Accuracy of IOL Power Calculation Formulas for Quadrifocal Acrysof IQ …
본문
for Quadrifocal Acrysof IQ PanOptix TFNT Implantation
in Patients With Previous Corneal Refractive Surgery
:Comparison of SS-OCT–Based Biometers
도수 계산 공식의 정확도 : SS-OCT 기반 생체측정기 비교
시각적으로 특별한 의미가 있는 백내장 환자에게
4중 초점 인공수정체 Acrysof IQ Panoptix TFNT IOL을 삽입하기 위해
광간섭단층촬영장비(Swept-Source OCT)를 사용하여
두 생체 측정기의 인공 수정체(IOL) 도수 계산 공식의 정확도를 평가한 연구로,
50명의 환자 데이터를 기반으로 평가한 자료에 따르면,
이전에 각막굴절 수술을 받은 환자에서
TFNT 인공수정체 삽입술의 시력 및 굴절 예후는 양호하였으며
IOLMaster 700의 Barrett True-K 공식은
TFNT 인공수정체 삽입술에서 최고의 굴절 결과를 보여주었습니다.
PURPOSE:
To evaluate the accuracy of intraocular lens (IOL) power calculation formulas
from two biometers using swept-source optical coherence tomography
for quadrifocal Acrysof IQ Panoptix TFNT IOL (Alcon Laboratories,
Inc) implantation in patients with visually significant cataract with previous corneal refractive surgery.
METHODS:
This retrospective study comprised 50 eyes from 50 patients
with a history of corneal refractive surgery and TFNT IOL implantation.
Candidate formulas were Shammas-PL and Barrett True-K in the Argos (Movu, Inc),
Barret True-K and Haigis-L in the IOLMaster 700 (Carl Zeiss Meditec AG),
and Haigis using the total keratometry (TK) mode in the IOLMaster 700.
The main outcome measure was the mean absolute error (MAE) detected at postoperative 6 months.
The refractive accuracy was also evaluated as number and percentage of eyes within ±0.25, ±0.50, and ±0.75 diopters (D) of the prediction error.
RESULTS:
The uncorrected distance and near visual acuity were 0.32 ± 0.34 and 0.46 ± 0.20 logMAR at baseline,
and significantly improved to 0.04 ± 0.07 and 0.03 ± 0.06 logMAR at postoperative 6 months (P < .001 for all analysis)
with a mean spherical equivalent of −0.20 ± 0.39 D. The MAE was smallest for the Barrett True-K formula in the IOLMaster 700 (0.36 ± 0.26 D)
and largest for the Shammas-PL formula in the Argos (0.59 ± 0.37 D). The Barrett True-K formula from both devices showed that 90% of eyes were within ±0.75 D of MAE.
CONCLUSIONS:
The visual and refractive outcomes of TFNT IOL implantation in patients
with previous corneal refractive surgery were favorable. The Barrett True-K formula
in the IOLMaster 700 showed the best refractive outcome for TFNT IOL implantation.
- 이전글Factors affecting prediction error after cataract surgery with implantation of various multifocal IOLs in patients with previous refractive laser surgery 22.03.08
- 다음글Accuracy of Total Corneal Power Calculation for Multifocal Toric Intraocular Lens Implantation: Swept-Source OCT-Based Biometer vs Scheimpflug Tomographer 21.10.01
