Intraocular lens tilt and decentration after cataract surgery with and without primary posterior continuous curvilinear capsulorhexis

Liu, Xiaobao; Yu, Ming; Huang, Yue; Li, Qiong; Wu, Wenjie

doi:10.1097/j.jcrs.0000000000001152

Cited by 1 publication

(5 citation statements)

References 29 publications

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“…The determination of the sample size was carried out with a significance level (α) of 0.01 and a power of 90%. Drawing from prior studies and our own research data, the average IOL decentration level observed was approximately 0.3 mm, which was within the acceptable range [4,5,7]. Based on previous research, clinically significant IOL decentration has been defined as decentration exceeding 0.4 mm [23,24].…”

Section: Sample Sizementioning

confidence: 79%

“…Decentration of the IOL can impair optical outcomes, such as higher-order aberrations (mainly coma) and visual quality metrics (e.g., Modulation Transfer Function and Point Spread Function) [4][5][6][7]. Therefore, accurate measurement is essential to avoid overestimating or underestimating the impact of IOL decentration on optical outcomes, especially for sophisticated optical IOLs [4][5][6].…”

Section: Plos Onementioning

confidence: 99%

“…However, it is important to note that the visual axis represents a theoretical mathematical construct that lacks corresponding anatomical landmarks, thereby posing challenges in achieving clinical correlation with real eyes [25,26]. Conversely, the CTA and PA axes, which possess well-defined anatomical characteristics and can be detected by commonly employed devices, including the Pentacam and the OPD-Scan III, have emerged as more frequently utilized parameters in clinical measurement practice [7,10,12,13,18]. Notably, to the best of our knowledge, no prior studies have specifically examined the repeatability of Pentacam-based IOL decentration measurements using CTA as a reference, nor the agreement between the Pentacam and the OPD-Scan III regarding IOL decentration measurements.…”

Section: Plos Onementioning

confidence: 99%

“…Several techniques are currently employed for the measurement of IOL decentration [4,5,[7][8][9]. One of these is the Scheimpflug method, which has garnered considerable prominence, featuring in nearly 30% of published studies focused on IOL decentration measurements [4,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…A newer device that has gained widespread use in recent years is the OPD-Scan III, which can detect IOL decentration and provide supplementary optical quality data in a single scan. This feature streamlines the measurement process and improves the reliability and accessibility of subsequent optical quality analysis [5,7,[13][14][15]. Accordingly, the OPD-Scan III has become increasingly popular in the realm of IOL decentration measurements and optical quality analysis.…”

Section: Introductionmentioning

confidence: 99%

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Repeatability of Pentacam-derived intraocular lens decentration measurements and the level of agreement with OPD-Scan III: A prospective observational case series

Liu,

Wu,

Huang

et al. 2024

PLoS ONE

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Purpose This study aimed to assess the repeatability of intraocular lens (IOL) decentration measurements obtained through Pentacam, based on corneal topographic axis (CTA) and pupillary axis (PA), and to evaluate the level of agreement between Pentacam and OPD-Scan III devices in measuring IOL decentration. Methods In this prospective observational case series, three measurements were performed with Pentacam to evaluate the repeatability of the measurements. The analysis included the calculation of the mean and standard deviations (SD), conducting a repeated measures analysis of variance (rANOVA), and determining an intraclass correlation coefficient (ICC) to assess the repeatability of the measurements. Moreover, Bland-Altman analysis was employed to assess the agreement between Pentacam and OPD-Scan III devices in measuring IOL decentration. IOL decentration measurements were obtained with respect to both CTA and PA. Results A total of 40 eyes from 40 patients were analyzed. The rANOVA revealed no significant difference among three consecutive measurements of IOL decentration obtained with Pentacam. The mean SD of all parameters ranged from 0.04 mm to 0.07 mm. With CTA as the reference axis, the ICC values for Pentacam measurements of IOL decentration were 0.82 mm for the X-axis, 0.76 mm for the Y-axis, and 0.82 mm for spatial distance. When using PA as the reference axis, the corresponding ICC values were 0.87, 0.89, and 0.77, respectively. The 95% limits of agreement for all IOL decentration measurements were wide when comparing Pentacam and OPD-Scan III. Conclusions Pentacam demonstrated high repeatability in measuring IOL decentration with respect to both CTA and PA. However, due to poor agreement between Pentacam and OPD-Scan III measurements, caution should be exercised when using data interchangeably between the two devices.

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