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00045_Field_45.txt
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1997-10-28
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575b
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LENS REPLACEMENT SCHEDULES
DISPOSABLE LENSES
Due to the problems with extended
wear of hydrogel lenses, which were
thought to be due to dirty lenses and
in some cases are, the concept of
disposable lenses was introduced. The
strict definition of disposable lenses
is that the lenses are worn once and
thrown away.
The first disposable lenses were
intented to be worn for one week of
extended wear and thrown away. A
new lens was put on the next day and
it was worn for a week. No solutions or
cleaning were required.