Boston ES rgp lens

Discussion in 'Optometry Archives' started by tenplay, Jul 29, 2004.

  1. tenplay

    tenplay Guest

    I just saw my optometrist for my biannual checkup. I was surprised when
    he prescribed Boston ES rgp contact lens just as he had done 2.5 years
    ago. He said that it is still the "workhorse" of rgp's, that nothing
    better had been developed in recent years. Is this true? I had
    expected that more comfortable and permeable lens would be available.
    tenplay, Jul 29, 2004
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  2. tenplay

    LarryDoc Guest

    Lens design is often far more critical to comfort than material

    If your lens design requires a RGP lenses with minimal flexure and you
    dont need a high DK (oxygen permeability) lens, Boston ES is indeed a
    "workhorse" lens. It is one of the RGPs that is fairly easy to modify
    and adjust in-office, for example. If your lenses are comfortable and
    eyes healthy after wearing them, then it is reasonable to stay with that
    material. You know, the "if it aint broke, don't fix it" kind of

    Other than that, there are plenty of newer, and older materials that
    offer significantly higher gas permeability, lower wetting angles and
    less mass overall.

    Why not simply ask him why he chose that material?


    Dr. Larry Bickford, O.D.
    Family Practice Eye Health & Vision Care

    The Eyecare Connection
    larrydoc at eye-care-contacts dot com (remove -)
    LarryDoc, Jul 30, 2004
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  3. tenplay

    tenplay Guest

    My doctor said that the other choices would not last as long as Boston
    ES - one year instead of two. What are the advantages of higher gas
    permeability, lower wetting angles and less mass overall?
    tenplay, Aug 3, 2004
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