FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   PreferencesPreferences   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Forum index » Medicine forums » vision
Pupillary distance
Post new topic   Reply to topic Page 1 of 1 [6 Posts] View previous topic :: View next topic
Author Message
Robert Martellaro
medicine forum Guru Wannabe


Joined: 03 May 2005
Posts: 187

PostPosted: Wed Jul 19, 2006 9:56 pm    Post subject: Re: Pupillary distance Reply with quote

On Wed, 19 Jul 2006 14:05:46 +0000 (UTC), Tony Houghton
<this.address.is.fake@realh.co.uk> wrote:

Quote:
In <44be355c$0$72148$c30e37c6@ken-reader.news.telstra.net>,
Dom <dont@spam.me> wrote:

Tony Houghton wrote:
My optician has given me two PD figures: 66 distance and 63 near. I tend
to spend more time reading and using a computer than driving and outdoor
activities. For single vision lenses, which figure would it be better to
use, or should I compromise somewhere in between?


Are you short sighted (minus prescription) or long sighted (plus
prescription)?

R: Sph -6.25 Cyl -0.75 Axis 15
L: Sph -6.50 Cyl -0.50 Axis 42.5

Your dispensing optician should determine the monocular interpupillary distance.
The numbers should look like- 35/31, 33/33, or 32/34, in other words each eye
individually. Very important for complex lens designs (aspherics, atorics, PALs)
and for stronger powers.

I would usually use the distance IPD for both distance and readers, allowing the
principal axis to pass through the center of rotation of the eye.

Hope this helps,



Robert Martellaro
~~~~~~~~~~~~~~~~~~
Optician/Owner
Roberts Optical
~~~~~~~~~~~~~~~~~~
"If a million people believe a foolish thing, it is still a foolish thing."
- Anatole France
Back to top
Tony Houghton
medicine forum beginner


Joined: 19 Jul 2006
Posts: 5

PostPosted: Wed Jul 19, 2006 5:18 pm    Post subject: Re: Pupillary distance Reply with quote

In <1153325555.229521.241290@h48g2000cwc.googlegroups.com>,
Dr Judy <mpace99@rogers.com> wrote:

Quote:
Tony Houghton wrote:
My optician has given me two PD figures: 66 distance and 63 near. I tend
to spend more time reading and using a computer than driving and outdoor
activities. For single vision lenses, which figure would it be better to
use, or should I compromise somewhere in between?

If the glasses are your distance correction (make distance clear but
also used for reading and computer), then you would use the distance
pd, if they are reading glasses (you are over forty and these glasses
will blur your distance vision) you would use the near. Usually the
glasses fitter figures this out for you.

I'm short-sighted and not old enough to need bifocals, varifocals or
separate reading glasses, so I suppose I should go for the far figure.
However, I did notice with my new glasses with the chromatic aberration
I could see OK in the distance but it was difficult to focus on text
with both eyes at once.

--
The address in the Reply-To is genuine and should not be edited.
See <http://www.realh.co.uk/contact.html> for more reliable contact addresses.
Back to top
Dr Judy
medicine forum Guru


Joined: 07 May 2005
Posts: 304

PostPosted: Wed Jul 19, 2006 4:12 pm    Post subject: Re: Pupillary distance Reply with quote

Tony Houghton wrote:
Quote:
My optician has given me two PD figures: 66 distance and 63 near. I tend
to spend more time reading and using a computer than driving and outdoor
activities. For single vision lenses, which figure would it be better to
use, or should I compromise somewhere in between?

--
The address in the Reply-To is genuine and should not be edited.
See <http://www.realh.co.uk/contact.html> for more reliable contact addresses.

If the glasses are your distance correction (make distance clear but
also used for reading and computer), then you would use the distance
pd, if they are reading glasses (you are over forty and these glasses
will blur your distance vision) you would use the near. Usually the
glasses fitter figures this out for you.

Dr Judy
Back to top
Tony Houghton
medicine forum beginner


Joined: 19 Jul 2006
Posts: 5

PostPosted: Wed Jul 19, 2006 2:05 pm    Post subject: Re: Pupillary distance Reply with quote

In <44be355c$0$72148$c30e37c6@ken-reader.news.telstra.net>,
Dom <dont@spam.me> wrote:

Quote:
Tony Houghton wrote:
My optician has given me two PD figures: 66 distance and 63 near. I tend
to spend more time reading and using a computer than driving and outdoor
activities. For single vision lenses, which figure would it be better to
use, or should I compromise somewhere in between?


Are you short sighted (minus prescription) or long sighted (plus
prescription)?

R: Sph -6.25 Cyl -0.75 Axis 15
L: Sph -6.50 Cyl -0.50 Axis 42.5

--
The address in the Reply-To is genuine and should not be edited.
See <http://www.realh.co.uk/contact.html> for more reliable contact addresses.
Back to top
JohnDoe
medicine forum Guru


Joined: 14 Jun 2005
Posts: 364

PostPosted: Wed Jul 19, 2006 1:36 pm    Post subject: Re: Pupillary distance Reply with quote

Tony Houghton wrote:
Quote:
My optician has given me two PD figures: 66 distance and 63 near. I tend
to spend more time reading and using a computer than driving and outdoor
activities. For single vision lenses, which figure would it be better to
use, or should I compromise somewhere in between?


Are you short sighted (minus prescription) or long sighted (plus
prescription)?

Dom
Back to top
Tony Houghton
medicine forum beginner


Joined: 19 Jul 2006
Posts: 5

PostPosted: Wed Jul 19, 2006 12:34 pm    Post subject: Pupillary distance Reply with quote

My optician has given me two PD figures: 66 distance and 63 near. I tend
to spend more time reading and using a computer than driving and outdoor
activities. For single vision lenses, which figure would it be better to
use, or should I compromise somewhere in between?

--
The address in the Reply-To is genuine and should not be edited.
See <http://www.realh.co.uk/contact.html> for more reliable contact addresses.
Back to top
Google

Back to top
Display posts from previous:   
Post new topic   Reply to topic Page 1 of 1 [6 Posts] View previous topic :: View next topic
The time now is Wed Apr 25, 2018 2:04 pm | All times are GMT
Forum index » Medicine forums » vision
Jump to:  

Similar Topics
Topic Author Forum Replies Last Post
No new posts Question about Pupillary Dilation Test procedure nickname vision 3 Thu Jul 20, 2006 7:46 pm
No new posts Cataract Surgery and Choice of Focal Distance JJ Lee vision 16 Fri Jun 09, 2006 12:47 pm
No new posts Astigmatism vs. distance biscuit vision 14 Sun Feb 19, 2006 4:44 pm
No new posts Distance Sought Between Doctors and Drug Industry TC nutrition 13 Thu Jan 26, 2006 10:11 pm
No new posts Presbyopia : does 1's minimum distance needed vary with s... TE Cheah vision 8 Tue Dec 20, 2005 8:24 am

Copyright © 2004-2005 DeniX Solutions SRL
Other DeniX Solutions sites: email marketing campaigns , electronics forum, Science forum, Unix/Linux blog, Unix/Linux documentation, Unix/Linux forums


Powered by phpBB © 2001, 2005 phpBB Group
[ Time: 0.0147s ][ Queries: 20 (0.0023s) ][ GZIP on - Debug on ]