Agreement of ocular biometric measurements in young healthy eyes between IOLMaster 700 and OA-2000

Liao, Xuan; Peng, Yue; Liu, Bo; Tan, Qing‐Qing; Lan, Chang-Jun

doi:10.1038/s41598-020-59919-y

Cited by 39 publications

(50 citation statements)

References 31 publications

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“…The discrepancy of the three devices in total keratometry could be caused by the different algorism for calculating total keratometry in each device [5,8,19]. IOLMaster 700 obtains anterior keratometry with 18 reflected spots in hexagonal patterns at three zones (1.5 mm, 2.5 mm, and 3.5 mm) and posterior keratometry with SS-OCT tomography [16,20]. Meanwhile, ANTERION and CASIA2 calculate anterior and total keratometry only with SS-OCT images (ANTE RION: 65 B-scans with 256 A-scans each; CASIA2: 16 B-scans with 800 A-scans each) [8,21].…”

Section: Discussionmentioning

confidence: 99%

Comparison of ocular biometric measurements in patients with cataract using three swept-source optical coherence tomography devices

Choi

et al. 2021

BMC Ophthalmol

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Background Precise measurement of ocular biometry is critical for determining intraocular lens power. Newly developed swept-source optical coherence tomography (SS-OCT) - based ocular biometric devices, ANTERION and CASIA2 provide ocular biometric measurements as IOLMaster 700. This study aimed to assess agreement between three devices. Methods This retrospective comparative study includes patients with cataract who underwent ocular biometric measurements with three devices, ANTERION, CASIA2, and IOLMaster 700, at Seoul National University Hospital, in April 2020. Anterior keratometry, total keratometry, central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT), and axial length (AL) were the main parameters for the comparison. To assess the agreement between the devices, intraclass coefficient (ICC) and Bland-Altman analysis with 95% limits of agreement (LoA) were used. Results A total of 47 eyes of 29 patients were measured with three devices. Average anterior keratometry showed excellent agreement (ICC ≥ 0.989), and the mean difference was less than 0.1 D. However, the ICC of the total average keratometry ranged from 0.808 to 0.952, and the difference was more than 0.43 D. The AL measured by ANTERION and IOLMaster 700 showed excellent agreement (ICC = 0.999), and the mean difference was 0.005 mm. The ANTERION and IOLMaster 700 did not obtain AL in six (12.8%) and three (6.4%) cases, respectively (P = 0.001 by Fisher’s exact test). The CCT, ACD, and LT also showed excellent agreement (ICC > 0.9). Conclusions The new SS-OCT-based devices, ANTERION, and CASIA2 showed a good agreement with IOLMaster 700 in measuring ocular biometry except for the total keratometry. The AL of ANTERION and IOLMaster 700 showed excellent agreement.

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Section: Discussionmentioning

confidence: 99%

Comparison of ocular biometric measurements in patients with cataract using three swept-source optical coherence tomography devices

Choi

et al. 2021

BMC Ophthalmol

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“…It has been published several studies analyzing the agreement among instruments based on these techniques to measure WTW. These studies have analyzed the interchangeability of OCT devices and Scheimpflug cameras [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. New devices in the market and the possibility to use them to measure this distance make interesting their analysis to ascertain if there are differences between them.…”

Section: Introductionmentioning

confidence: 99%

Agreement of white-to-white measurements with swept-source OCT, Scheimpflug and color LED devices

et al. 2020

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Purpose To assess the interchangeability of different devices for measuring white-to-white (WTW) distance. Methods WTW distance was measured in 53 eyes of 53 patients using Anterion swept-source optical coherence topographer (SS-OCT), IOLMaster 700 SS-OCT, Pentacam HR Scheimpflug and Cassini color LED. Statistical analysis was done by means of the Friedman test and the post hoc Tukey test. The Bland-Altman analysis was applied to carry out pairwise comparisons with the average difference, 95% confidence interval of the average difference and limits of agreement 95% (LoA). Results WTW values obtained by the Anterion, IOLMaster 700, Pentacam HR and Cassini were: 11.84 ± 0.41 mm, 11.96 ± 0.41 mm, 11.68 ± 0.38 mm and 12.65 ± 0.52 mm, respectively. Statistically significant differences were found in all pairwise comparison (p \ 0.001). The lowest mean difference was found between the Anterion and IOLMaster 700 (-0.11 mm) and the highest between the Pentacam HR and Cassini (-0.96 mm). The widest LoA ranges were those that compared any device with the Cassini. LoA ranges when the other three devices were compared among them were similar: Anterion versus IOLMaster 700, Anterion versus Pentacam HR and IOLMaster versus Pentacam HR (about 0.2 mm). Conclusions Our results show that there were statistically significant differences in WTW measurement among the four devices, but under a clinical point of view, we believe that Anterion and IOLMaster 700 may be considered interchangeable and so Anterion and Pentacam HR, however, IOLMaster 700 and Pentacam HR may not and neither is Cassini with any of the other three devices.

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“…Savini et al reported that the mean value of the SS-OCT biometer was higher than that of the PCI 13 . Liao et al also showed that the mean LT measured using SS-OCT was higher than that measured using PCI in the Bland–Altman analysis 14 . These results are consistent with our findings, which demonstrate that 4.35 and 4.40 mm in the LT inspection group are IOL master 700 (PCI) and CASIA2 (SS-OCT), respectively.…”

Section: Discussionmentioning

confidence: 94%

Inspection of the lens thickness with preoperative biometric measurements prevents an erroneous interpretation of posterior capsule during FLACS

Kurosawa

Horiguchi

Shiba

et al. 2021

Sci Rep

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Optical opacity reduces quality of biometry images, making it potentially difficult to find the correct location for irradiation during femtosecond laser-assisted cataract surgery (FLACS). After experiencing a case of posterior capsule (PC) rupture because of optical opacity, we started lens thickness (LT) inspection, which indicates comparison of between intra- and pre-operatively measured LT. We retrospectively investigated the effectiveness of the LT inspection. One observer reviewed all FLACS treatment summaries for 3 years by CATALYS in the Jikei University Hospital, Tokyo. Based on the lines defining the PC on intraoperative OCT images, all cases were classified into three groups: undescribed, appropriate and inappropriate PC. Among the 1070 cases, 1047 cases had appropriate PC. In 19 cases, the PC line was undescribed because of dense cataract. Among 474 cases with no inspection, 4 cases had an inappropriate PC. Whereas, in 596 cases with the LT inspection, there was no case of an inappropriate PC. LT inspection significantly reduced the cases with inappropriate PC. The safety margins normally work to prevent severe complications. However, rare outlier cases had a high risk of severe complications. We propose LT inspection could be the most practical and convenient way for safety surgery.

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Agreement of ocular biometric measurements in young healthy eyes between IOLMaster 700 and OA-2000

Cited by 39 publications

References 31 publications

Comparison of ocular biometric measurements in patients with cataract using three swept-source optical coherence tomography devices

Comparison of ocular biometric measurements in patients with cataract using three swept-source optical coherence tomography devices

Agreement of white-to-white measurements with swept-source OCT, Scheimpflug and color LED devices

Inspection of the lens thickness with preoperative biometric measurements prevents an erroneous interpretation of posterior capsule during FLACS

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