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Thread: Polarized Patient Complaint-Cloudy

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    Polarized Patient Complaint-Cloudy

    A job was returned for a 3 rd time yesterday. First remake was for a Dr Rx change and patient claiming lenses are cloudy. Next redo was for patient insisting thinsg seem cloudy...I remade thinking I'm not seeing it but must be there. The returned pair yesterday seems fine..checked inside ...outside..with lamp we use to check ar craze...tried on myself and nothing. What am I missing? Rx is minus with some cylinder processed with a quality (lens manufacturer omitted) cr-39 polarized gray.
    Last edited by PRECISIONLAB; 05-01-2013 at 03:55 PM.

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    One eye sees, the other feels OptiBoard Silver Supporter
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    Hard to say without the history, but can probably be narrowed down to lens color or Rx. If the client is over age 50, the lens color will be the more likely culprit.
    Science is a way of trying not to fool yourself. - Richard P. Feynman

    Experience is the hardest teacher. She gives the test before the lesson.



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    ABOM Wes's Avatar
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    poly?
    Wesley S. Scott, MBA, MIS, ABOM, NCLE-AC, LDO - SC & GA

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    Has the pt ever worn polarized before? Is he wearing them inside a vehicle and looking at the stress pattern on the auto glass? Does he have a cataract?

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    Master OptiBoarder OptiBoard Gold Supporter Judy Canty's Avatar
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    Axis of polarization?

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    ABOM Wes's Avatar
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    Quote Originally Posted by Judy Canty View Post
    Axis of polarization?
    I thought that at first, but 3X?
    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

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    Has the patient had clear lenses made to the new rx?

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    Master OptiBoarder OptiBoard Silver Supporter rdcoach5's Avatar
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    Quote Originally Posted by Wes View Post
    I thought that at first, but 3X?
    It's easy to check. Hold up to your computer screen and rotate clockwise or counter. The screen should blur at the same axis. Next hold a known polarized lens ( like your demo) in front of lenses and confirm that demo held at 90 degrees to your lenses blanks all light......After all that, some people I have found do not like polarized lenses due to the inherent lack of sharpness. Maybe 1 in a hundred, or less.

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    Master OptiBoarder OptiBoard Gold Supporter Judy Canty's Avatar
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    Quote Originally Posted by Wes View Post
    I thought that at first, but 3X?
    Yeah, but it could be a calibration issue or slippage.

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    early onset cataracts?

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    Here is the RX again cr-39 Polarized Gray

    OD -0.50-1.00X145
    OS -0.50-1.00X030 PD 31 OU

    FRAME IS RAYBAN METAL SEMI WRAP

    RX was processed on a 6 base with Polarization axis varified.

    PERHAPS BACKSIDE GLARE????

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    Master OptiBoarder OptiBoard Silver Supporter rdcoach5's Avatar
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    Try adding -0.25 with trial lens. If it cures the cloudiness, there's your answer. Or, it might just be the couple of days that you guys get clouds. The rest of us are used to that weather phenomena- you are not!

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    What is the age of the patient? Older patients often don't do well with polarized lenses due to crystalline lens changes...i.e. early cataracts. I will try to get a lighter polarized lens or just use a regular tint, approz. 50%...in the brown/amber family. OMG, I know, heresy...no one uses a regular tint anymore.

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    Quote Originally Posted by PRECISIONLAB View Post
    Here is the RX again cr-39 Polarized Gray

    OD -0.50-1.00X145
    OS -0.50-1.00X030 PD 31 OU

    FRAME IS RAYBAN METAL SEMI WRAP

    RX was processed on a 6 base with Polarization axis varified.

    PERHAPS BACKSIDE GLARE????
    Tilting around the vertical axis should have very little effect on this Rx unless it's extreme (more than twenty degrees, which seems unlikely). However, there may be reflection(s) on areas of the lens that they are not used to compared to their clear eyeglasses- coated optics may be required, and is generally recommended when used long term (three hour drives. ballgames, etc.).

    Quote Originally Posted by fjpod View Post
    What is the age of the patient? Older patients often don't do well with polarized lenses due to crystalline lens changes...i.e. early cataracts.
    I'm not aware of any research that shows that polarized lenses are generally not recommended for those with cataracts. Care to share?
    Science is a way of trying not to fool yourself. - Richard P. Feynman

    Experience is the hardest teacher. She gives the test before the lesson.



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    Quote Originally Posted by PRECISIONLAB View Post
    Here is the RX again cr-39 Polarized Gray

    OD -0.50-1.00X145
    OS -0.50-1.00X030 PD 31 OU

    FRAME IS RAYBAN METAL SEMI WRAP

    RX was processed on a 6 base with Polarization axis varified.

    PERHAPS BACKSIDE GLARE????
    I always A/R the back of my polarized.

  16. #16
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    Robert, I am not aware of any research either. I can only tell you anecdotally, that when you have an older patient, with acuity reduced two or three lines due to cataract, any maybe a little ARMD, that if you give them a dark polarized lens, especially grey, they will often complain about further reduction in their VA.

    It stands to reason that if their vision is already darkened by a nuclear sclerotic cataract, and if their retina is already less sensitive to light due to age, that using too dark of a lens to reduce Uv exposure can be overkill.

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