Predicting effective lens position with biometric measurements using 3D-OCT
Session Details
Session Title: Cataract Surgery Equipment/Instrumentation/Surgical Devices II
Session Date/Time: Monday 12/09/2016 | 17:00-18:30
Paper Time: 18:04
Venue: Hall C1
First Author: : C.Joo SOUTH KOREA
Co Author(s): : M. Kang W. Whang S. Chung
Abstract Details
Purpose:
To investigate ideal parameters for predicting postoperative intraocular lens (IOL) position in femtosecond laser-assisted cataract surgery (FLACS) using 3 dimensional optical coherence tomography (3D-OCT)
Setting:
86 eyes that underwent FLACS and implantation of a one-piece intraocular lens were examined to seek a new preoperative biometric parameter to improve our ability to predict the IOL position defined as the postoperative anterior chamber depth (post-ACD).
The Catholic University of Korea, Seoul St. Mary's hospital
Methods:
Preoperative axial length was measured by the partial coherence interferometry. (IOLMaster) AD(aqueous depth), ACD(anterior chamber depth), LT(lens thickness), and LMP(lens meridian parameter) were measured by Catalys 3 dimensional optical coherence tomography (3D OCT). After phacoemulsification, 1-piece hydrophobic acryl IOL (Tennis ZCB00, AMO) was implanted in the bag. The post-ACD:ELP (effective lens position) was measured by Catalys 3D-OCT at 6 months postoperatively and was analyzed by Pearson correlation tests and multiple linear regression test.
Results:
The mean values of AD, ACD, LMP and LT were 2.67 ± 0.42, 3.28 ± 0.40 mm, 4.11 ± 0.34 mm and 4.26 ± 0.46 mm,respectively. The ELP was 4.59 ± 0.42 mm postoperatively. The LMP was highly correlated with ELP by Pearson tests. (r=0.675, p<0.01) Multiple regression analysis also demonstrated that LMP combined with AL showed the highest consistency with ELP.
Conclusions:
The LMP combined with AL was the best parameters for the prediction of ELP than any other measurements. The LMP is effective parameter for IOL power calculation in FLACS.
Financial Disclosure:
NONE
