Questions about piggybacked lenses

Discussion in 'Optometry Archives' started by CHip, Jul 27, 2004.

  1. CHip

    CHip Guest

    Because of a lousy LASIK surgery outcome I must wear rigid contacts.
    But my eyes don't tolerate the hard lenses so I must also wear soft
    lenses atop the hard. I've used Focus Night and Day but find them
    difficult to handle because of the lack of tint. I'm trying Acuvue
    Advance that has a milt tint and that makes it much easier to find in
    the well. The soft lenses are plano. Do these have a curve? Does it
    matter which side is against the eye? In fumbling them onto my eye
    sometimes they adhere abruptly and at other times they don't adhere.
    Is this because I'm getting the lenses backwards? When they don't
    adhere it seems that they want to stay attached to my finger tip. How
    can I tell whether the lenses are backwards?

    Thanks in advance for any advice.
    CHip, Jul 27, 2004
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  2. CHip

    Guest Guest


    Softlenses do have a curve even the plano ones.
    When put on your fingertip they must have a "bowl'' shape when you view the
    If they show a "plate'' shape then you put the lens in with the wrong side
    attached to to cornea.
    Bend the lens to the other curve.
    If you are in doubt then look at both shape and pick the most rounded shape.
    Sometimes it helps to let dry the lenses a little bit before placing them on
    the cornea.
    BTW, asked the manufacture or your specialist for a leaflet with

    Strange, an professional specialist should have given a directions for use.

    Hope this helps,

    Jan (normally Dutch spoken)
    Guest, Jul 27, 2004
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  3. CHip

    CHip Guest

    Thanks for the help. It's been like pulling teeth to get any
    assistance from this optometrist. First he wouldn't prescribe soft
    lenses. When I showed him an abstract describing piggybacking he
    relented. But noone has explained how to put these in. I balance the
    soft lens on the tip of my index finger, then drip rewetting solution
    into the lens. Then while forcing my eyelids apart with my other hand
    I bend down to bring my eye to the lens. I routinely lost the Focus
    lens by doing this. At least the Acuvue, having a tint, is easier to
    find if it falls off my finger. Is this how it is supposed to be
    CHip, Jul 28, 2004
  4. CHip

    The Real Bev Guest

    The weight of the saline makes them drop off the finger sometimes. Hard
    to just put ONE drop in :-(
    Sounds like what I do, except for the holding the eyelids apart bit:
    Thumb = 1, little finger = 5. I put the lens (dry fingertip, couple
    drops of saline in the lens) on the right #2 fingertip held horizontal,
    bring my eye down toward it, pull the lower lid down with the right #3
    fingertip, reach over the top of my head and pull my upper lid up with
    the left #2, #3 and #4 fingers, and touch the lens to my eye.

    I have a white breadboard thing that I put across the sink while I do
    this. (A color would be much better because although my lenses claim to
    have a handling tint, they don't. Really. One out of god knows how
    many had a faint bluish tint. One.) On the breadboard I place a plate
    right under my eye. Even so, I've managed to drop lenses into the
    laundry basket below the sink, onto the floor outside the bathroom, and
    on my own chest. I think the damn things have free will and they really
    hate us.
    The Real Bev, Jul 28, 2004
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