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Tip 126: ACRYSOF® Single-Piece IOL Injection
The following technique can be used to inject ACRYSOF®
Single-Piece lenses, using the MONARCH® II cartridge, through
an unenlarged phaco incision.
Insert the cartridge by using an oscillating motion so
that only the leading bevel of the cartridge tip is slightly within the
anterior chamber (Figure). The tip at the opposite margin of the port
will rest against the distal margin of the incision. Inject the lens in
the usual manner, pausing as the leading haptic enters the eye to be certain
that it does so successfully. This is important, as occasionally it may
engage the stroma and continued attempts to advance the lens will simply
push the cartridge out of the incision.
If this technique is used during topical anesthesia,
it can be helpful to ask the patient to look in the direction of the injector
e.g. if a clear-corneal temporal incision is being employed for the right
eye, the patient would be asked to look to the right. Additionally or
alternatively, depression of the cartridge tip will nearly always result
in maintenance of the cartridge within the incision during injection.
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