RGPs - more likely to lose them if large/small?

Discussion in 'Optometry Archives' started by Pipino Il Breve, Dec 23, 2003.

  1. ROAR!! I have lost an RGP out of home without realizing :-((

    I can choose 2 equally valid diameters (not BCs) for RGP lenses for my
    eyes. I am now considering the next purchase: do you think it is more
    likely to lose a larger-diameter lens, or a smaller-diameter lens?

    (I'm speaking about diameters being around 9.40: it's not a full cornea
    coverage)

    Thanks in advance
     
    Pipino Il Breve, Dec 23, 2003
    #1
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  2. Pipino Il Breve

    Jan Guest

    Pipino, there is no straight answer.
    BTW, it is a long time ago that you had problems with contactlenses.
    Is the switch from softlenses to RGP lenses making this possible?
    Anyway, glad it is working fine.(except for losing one)

    Jan (normally Dutch spoken)
     
    Jan, Dec 23, 2003
    #2
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  3. Pipino Il Breve

    LarryDoc Guest

    Generally, larger is less likely to be "lost", but not necessarily as it
    depends upon lid position and tightness, peripheral curvature and edge
    lift.

    And, by the way, when you increase the diameter, the lens oftentimes
    requires a completely different set of peripheral curves and edge
    configuration. If it ashperic, it requires a different eccentricity
    value.

    --LB

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

    The Eyecare Connection
    http//www.eyecarecontacts.com
    larrydoc at eye-care-contacts dot com (remove -)
     
    LarryDoc, Dec 24, 2003
    #3
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