Comparative study between preoperative power calculations and outcomes using intraoperative aberrometry
Session Details
Session Title: Cataract Surgery Equipment/Instrumentation/Surgical Devices II
Session Date/Time: Monday 12/09/2016 | 17:00-18:30
Paper Time: 17:06
Venue: Hall C1
First Author: : M.Breen USA
Co Author(s): : R. Cionni
Abstract Details
Purpose:
To evaluate post-operative (21-35 day) mean absolute value of prediction error (MAVPE) and mean absolute error (MAE) distribution after surgical procedures either using intraoperative aberrometry to guide IOL power selection or the calculated pre-operative power calculation.
Setting:
Prospective, multicenter, masked (to treatment and IOL type) evaluator study.
Methods:
Subjects (n=162) were analyzed for this prospective, multicenter, masked (to treatment and IOL type) evaluator study. Data related to pre-operative IOL power and predicted postoperative spherical equivalent and post-operative mean absolute value of the prediction error were collected and analyzed.
Results:
MAVPE Pre-op power was 0.35D ± 0.37 and MAVPE using intraoperative aberrometry was 0.29D ± 0.26 (p=0.04). Absolute pre-op prediction error distribution versus the distribution of power error following procedures using intraoperative aberrometry was as follows: ≤0.25D, 46% v 57%; ≤0.50D, 76% v 85%; ≤0.75D, 90% v 96%; ≤1.00D, 97% v 97%. The difference at ≤ 0.50 D was statistically significant (p=0.035)
Conclusions:
The use of intraoperative aberrometry reduced MAVPE power and the distribution of absolute power errors also shifted to lower errors compared to pre-operative power predictions.
Financial Disclosure:
... is employed by a for-profit company with an interest in the subject of the presentation, ... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, ... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented
