at that time. The last 'upgrade' that I got was a complete nightmare though. I too kept thinking I was in a fishbowl as the whole world was warping around me. I took them back and they remeasured everything and the replacement pair was much better but they still didn't seem right. I went back to the ophthalmologist to get the new glasses checked and eyes re-examined but all was supposedly ok. I just had to get accustomed to them. They said part of it was with large diameter lenses each progression area is much larger so your peripheral vision is affected more.
I can't help but wonder if there is some kind of new grinding or cnc or cutting tech they are using that is somehow causing that effect to be emphasized. My upgrade was just a small uptick in strength but a huge difference in warping.
A couple things that can cause the effect you're describing: If you switched materials. Say your old lenses were CR-39(plastic), and you switched to polycarbonate or hi-index. Another thing that will cause the issue is when they change base curves, which is the front curve of the lens. These two things will cause your problem. I would suggest taking your old and new glasses back in and having them compare materials and measure the base curves of both. I would bet that there's a difference.
|
DrLumen
Max Output Level: -78 dBFS
- Total Posts : 621
- Joined: 2005/07/05 20:11:34
- Location: North Texas
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/25 04:38:00
(permalink)
Leadfoot
A couple things that can cause the effect you're describing: If you switched materials. Say your old lenses were CR-39(plastic), and you switched to polycarbonate or hi-index. Another thing that will cause the issue is when they change base curves, which is the front curve of the lens. These two things will cause your problem. I would suggest taking your old and new glasses back in and having them compare materials and measure the base curves of both. I would bet that there's a difference.
It's been about a year now but the hi-index sounds familiar. I always get the highest density material so a material change was very likely. Each time I go there is some newfangled plastic. I'll also keep that base curve info in mind as well. Thanks for tips.
-When the going gets weird, the weird turn pro.
Sonar Platinum / Intel i7-4790K / AsRock Z97 / 32GB RAM / Nvidia GTX 1060 6GB / Behringer FCA610 / M-Audio Sport 2x4 / Win7 x64 Pro / WDC Black HDD's / EVO 850 SSD's / Alesis Q88 / Boss DS-330 / Korg nanoKontrol / Novation Launch Control / 14.5" Lava Lamp
|
bitflipper
01100010 01101001 01110100 01100110 01101100 01101
- Total Posts : 26036
- Joined: 2006/09/17 11:23:23
- Location: Everett, WA USA
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/25 09:48:37
(permalink)
Leadfoot, so glad to have you onboard for this discussion. Thanks for lending your expertise.
It's day 4 wearing these progressive lenses constantly. It's getting easier, less disorienting. But it's also the 4th consecutive day of a mild headache. At this point, if I'd known last week what I know now, I'd have skipped the progressives and just bought two pair of glasses.
 All else is in doubt, so this is the truth I cling to. My Stuff
|
Leadfoot
Max Output Level: -47 dBFS
- Total Posts : 2817
- Joined: 2011/04/26 11:08:38
- Location: Indiana
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/25 11:27:33
(permalink)
I feel your pain... Like I said earlier, it took me a month or so to get used to mine. Lots of eye strain headaches for me too at first. All I can say is that it will continue to get easier, assuming that your Rx is correct, and that your segment height and pupillary distance were measured correctly.
|
kitekrazy1
Max Output Level: -40 dBFS
- Total Posts : 3524
- Joined: 2014/08/02 17:52:51
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/29 18:58:25
(permalink)
bitflipper
Any keyboard players here wearing progressive lenses? Is it something I can get used to over time?
It's only been a couple hours since I picked up these new glasses, and I feel seasick. My keyboard looks like it's warped and has waves in it when I move my head. Played a video game on my tablet and everything was warped, rectangles looking like parallelograms and circles like ovals. I've got that nauseous feeling you get from reading in the car.
Should I just be patient, or should I get another pair of glasses before my eyes go all googley?
I worked in the optical business for 15 years. I've made them and fitted them. Did you wear any multifocal lenses before? The lens is funnel shaped. You have to turn your head left and right, move eyes up and down for distance. The frame could also be part of the problem. So my frame designs are so small vertically to make use of these lenses. If it you are not use to them by 2 years they are probably not for you. I have a pair and don't use them a lot. There is nothing wrong with them it's that I don't need any distance correction. Most of the time at home I use readers. After 50 years of existence was the first time I needed any glasses and basically for reading. So wearing glasses isn't I usually do. Progressive take time to know how to use them.
Sonar Platinum, W7 Pro 32GB Ram, Intel i7 4790, AsRock Z97 Pro 4, NVidia 750ti, AP2496 Sonar Platinum, W7 Pro, 16GB Ram, AMD FX 6300, Gigabyte GA 970 -UD3 P, nVidia 9800GT, Guitar Port, Terratec EWX 2496
|
kitekrazy1
Max Output Level: -40 dBFS
- Total Posts : 3524
- Joined: 2014/08/02 17:52:51
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/29 19:11:44
(permalink)
DrLumen
Leadfoot
A couple things that can cause the effect you're describing: If you switched materials. Say your old lenses were CR-39(plastic), and you switched to polycarbonate or hi-index. Another thing that will cause the issue is when they change base curves, which is the front curve of the lens. These two things will cause your problem. I would suggest taking your old and new glasses back in and having them compare materials and measure the base curves of both. I would bet that there's a difference.
It's been about a year now but the hi-index sounds familiar. I always get the highest density material so a material change was very likely. Each time I go there is some newfangled plastic. I'll also keep that base curve info in mind as well. Thanks for tips.
The curve has to do with your prescription. Some are borderline where there are two options. Most lenses are polycarbonite where as Leadfoot mentioned traditional plastic is CR-39. Poly lenses can be ground much thinner. How they are edged down and put into a frame can make a difference. Also be far or near sighted has a lot to do with it.
Sonar Platinum, W7 Pro 32GB Ram, Intel i7 4790, AsRock Z97 Pro 4, NVidia 750ti, AP2496 Sonar Platinum, W7 Pro, 16GB Ram, AMD FX 6300, Gigabyte GA 970 -UD3 P, nVidia 9800GT, Guitar Port, Terratec EWX 2496
|
Leadfoot
Max Output Level: -47 dBFS
- Total Posts : 2817
- Joined: 2011/04/26 11:08:38
- Location: Indiana
- Status: offline
Re: New Glasses - They're Making Me Carsick
2016/07/29 19:29:44
(permalink)
kitekrazy1
The curve has to do with your prescription. Some are borderline where there are two options. Most lenses are polycarbonite where as Lead plastic is CR-39. Poly lenses can be ground much thinner. How they are edged down and put into a frame can make a difference. Also be far or near sighted has a lot to do with it.
The back curve is where your prescription is ground. The front curve is what I was referring to. Let's say someone who is a relatively high minus goes from a 2 base to a 4 base, or vice versa, there will be a perceptible difference, even if the Rx is exactly the same. The light is being bent differently because not only is the front curve different, the rear curve will be different too, to compensate for the difference in the front.
|