OVDs to avoid incomplete caps and prevent capsulorhexis extension in FLACS
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Author Disclosure Block: S.A. Arshinoff: Consultant; Alcon, Rayner, Zeiss, Arctic Dx.
Abstract Body:
Purpose: To develop a technique to prevent incomplete caps during FLACS, which may tear out.
Study Design: The technique was developed based upon the principles of rheology, and its success was observed in subsequent cases.
Methods: After the femto rhexis creation, a highly viscous and cohesive OVD is injected through a small-bore cannula over the center of the casulorhexis, until the rhexis becomes concave. The OVD cannula is then used to progressively depress the perimeter of the rhexis x 360 degrees along its circumference, pulling gently towards the centre, to assure that it is free.
Results: Since adopting this technique, no further incomplete caps have been seen.
Conclusions: The OVD Central Press Technique works because depression of the centre of the rhexis causes it to extend centrally, if at all, and not peripherally