Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Safety & Legal Issues



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 02-23-2011, 10:49 AM #1
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Eyesight question

Hey guys, I am not sure if this is even directly related to lasers but I'll give it a shot anyway.

Through past 6 months I noticed my eyesight is getting tad worse. I noticed that I could not read the blackboard from middle of (huge-ass) classroom anymore.
Anyhow, at first I was going to contribute that to having over my laptop and PC for 27 hours a day (sometimes 30 ).

But it occured to me that I've been playing much more with lasers, especially since those 445nm lasers came out and my latest 12x laser and stuff. I was just wondering it it's anyhow related.

More importantly:

The other day I was trying to see the blackboard and noticed that it's not simple "out of focus" image, as when your eyes adapt to half meter focus range with excessive computer usage.

It's more like distorted image preventing me from reading.

Out of some reason, I rubbed my eyes and opened them wide and wow, I was seeing crystal clear to blackboard and could read the smallest of numbers as exponents (it was math).
Through about half minute, things got to old settings.

I came to a conclusion that my eyes are producing too much of that liquid which covers your eye's lens. When I rub my eyes, I appear to squieze out the excess liquid (I can feel it on my fingers), and I see perfectly clear like I used to before. I always managed to fully complete those tests where there are smaller and smaller letters each row, always 100%.

I don't think I'd be able to do it again without rubbing my eyes now. I never had the problem before.

I am not even sure this has anything to do with lasers. Just asking if anybody is experiencing similar things around high powered violet and blue lasers (so we could rule that out/in).


__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 02-23-2011, 11:18 AM #2
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
anselm anselm is offline
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
Default Re: Eyesight question

I don't think this is laser related, but my medical expertise is nil.
Where I live, periodically you will see a van transformed into a simple optician's "lab" parked on town square.
It's not there all the time, but at least once every year, so since what you describe doesn't sound urgent...
They check people's eyesight, for free, and then tell you either "it's good" or "come to my office for more exams"
This is how I know about my very slight astigmatism.
It's not a very thorough check, but it's better than asking on internet forums and it's free.

Don't they have these free screenings in croatia?

And no, I've never experienced what you describe.

__________________
I'm away from home and lasers until late July!
Kryton Groove switch workaround
Get your warning label stickers 0.90$ or less, depending on qty
The INDEX to the LPF
Add to it, and spam it from your signature, too!
Beware! Scams a-plenty, don't be a sucker!
___________________________
ATTENTION
This forum is fullfilled mit special electronische equippment. Fingergrabbing and pressing the cnoeppkes from the lasers is
allowed for die experts only! So all the “lefthanders” stay away and do not disturben the brainstorming von here working
intelligencies. Otherwise you will be out thrown and kicked anderswhere! Also: please keep still and only watchen astaunished the blinkenlights.

Last edited by anselm; 02-23-2011 at 11:27 AM.
anselm is offline   Reply With Quote
Old 02-23-2011, 11:56 AM #3
Delorean Geek
Guest
 
Posts: n/a
Delorean Geek
Guest
 
Posts: n/a
Default Re: Eyesight question

I had that exact same problem(and I don't mess with laser pointers, never took an eye shot, etc).

It sounds exactly like a classic case of astigmatism....especially if you have been straining your eyes a lot lately. I would be seeing just fine than blink and everything was blurry, like a film over my eyes. If I blinked again or rubbed them it was gone...until the next blink. My advice is to take a break for a few days from heavy eye use like the laptop, reading, watching tv, anything that would cause eye strain. I know you must use your eyes some, just don't overdo it.

My job involves a lot of close up work and eye strain and I even catch myself squinting without realizing that I was doing it.

PS: I wear contacts, and my last visit to the doctor my doctor gave me a pair designed for astigmatism, which helped a lot.

Last edited by Delorean Geek; 02-23-2011 at 12:03 PM.
  Reply With Quote
Old 02-23-2011, 01:10 PM #4
Coherent Light's Avatar
Class 3R Laser
 
Join Date: Jul 2010
Location: Hill Country, TX
Posts: 2,185
Rep Power: 51
Coherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond repute
Coherent Light Coherent Light is offline
Class 3R Laser
Coherent Light's Avatar
 
Join Date: Jul 2010
Location: Hill Country, TX
Posts: 2,185
Rep Power: 51
Coherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond reputeCoherent Light has a reputation beyond repute
Default Re: Eyesight question

You're getting older, and if you try to focus too hard you can generate excess tears. That will make things blurry until some of it evaporates. Happens to Me as well, and I have had Lens implants, so I know it's just an issue with focusing too hard instead of letting your eyes focus more slowly.

My 0.02
__________________
Coherent::
Coherent Light is offline   Reply With Quote
Old 02-23-2011, 02:48 PM #5
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Re: Eyesight question

Anselm, nope we have nothing like that at all.

It appears you guys mention astigmatism a lot...
Googled.

Well, guess I really should leave the computer alone for a while huh? I knew it...

I'll let you know if anything changes.
__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote
Old 02-23-2011, 02:55 PM #6
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
anselm anselm is offline
Class 3R Laser
 
Join Date: Nov 2010
Location: Portugal
Posts: 2,470
Rep Power: 84
anselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond reputeanselm has a reputation beyond repute
Default Re: Eyesight question

Instead of that van, sometimes opticians offer a basic check for free, you know,
so they can sell you glasses afterwards.
__________________
I'm away from home and lasers until late July!
Kryton Groove switch workaround
Get your warning label stickers 0.90$ or less, depending on qty
The INDEX to the LPF
Add to it, and spam it from your signature, too!
Beware! Scams a-plenty, don't be a sucker!
___________________________
ATTENTION
This forum is fullfilled mit special electronische equippment. Fingergrabbing and pressing the cnoeppkes from the lasers is
allowed for die experts only! So all the “lefthanders” stay away and do not disturben the brainstorming von here working
intelligencies. Otherwise you will be out thrown and kicked anderswhere! Also: please keep still and only watchen astaunished the blinkenlights.
anselm is offline   Reply With Quote
Old 02-23-2011, 03:06 PM #7
Leodahsan's Avatar
Class 3R Laser
 
Join Date: Aug 2010
Location: Rio Grande do Sul, Brazil
Posts: 2,088
Rep Power: 165
Leodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond repute
Leodahsan Leodahsan is offline
Class 3R Laser
Leodahsan's Avatar
 
Join Date: Aug 2010
Location: Rio Grande do Sul, Brazil
Posts: 2,088
Rep Power: 165
Leodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond repute
Default Re: Eyesight question

@Eudaimonium
Did you had prolonged exposure to 808/1064nm?
__________________
Any doubts, feel free to PM ou send me a visitor message! I'll help as I can.

Best regards,
Leonardo
__________________

* Deploying CNC router project soon...

DONATE!
The smallest donation will help, if you like this enormous information resource, just do it.
Leodahsan is offline   Reply With Quote
Old 02-23-2011, 03:10 PM #8
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Re: Eyesight question

Anselm, I can get my eyes checked, just not sure it's for free.

Leo, nope. Well, define prolonged. I haven't made an IR laser for long time now.
__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote
Old 02-23-2011, 03:11 PM #9
Leodahsan's Avatar
Class 3R Laser
 
Join Date: Aug 2010
Location: Rio Grande do Sul, Brazil
Posts: 2,088
Rep Power: 165
Leodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond repute
Leodahsan Leodahsan is offline
Class 3R Laser
Leodahsan's Avatar
 
Join Date: Aug 2010
Location: Rio Grande do Sul, Brazil
Posts: 2,088
Rep Power: 165
Leodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond repute
Default Re: Eyesight question

Prolonged: Headashes/eye pain because of IR lasers, Yag output or unfiltered green output,
OR
long time exposure without any pain, around >40 hours total exposure with a high irradiation

eye check here in brazil is free (long time waiting, 5+ hours) or paid $7 = 15 minutes wait
__________________
Any doubts, feel free to PM ou send me a visitor message! I'll help as I can.

Best regards,
Leonardo
__________________

* Deploying CNC router project soon...

DONATE!
The smallest donation will help, if you like this enormous information resource, just do it.

Last edited by Leodahsan; 02-23-2011 at 03:14 PM. Reason: correction
Leodahsan is offline   Reply With Quote
Old 02-23-2011, 03:53 PM #10
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Re: Eyesight question

40 hours of exposure? Hell no.

I guess it's simply from staring into this LCD screen for basically all my life.

Will stare more into lasers from now on
__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote
Old 02-23-2011, 03:56 PM #11
Leodahsan's Avatar
Class 3R Laser
 
Join Date: Aug 2010
Location: Rio Grande do Sul, Brazil
Posts: 2,088
Rep Power: 165
Leodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond repute
Leodahsan Leodahsan is offline
Class 3R Laser
Leodahsan's Avatar
 
Join Date: Aug 2010
Location: Rio Grande do Sul, Brazil
Posts: 2,088
Rep Power: 165
Leodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond reputeLeodahsan has a reputation beyond repute
Default Re: Eyesight question

Oh ok. Commonly the IR blurs the eye lenses, that is a private research that I had access but if you do not had a exposure thats ok. Just beware and contact the eye-doctor

Hope you get better dude!
__________________
Any doubts, feel free to PM ou send me a visitor message! I'll help as I can.

Best regards,
Leonardo
__________________

* Deploying CNC router project soon...

DONATE!
The smallest donation will help, if you like this enormous information resource, just do it.
Leodahsan is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 01:59 PM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC