[Jewelry making - Article 00061] - Re: [Orchid] Jewelry Making and Vision Problems

[Brian]

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>     On the subject of vision problems, My doctor believes I may be
>     getting cataracts as an exacerbation of Crohn's disease. Have any
>     of you, my fellow Orchidians, ever had cataracts? More to the
>     point, have you had them removed and how was your vision
>     afterwords? 

    I'm 56 and have had one cataract. It was operated on painlessly and
    the new lens they inserted is excellent. Individual experiences
    vary, and some see clearly the day after the op, but in my case my
    vision was hazy for about a month afterwards, with a whiteish haze
    over everything and halos around lights. Then... it cleared up.
    Perfectly clear now. 

    However there is one thing you need to know about the Intra-Ocular
    Lens (IOC) they put in your eye to replace your original lens. It's
    more rigid that a natural lens and so does not have the same
    'compensation' between distance and near vision. It's more fixed. If
    you get an IOL set to excellent _distance_ vision, then you will
    always have to wear plus-corrective glasses for bedtime reading,
    sawing gold, filing, reading recipes, checking the temperature
    setting on the oven, etc. 

    So there is nowadays a trend to ask for some residual myopia in the
    IOL. That is, to ask for an IOL that will give you a little bit of
    short-sightedness. With about 1 diopter of short-sightedness you
    will probably be able read in bed, read the phone book, read recipes,
    make jewellery, etc etc, possibly watch the telly without glasses.
    However for distance you'll need to correct the -1.00 to zero so as
    to pass the driving test. 

    To my mind it makes much more sense to have vision that is excellent
    for the majority of your working day and to use one pair of specs
    for driving, movies, concerts, etc, than to have perfect sight for
    distance but always require various pairs of reading glasses lying
    around the house/studio. 

    Some cataract operations will also do a 'snip' and correct
    astigmatism as well. 

    It's an imprecise craft, measuring for IOLs and snipping for
    astigmatism. But most patients come out with better vision than
    before. Regarding residual myopia 80% or thereabouts get what they
    ask for (with some extra correction by contacts or spectacles). The
    rest come out with clear vision but with more tiresome requirements
    for extra correction. 

    For more discussion and info I recommend subscribing to
    http://groups.google.co.nz/group/sci.med.vision

Brian
Auckland NEW ZEALAND
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