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Why eye surgeons wait until a
cataract is "ripe" before operating: even in these days eye surgery is
not without risk, a certain percentage of the surgeries will "fail" and
lead to complications or complete loss of sight. The percentage must
surely vary with the competence of the surgeon, but it is a safe bet
that not one single surgeon has a 100% success rate. Therefore it is
felt that it is best to wait until the sight in the cataract eye is
essentially nil before performing surgery. I know for a fact that this
was the reason for waiting 35 years ago when I worked for eye doctors,
and though there are now artificial lenses and a lot of improvements in
the surgery, it still is not without risk. sol Marvin Hacker wrote:
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