October 2018

RESIDENTS

EyeWorld journal club
A large retrospective database analysis comparing outcomes of intraoperative aberrometry with conventional preoperative planning


by Robert Cionni, MD, Ramon Dimalanta, PhD, Michael Breen, OD,
Cody Hamilton, PhD

J Cataract Refract Surg. 2018;44(10):1230–1235.

Purpose: Evaluate differences between the absolute prediction error using an intraoperative aberrometry (IA) device for intraocular lens power determination versus the error that would have resulted if the surgeon preoperative plan had been followed.
Setting: Multiple centers in the United States.
Design: Retrospective analysis of data collected using an IA device.
Methods: The database information was limited according to predetermined inclusion/exclusion criteria. Primary endpoints included the difference between mean and median absolute prediction error with IA use versus preoperative calculation, and comparing the percentage of cases where the prediction error was <0.5 diopters (D).
Results: A total of 32,189 eyes were analyzed. The IA mean absolute prediction error (MAPE) was lower than the preoperative calculation MAPE, 0.30 D (standard deviation [SD], 0.26) versus 0.36 D (SD, 0.32) (P<.0001). The aberrometry absolute median PE was lower than the preoperative calculation absolute median PE, 0.24 D vs. 0.29 D (P<.0001). There was a significantly greater percentage of eyes with an aberrometry APE <0.5 D than eyes with a preoperative calculation APE <0.5 D (81.9% [26,357/32,189] vs. 75.9% [24,437/32,189], P<.0001). In addition, in those cases where power of the lens implanted was different than the preoperatively planned lens power, significantly more eyes had an aberrometry APE <0.5 D (81.3% [10,385/12,779] vs. 68.8% [8794/12,779], P<.0001).
Conclusions: In a database of more than 30,000 eyes, calculations incorporating IA outperformed preoperative calculations. The difference was more pronounced in those cases where the preoperatively planned lens power was different than the power of the lens implanted.

A large retrospective database analysis comparing outcomes of intraoperative aberrometry with conventional preoperative planning A large retrospective database analysis comparing outcomes of intraoperative aberrometry with conventional
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2018-10-08T14:37:50Z
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