Wearing bi-weekly contact lenses longer?

Discussion in 'Contact Lenses' started by SQ, Jan 18, 2008.

  1. SQ

    SQ Guest

    I have CooperVision CE and have been using a set for about 3 months
    now
    with no apparent issues. Basically, I have been using them like annual
    contacts.

    I do get heavy protein deposits so that the contact lenses require
    cleaning
    every 3 days or so with enzymatic cleaner.

    I wear them 2-3 days per week at most, every other day. About 12
    hours
    per day at most.

    I've had one contact lense tear, as the bi-weekly lenses are thinner
    and
    easier to tear than annual ones.

    I understand that one rule of thumb is, if you can feel contacts, you
    shouldn't
    wear them.

    Question, do these lenses degrade with time, and should they be
    replaced
    even if they look good and everything feels right?
     
    SQ, Jan 18, 2008
    #1
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  2. When you buy a 6 pack of disposable razors, do you wait until you
    bleed one-too-many times before you change them? When you buy a 6
    pack of underwear, do you wear each pair until they are disgusting,
    and then go for the next one?

    If you answer "No" to those questions, you can understand what the
    answer is to your question. Disposable contacts are a commodity, like
    a razor, and you should let your calendar tell you to throw them away,
    and not your eyes. Today's lenses are so comfortable that they can be
    two sizes too tight from build-up and still not "hurt". Throw em
    out. Save money on skipping bottled water, not your eyes.
     
    doctor_my_eye, Jan 29, 2008
    #2
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  3. No. Razors nick me more when they're new. I replace
    razors when they pull too hard and don't cut [skip] hairs.
    Amazing quality differences.
    No. I wear one pair for one day, then follow appropriate
    cleaning and disinfection protocols and solutions. Then
    wear again. Only discarded when no longer serviceable.
    No, "no" can mean more than one thing. "Yes" is more specific
    Why? And more importantly, why believe the FDA is correct?
    What confidence limits are they using in their testing? What is
    the dispersion/std.dev of results? Yes, 95% of wearers may exhibit
    no detectable incremental pathology between one week wear and two
    week wear. But what if you are part of that 5%? Or part of the
    70?% who would see no increase at four weeks? People should know
    their bodies, and ideally their opth would test them out.

    What "two sizes"? BC is the usual fitting parameter, and "two
    sizes" is something like 8.1 vs 8.9. If that much protein
    builds-up, visual acuity will be shot. And the lenses will
    hurt like _h3ll_. The newer silicone hydrogels are only
    more comfortable with respect to oxygenation and retarding
    (not eliminating) neovascularization. No better for fit.

    Why do you believe saving money is the primary motivation?
    Are you projecting your values?


    -- Robert
     
    Robert Redelmeier, Jan 30, 2008
    #3
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