Analysis of a Parameter to Center IOL After Circular Capsulotomy Centered on Cornea or Dilating Pupil
Narrative Responses:
Purpose
To compare parameters of continuous curvilinear capsulorrhexis for centering of intraocular lens(IOL).
Methods
This is a retrospective study of 196 consecutive cases of SMI assisted cataract surgery procedures performed between November, 2012 and February, 2013 in Seoul Saint Mary’s hospital. Snapping shots were gained to compare center of CCC with center of dilating pupil and cornea. Post-operative shots with dilated pupil within one-week and two-month visits were reviewed. Between-group differences parameters and predictors of IOL decentration were determined with Pearson correlation.
Results
One week after an operation, in the group with a large difference between center of cornea and dilating pupil, the shorter the distance between center of cornea and CCC was, the closer the distance between center of IOL and CCC was. (P=0.05) However, the distance between center of dilating pupil and CCC was not significantly correlated with the distance between center of CCC and IOL(P=0.834) At 2 months after an operation, the result was same as above.
Conclusion
If CCC was centered on cornea during operation, postoperative IOL centration was attained in the short term and long term.