Results 1 to 22 of 22

Thread: Taking Progressive or Bifocal Seg Heights

  1. #1
    OptiBoard Apprentice Lyrix76's Avatar
    Join Date
    Feb 2006
    Location
    NY
    Occupation
    Ophthalmic Technician
    Posts
    18

    Big Smile Taking Progressive or Bifocal Seg Heights

    Hi, for anyone out there, I'm having a small problem w/taking seg heights I never can tell if the customer is sitting at the same height as I am???? Does anyone have a cure for this problem?? If so PLEASE HELP!!!, I'm 5'5" & vertically challenged, especially when it comes to seeing if someone is sitting at the same height as I am :( please help! the funny thing is though, that I always seem to get the height right, but I'm a perfectionist, so I need everything to be just so.

    Thanks Everyone

  2. #2
    Master OptiBoarder QDO1's Avatar
    Join Date
    Sep 2005
    Location
    UK
    Occupation
    Dispensing Optician
    Posts
    1,963
    Quote Originally Posted by Lyrix76
    Hi, for anyone out there, I'm having a small problem w/taking seg heights I never can tell if the customer is sitting at the same height as I am???? Does anyone have a cure for this problem?? If so PLEASE HELP!!!, I'm 5'5" & vertically challenged, especially when it comes to seeing if someone is sitting at the same height as I am :( please help! the funny thing is though, that I always seem to get the height right, but I'm a perfectionist, so I need everything to be just so.

    Thanks Everyone
    put a large mirror to the side of the patient, on the wall - and have a quick look. I am 6'5, and have the opisite problem, and thats what I do If I can
    Richard King
    Webdesign: http://www.placeofdesign.com
    Photography:
    http://www.kingprophoto.com

  3. #3
    Master OptiBoarder rbaker's Avatar
    Join Date
    May 2000
    Location
    Massachusetts & Oregon
    Occupation
    Other Optical Manufacturer or Vendor
    Posts
    2,966
    Blog Entries
    1
    In keeping with my New Years resolution to try to be more sarcastic in 2006, I submit the following.
    • Get a carpenters framing level at least four feet long.
    • Assume the position.
    • Place one end on top of patients left ear and the other end on the top of your right ear.
    • Have colleague view spirit levels from the side and advise you when level.
    • Take appropriate segment height measurement.
    • With level still in place have another colleague take a vertical measurement from lower edge of level to outer canthus of the patients left eye.
    • While still maintaining the proper position have another colleague take a vertical measurement from the lower edge of the level to the outer canthus of your right eye.
    • Adjust your measurements trigonometrically to account for the slant induced by the difference in the vertical height between both yours and the patients facial dissymmetry.
    • Write 2 below on the order form.
    Duck soup


  4. #4
    Banned
    Join Date
    Jun 2000
    Location
    Only City in the World built over a Volcano
    Occupation
    Dispensing Optician
    Posts
    13,002
    Always re-check this with the patient standing, in a relaxed stance looking straight ahead, eyes in level gaze. Measurements taken at a table are not reliable as your ht., the patient's ht., sitting posture, etc. all influcence the results.

  5. #5
    C-10
    Join Date
    Oct 2005
    Location
    Thunder Bay, ON
    Occupation
    Dispensing Optician
    Posts
    202
    Quote Originally Posted by chip anderson
    Always re-check this with the patient standing, in a relaxed stance looking straight ahead, eyes in level gaze. Measurements taken at a table are not reliable as your ht., the patient's ht., sitting posture, etc. all influcence the results.
    Keep in minded that if you are a little shorter than most people you maybe a little low when measuring standing up so what I do is to try to sq. myself with them when sitting down and take the difference

  6. #6
    Master OptiBoarder Snitgirl's Avatar
    Join Date
    May 2005
    Location
    North Vancouver, British Columbia, Canada
    Occupation
    Dispensing Optician
    Posts
    1,760
    Just a tip:

    The chair that you are sitting on while taking the measurement, make sure you can adjust it to go higher or lower.

  7. #7
    OptiBoard Apprentice Lyrix76's Avatar
    Join Date
    Feb 2006
    Location
    NY
    Occupation
    Ophthalmic Technician
    Posts
    18

    Hi

    Quote Originally Posted by QDO1
    put a large mirror to the side of the patient, on the wall - and have a quick look. I am 6'5, and have the opisite problem, and thats what I do If I can
    Hi, thanks so much for the response, unfortunately in our store that's not really possible to do. But I do appreciate the advice, thanks again :bbg:

  8. #8
    OptiBoard Apprentice Lyrix76's Avatar
    Join Date
    Feb 2006
    Location
    NY
    Occupation
    Ophthalmic Technician
    Posts
    18
    Quote Originally Posted by rbaker
    In keeping with my New Years resolution to try to be more sarcastic in 2006, I submit the following.
    • Get a carpenters framing level at least four feet long.
    • Assume the position.
    • Place one end on top of patients left ear and the other end on the top of your right ear.
    • Have colleague view spirit levels from the side and advise you when level.
    • Take appropriate segment height measurement.
    • With level still in place have another colleague take a vertical measurement from lower edge of level to outer canthus of the patients left eye.
    • While still maintaining the proper position have another colleague take a vertical measurement from the lower edge of the level to the outer canthus of your right eye.
    • Adjust your measurements trigonometrically to account for the slant induced by the difference in the vertical height between both yours and the patients facial dissymmetry.
    • Write 2 below on the order form.
    Duck soup

    LOL very funny, I needed that thanks:cheers:

  9. #9
    Master OptiBoarder OptiBoard Silver Supporter karen's Avatar
    Join Date
    May 2000
    Location
    Rancho Cucamonga, Ca
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    1,324
    I am a tall girl so I would-when in doubt, get up, go around the table get on my knees (behave everybody!!) and make sure I was on eye level and double check my measurements. After I dotted then I would go back around sit down and talk to them for a few minutes to see how they really held their head in real life (you say "measurement" to some folks and they tense right up) As time went by and I got more confident I did not need to do it as often but it always helped.
    Let the refining and improving of your own life keep you so busy that you have little time to criticize others. -H. Jackson Brown Jr.

    If the only tool you have is a hammer you will approach every problem as though it were a nail

  10. #10
    Bad address email on file
    Join Date
    Jan 2006
    Location
    panama
    Posts
    78
    Maybe a stupid idea but if there where a device that is placed in the frame near the customer pupil level that would be like a hologram that you see the correct image if you are at the level of the customer. Or something you should line up.

  11. #11
    Rising Star
    Join Date
    Aug 2005
    Location
    California
    Occupation
    Dispensing Optician
    Posts
    91
    Watching the patient's head movement/posture is very important to me while I'm taking seg heights. I make the measuring part of the process as low-key as possible so they don't tense up, have them stand up and look out the window while I watch to see if they are looking through where I marked the lenses, and then we sit down and talk about the order some more so they will forget about being tense. If the marks still line up after all this, great- otherwise I adjust them a little bit as needed. Make sure you've adjusted the frame before starting all this, too! :bbg:
    It's like being a travel agent... I help people see the world!

  12. #12
    OptiBoard Apprentice
    Join Date
    Feb 2006
    Location
    San Bernardino, CA
    Occupation
    Dispensing Optician
    Posts
    10

    Big Smile Seg Height

    Yes - I echo what Nicole said. I work in a store in a mall and I always (especially with a lined b/f) mark the seg and then have them turn around and look out across the mall to make sure that the line does not interfere with their distance vision.

    It's tougher with PALS, as the lab ultimately has some leeway (I think like 2mm) as to where they place the seg. But a slight adjustment of nosepads or panto at dispensing can also correct any minimal problems.

    Chris

  13. #13
    Master OptiBoarder spartus's Avatar
    Join Date
    Jan 2005
    Location
    CA
    Occupation
    Optical Retail
    Posts
    552
    Quote Originally Posted by CJ65
    It's tougher with PALS, as the lab ultimately has some leeway (I think like 2mm) as to where they place the seg. But a slight adjustment of nosepads or panto at dispensing can also correct any minimal problems.
    If the lab's moving my seg measurement 2 mm, I'm changing labs. Yesterday.

  14. #14
    Guerrilla Optician OptiBoard Bronze Supporter Framebender's Avatar
    Join Date
    May 2000
    Location
    Georgetown, TX
    Occupation
    Dispensing Optician
    Posts
    1,203

    Big Smile I'm killin'. . .

    the lab rat and holding his body hostage!!
    :drop:

  15. #15
    Bad address email on file mhboptics's Avatar
    Join Date
    Mar 2006
    Location
    Long Island, New York
    Occupation
    Dispensing Optician
    Posts
    11
    I like to have the patient sitting, use a sharpie and dot the center. Then with them sitting, you can stand in any position to feel eye level.

  16. #16
    opti-tipster harry a saake's Avatar
    Join Date
    May 2000
    Location
    lake norman, north carolina
    Occupation
    Dispensing Optician
    Posts
    2,040

    segs

    lyrix, here is a little double check you can do, that will be right the vast majority of times. It,s called Saake,s rule of 35. If you have measured correctly almost all line segs will fall 3 to 5 mm below the datum line. All progressives will usually be 3 to 5 mm above the datum line. There are always the exceptions and a typical example might be an aviator frame with a long "B" measurement. If you have a frame with a "B" measurement of say, 28 mm and you wind up with a reading of 13 mm, i would remeasure.

  17. #17
    OptiBoard Apprentice Lyrix76's Avatar
    Join Date
    Feb 2006
    Location
    NY
    Occupation
    Ophthalmic Technician
    Posts
    18

    What great advice~!

    Quote Originally Posted by harry a saake
    lyrix, here is a little double check you can do, that will be right the vast majority of times. It,s called Saake,s rule of 35. If you have measured correctly almost all line segs will fall 3 to 5 mm below the datum line. All progressives will usually be 3 to 5 mm above the datum line. There are always the exceptions and a typical example might be an aviator frame with a long "B" measurement. If you have a frame with a "B" measurement of say, 28 mm and you wind up with a reading of 13 mm, i would remeasure.
    Hi Harry, thanks so much for the tip, next time I'm at work I'm definitely going to try it on for size (pun intended :bbg:) You really should patent that! Thanks Again

  18. #18
    Manuf. Lens Surface Treatments OptiBoard Gold Supporter
    Join Date
    Aug 2002
    Location
    Back in the at work mode.
    Occupation
    Other Optical Manufacturer or Vendor
    Posts
    17,863
    Blog Entries
    3

    Blue Jumper Measurements taken at a table are not reliable..............

    Quote Originally Posted by chip anderson
    Always re-check this with the patient standing, in a relaxed stance looking straight ahead, eyes in level gaze. Measurements taken at a table are not reliable as your ht., the patient's ht., sitting posture, etc. all influcence the results.
    I would even go a little further................have the person walk around the store relaxing and when you know he or she is holding the head in a normal way tell them to freeze........................and then measure.

    You will find out that the measuremnts usually are very different from measuring at the table.
    Chris Ryser
    ________________________________________
    DLO. NA.IC.I.T.PO

    http://optochemicals.com............................. http://arcoatings.com

  19. #19
    OptiBoard Professional
    Join Date
    Feb 2006
    Location
    Indianola, Iowa
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    134
    Does anyone have any experience with the Y-Stick2? We have had good feedback and have one customer that has three in their store

  20. #20
    OptiBoard Apprentice
    Join Date
    Dec 2005
    Location
    New York
    Occupation
    Dispensing Optician
    Posts
    39

    Practice makes perfect

    Taking seg hgts in todays optical marketplace is actually easy as compared to back in the eighties,when seg hgts had to be measured for 60 eye aviators with ed's as big as big as Sylvestor Stalone's ego.Now with such small eyesizes I dare say yhat you could make all your seg hgts for progressives 19 high and ft's 14 high without even measuring and you would be okay.In fact it is so standardized that I trained the lab workers that if the hgts are not these that they might tactifully ask the opticians to check for a written error! I wonder how many optiboard members have an AO Grollman progressive measuring device collecting dust somwhere in their office!

    tpl054

  21. #21
    One of the worst people here
    Join Date
    Jan 2004
    Location
    Canada
    Occupation
    Other Eyecare-Related Field
    Posts
    8,330
    Quote Originally Posted by TPL
    Taking seg hgts in todays optical marketplace is actually easy as compared to back in the eighties,when seg hgts had to be measured for 60 eye aviators with ed's as big as big as Sylvestor Stalone's ego.Now with such small eyesizes I dare say yhat you could make all your seg hgts for progressives 19 high and ft's 14 high without even measuring and you would be okay.In fact it is so standardized that I trained the lab workers that if the hgts are not these that they might tactifully ask the opticians to check for a written error! I wonder how many optiboard members have an AO Grollman progressive measuring device collecting dust somwhere in their office!

    tpl054
    most of my heights are not 19 and 14, and if I fit them like that I would be in trouble

  22. #22
    OptiBoard Novice
    Join Date
    Jun 2005
    Location
    Texas
    Posts
    4
    Quote Originally Posted by harry a saake
    lyrix, here is a little double check you can do, that will be right the vast majority of times. It,s called Saake,s rule of 35. If you have measured correctly almost all line segs will fall 3 to 5 mm below the datum line. All progressives will usually be 3 to 5 mm above the datum line. There are always the exceptions and a typical example might be an aviator frame with a long "B" measurement. If you have a frame with a "B" measurement of say, 28 mm and you wind up with a reading of 13 mm, i would remeasure.
    I echo this...:cheers: On a 7x28 however go 2mm

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Bifocal Heights..or Lows
    By Clive Noble in forum General Optics and Eyecare Discussion Forum
    Replies: 23
    Last Post: 03-04-2006, 11:02 AM
  2. New thinking on progressive heights?
    By drk in forum Progressive Lens Discussion Forum
    Replies: 28
    Last Post: 02-03-2006, 03:01 PM
  3. Blended Executive and the Optical Constraints of Progressives
    By Darryl Meister in forum Ophthalmic Optics
    Replies: 21
    Last Post: 06-16-2005, 12:34 AM
  4. Replies: 0
    Last Post: 06-03-2003, 08:56 PM
  5. When to use different seg heights
    By Himyope in forum General Optics and Eyecare Discussion Forum
    Replies: 11
    Last Post: 04-17-2003, 02:14 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
OptiBoard is proudly sponsored by:
FEA Industries, Younger Optics, Carl Zeiss Vision, Vision Systems, Inc. and Chemistrie Eyewear