Results 1 to 17 of 17

Thread: Have you ever seen AR cause a non-adapt situation?

  1. #1
    Bad address email on file
    Join Date
    Jun 2011
    Location
    Minneapolis
    Occupation
    Dispensing Optician
    Posts
    24

    Question Have you ever seen AR cause a non-adapt situation?

    I have a patient who swears that CR39 is the only material that will work for him. Despite that (thinking that he had never tried Trivex before) one of our opticians tried him in Trivex with Zeiss Purecoat AR. He returned complaining of headaches (as was his complaint in years past when trying poly). During this troubleshoot I checked everything I could think of (including putting his new Rx in a trial frame...through which he saw great), and concluded that perhaps going back to CR39 was the only solution. After wearing the remade lenses in CR39 for 2 weeks he returned again. Same issues. Short of a doctor recheck, would any of you suspect AR as a culprit. I just haven't seen AR negatively affect lenses before, so I'm at a loss until he has his recheck.

    Roscoe

  2. #2
    Master OptiBoarder
    Join Date
    Aug 2010
    Location
    Austin
    Occupation
    Optical Retail
    Posts
    584
    Quote Originally Posted by Roscoe View Post
    I have a patient who swears that CR39 is the only material that will work for him. Despite that (thinking that he had never tried Trivex before) one of our opticians tried him in Trivex with Zeiss Purecoat AR. He returned complaining of headaches (as was his complaint in years past when trying poly). During this troubleshoot I checked everything I could think of (including putting his new Rx in a trial frame...through which he saw great), and concluded that perhaps going back to CR39 was the only solution. After wearing the remade lenses in CR39 for 2 weeks he returned again. Same issues. Short of a doctor recheck, would any of you suspect AR as a culprit. I just haven't seen AR negatively affect lenses before, so I'm at a loss until he has his recheck.

    Roscoe
    Definitely worth a read and an understanding:

    http://www.optiboard.com/forums/show...t=newton+rings

  3. #3
    Master OptiBoarder
    Join Date
    Mar 2010
    Location
    north of 49
    Occupation
    Dispensing Optician
    Posts
    2,987
    When you dispense a Anti-reflection coating, there are many advantages to this product.......but remember to inform about the downside, especially with someone who has not participated in the use of the product, previously, or was deemed to be a fail using the product.


    Negatives of AR coating:

    Increased light transmission compared to lens without, the approximate % is 8-10%, depending on the index of refraction of lens reviously worn, and lens index proposed.

    Marks and scratches are more apparent to wearer.....but are not increased in volume(as percieved), but may seem pronounced.

    Oils interfere with coating's ability to function.......therefore an oil-free environment is desired for best functionality.

    Certain optical characteristics within lens, including optical illusion of material behind lens will be more enhanced.

    Infrared transmissibility may also be increased depending on base material of lens.

    Life span of AR coating may limit useful life of lenses, reciprocal to quality of coating afforded.

    Maybe more later(coffee break)
    uncut
    Eyes wide open

  4. #4
    Bad address email on file
    Join Date
    Jun 2011
    Location
    Minneapolis
    Occupation
    Dispensing Optician
    Posts
    24
    Thanks much, Austinwear and uncut!

  5. #5
    ABOM Wes's Avatar
    Join Date
    Nov 2007
    Location
    Earth
    Occupation
    Optical Laboratory Technician
    Posts
    3,183
    A patient will reject an AR coating if it is crazed...
    Wesley S. Scott, MBA, MIS, ABOM, NCLE-AC, LDO - SC & GA

    “As our circle of knowledge expands, so does the circumference of darkness surrounding it.” -Albert Einstein

  6. #6
    Bad address email on file
    Join Date
    Jun 2011
    Location
    Minneapolis
    Occupation
    Dispensing Optician
    Posts
    24
    My patient's lenses (with AR) looked great, with no crazing and no newton noise waves (as described in the posts above). So, I'm still stumped after reading the posts (and linked posts) above.

  7. #7
    ABOM Wes's Avatar
    Join Date
    Nov 2007
    Location
    Earth
    Occupation
    Optical Laboratory Technician
    Posts
    3,183
    The increased light transmission mentioned can aggravate "sensitive" patients as everything looks much "brighter". Your patient sounds like a sensitive one. What's the rx, base curve, frame size, wrap/tilt...
    Wesley S. Scott, MBA, MIS, ABOM, NCLE-AC, LDO - SC & GA

    “As our circle of knowledge expands, so does the circumference of darkness surrounding it.” -Albert Einstein

  8. #8
    Bad address email on file
    Join Date
    Jun 2011
    Location
    Minneapolis
    Occupation
    Dispensing Optician
    Posts
    24
    OD: -1.25 -0.50 126
    OS: -1.00 -0.75 059

    Frame: 53-18; B=29 (FPD: 71)
    PD's: 34/36 (DPD: 70)
    OC: 15
    BC: 5
    Wrap: 12 deg.
    Panto: 5 deg.

  9. #9
    Master OptiBoarder CCGREEN's Avatar
    Join Date
    Jul 2004
    Location
    Emerald Coast of Florida
    Occupation
    Dispensing Optician
    Posts
    933
    Its great to try and resolve the issue for the patient. It makes them happy and makes you gratified. But at what point do you stop trying to give them something that they already told you they would not like? Just make them 20/happy give them what they want even though you see no reason that they should not be able to wear what you suggested. Then if you want to scratch your head and solve the mystery in your spare time.........enjoy

  10. #10
    Master OptiBoarder OptiBoard Silver Supporter
    Join Date
    Jan 2007
    Location
    Massachusetts
    Occupation
    Dispensing Optician
    Posts
    1,317
    I believe there are occasions when the client is determined to be right about these sorts of things. Statements of the sort "I never..." or "I always..." are clues of this type of thinking. Let them be right, and don't go through multiple remakes trying to convince them something else will work.

  11. #11
    Master OptiBoarder
    Join Date
    Mar 2010
    Location
    north of 49
    Occupation
    Dispensing Optician
    Posts
    2,987
    Quote Originally Posted by Wes View Post
    The increased light transmission mentioned can aggravate "sensitive" patients as everything looks much "brighter". Your patient sounds like a sensitive one. What's the rx, base curve, frame size, wrap/tilt...
    I think Wes might have the best explanation, Roscoe.........it the person is sensitive, possibly contends with edema of the cornea due to allergies, medications, or works in an over-lit facility, or outdoors, then increasing the light transmission, when he is unaccustomed to it, would create discomfort.
    Eyes wide open

  12. #12
    ABOM Wes's Avatar
    Join Date
    Nov 2007
    Location
    Earth
    Occupation
    Optical Laboratory Technician
    Posts
    3,183
    Quote Originally Posted by uncut View Post
    I think Wes might have the best explanation, Roscoe.........it the person is sensitive, possibly contends with edema of the cornea due to allergies, medications, or works in an over-lit facility, or outdoors, then increasing the light transmission, when he is unaccustomed to it, would create discomfort.
    Hey, you mentioned it first! I just elaborated.
    Wesley S. Scott, MBA, MIS, ABOM, NCLE-AC, LDO - SC & GA

    “As our circle of knowledge expands, so does the circumference of darkness surrounding it.” -Albert Einstein

  13. #13
    Master OptiBoarder
    Join Date
    Mar 2010
    Location
    north of 49
    Occupation
    Dispensing Optician
    Posts
    2,987
    High-five(I can't find that emodicon)
    Eyes wide open

  14. #14
    Master OptiBoarder
    Join Date
    Jun 2008
    Location
    Seattle WA
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    3,137
    I have a few patient non-adapt to Trivex. Even a -.50. Rare, but it can happen. BC could also be an issue. CR-39 is a terrific material, the clarity is awesome.

    AR should not cause any problems itself, but the hard coat might. Its possible the lab through on a 1.50 or 1.60 hard coat, which should be indexed matched for best results. Order a Stock Lens, and it will eliminate that issue.

    Quote Originally Posted by Roscoe View Post
    I have a patient who swears that CR39 is the only material that will work for him. Despite that (thinking that he had never tried Trivex before) one of our opticians tried him in Trivex with Zeiss Purecoat AR. He returned complaining of headaches (as was his complaint in years past when trying poly). During this troubleshoot I checked everything I could think of (including putting his new Rx in a trial frame...through which he saw great), and concluded that perhaps going back to CR39 was the only solution. After wearing the remade lenses in CR39 for 2 weeks he returned again. Same issues. Short of a doctor recheck, would any of you suspect AR as a culprit. I just haven't seen AR negatively affect lenses before, so I'm at a loss until he has his recheck.

    Roscoe

  15. #15
    Master OptiBoarder
    Join Date
    Jun 2008
    Location
    Seattle WA
    Occupation
    Optical Wholesale Lab (other positions)
    Posts
    3,137
    Quote Originally Posted by uncut View Post
    I think Wes might have the best explanation, Roscoe.........it the person is sensitive, possibly contends with edema of the cornea due to allergies, medications, or works in an over-lit facility, or outdoors, then increasing the light transmission, when he is unaccustomed to it, would create discomfort.
    You can test this out with a 10% tint if you like, if the tint brings relief you have found your issue.

  16. #16
    One eye sees, the other feels. OptiBoard Gold Supporter
    Join Date
    Jul 2002
    Location
    Wauwatosa Wi
    Occupation
    Dispensing Optician
    Posts
    5,162
    Quote Originally Posted by Roscoe View Post
    Have you ever seen AR cause a non-adapt situation?
    No. Your client's problem lies elsewhere- excessive wrap angle, change in Rx, emerging presbyope, etc.

    OTOH, if your client has an irrational belief...
    Roberts Optical Ltd.
    Wauwatosa Wi.
    www.roberts-optical.com
    ~~~~~~~~~~~~~~~~~~
    Science is a way of trying not to fool yourself. - Richard P. Feynman

    It is easier to fool a man, than to convince a man he has been fooled. -Mark Twain

  17. #17
    Master OptiBoarder OptiBoard Gold Supporter
    OptiBoard Silver Supporter

    Join Date
    Mar 2012
    Location
    Maryland
    Occupation
    Dispensing Optician
    Posts
    2,101
    I was gonna mention that wrap angle also, 12 degrees wrap with 5 degrees panto? Thats an odd fit, but I didn't want to make judgments on the gentleman's facial struction.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Comfort Non-Adapt
    By jhegyi in forum Progressive Lens Discussion Forum
    Replies: 9
    Last Post: 12-08-2011, 09:39 AM
  2. polarized non adapt???
    By sheena in forum General Optics and Eyecare Discussion Forum
    Replies: 6
    Last Post: 04-16-2010, 05:28 PM
  3. progressive non-adapt/
    By rdcoach5 in forum General Optics and Eyecare Discussion Forum
    Replies: 0
    Last Post: 05-14-2008, 08:51 PM
  4. Please help w/ Non-Adapt!
    By s-man-optiker in forum Progressive Lens Discussion Forum
    Replies: 12
    Last Post: 12-02-2006, 11:15 AM
  5. non-adapt
    By omisliebling in forum General Optics and Eyecare Discussion Forum
    Replies: 14
    Last Post: 11-15-2004, 01:04 PM

Tags for this Thread

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
  •