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Advanced
Techniques
Presbyopia Presbyopes may be the single largest group of patients who have not been receiving the full benefits of contact lens wear. This may be at least partially attributed to a limited number of multifocal designs traditionally available for soft lenses. Also, positioning the reading addition in the proper position in relation to the pupil for both distance and near vision has been a source of difficulty. Much research has been done in an effort to improve soft lens multifocal designs. What follows are some of the methods commonly used for providing the presbyope with contact lenses. Many of these approaches are used for the fitting of both rigid and soft lenses.
I Provide reading glasses to be worn over the contact lenses.
II Provide two pair of contact lenses, one pair for reading only
and one pair for distance. III
Monovision is a popular and surprisingly successful alternative
for the presbyope wishing to wear contact lenses. It involves placing
a lens with the distance vision correction in the dominant eye and a
lens with the near vision correction in the other eye. Most patients
will adjust to them within a relatively short period of time even though
there will always be one eye with blurred vision. Occasionally a bifocal
lens is placed in the nondominant eye to aid with distance vision. It
is generally recommended to trial frame the patient first with the distance
prescription in one eye and the near prescription in the other thereby
providing the patient with at least some idea of what to expect. The
popularity of this fitting method can largely be attributed to its relative
simplicity and low cost compared to the use of actual bifocal contact
lenses.
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