Microincision cataract surgery with implantation of a bitoric intraocular lens using an enhanced program for intraocular lens power calculation

Lesieur, Gilles

doi:10.1177/1120672119877767

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…For postoperative target refraction, 6 eyes were targeted for myopia between −2.0D and −3.0D, and 50 eyes were aimed to emmetropia. The spherical equivalent (SE) and the cylinder power of IOL were determined using Z CALC 2.0 (Carl Zeiss Meditec AG) based on the TK mode ( 13 ), in combination with TK, anterior chamber depth and axial length of the IOLMaster 700. It was assumed that the SIA is 0.3D@120° for all cases according to our previous study.…”

Section: Methodsmentioning

confidence: 99%

Total keratometry for toric intraocular lens calculation: comparison from two swept-source optical coherence tomography biometers

Chai,

Ma,

Wang

et al. 2024

Front. Med.

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PurposeTo compare the astigmatism prediction accuracy of total keratometry (TK) from the IOLMaster 700 and total corneal power (TCP) from Anterion based on swept-source optical coherence tomography (SS-OCT) technology in toric intraocular lens (toric IOL) calculation.DesignA retrospective observational study.MethodsTotal corneal astigmatism (TCA) were obtained using IOLMaster 700 and Anterion. Z CALC 2.0 was used to calculate the expected postoperative refractive astigmatism in conjunction with TCA. Prediction errors (PE) in refractive outcomes was analyzed 1 month postoperatively using the vector analysis by the Holladay method, including the mean vector PE magnitude, percentage of cases with vector PE in certain intervals, and the centroid PE.ResultsA total of 56 eyes from 56 patients were enrolled in the study with an insertion of an AT TORBI 709 toric IOL. The difference in mean vector PE of postoperative refractive astigmatism between TK and TCP was not statistically significant (0.48D versus 0.46D, P = 0.281). TK and TCP yielded 27.3 and 40.0% of eyes with vector PE ≤ 0.25D, and 58.2 and 63.6% with vector PE ≤ 0.5D (both P > 0.05), respectively. TK and TCP resulted in similar ATR centroid PE of 0.10D@35° ± 0.60D and 0.15D@22° ± 0.57D, respectively, and there were no significant differences between x-PE component and y-PE component.ConclusionIOLMaster 700 and Anterion provided comparable astigmatic predictability in toric IOL implantation using total keratometry and Z CALC 2.0.

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Section: Methodsmentioning

confidence: 99%

Total keratometry for toric intraocular lens calculation: comparison from two swept-source optical coherence tomography biometers

Chai,

Ma,

Wang

et al. 2024

Front. Med.

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“…However, the contralateral clear keratotomy increases the difficulty and risks of the operation, and ultimately leads to the occurrence of intraoperative complications. Moreover, this surgery can also lead to poor long-term vision prediction and vision loss (32)(33)(34). Toric IOL implantation does not require invasive operations such as contralateral clear keratotomy, and has good safety and effectiveness.…”

Section: Figurementioning

confidence: 99%

A systematic review and meta-analysis on intraocular lens implantation with different performances for the treatment of cataract

Chi¹,

Yang²,

Chen³

2022

Ann Palliat Med

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Background: Cataract is one of the common eye diseases. At present, Phacoemulsification combined with traditional intraocular lens (IOL) implantation can achieve satisfactory rejuvenation effects. However, the correction of corneal astigmatism is limited, while Toric IOL implantation can provide good astigmatism correction treatment. Methods:We retrieved randomized controlled trials (RCTs) on the treatment of cataracts published in the PubMed, EBSCO, MEDLINE, EMBASE, Science Direct, Cochrane Library, China National Knowledge Infrastructure (CNKI), Wanfang, and Weipu databases. Professional journals were searched manually to avoid omissions. The research subject search terms included cataract, astigmatism, IOL, and intraocular lens.The observation indicators search terms included uncorrected distance visual acuity (UDVA), best-corrected distance visual acuity (BDVA), residual corneal astigmatism, and cataract cure rate.Results: A total of 12 articles were included. The articles were tested for heterogeneity of UDVA measured using the Logarithm of Mininal Angle Resolution (LogMAR) visual acuity chart, and the results showed that Chi-squared test (Chi 2 ) =75.21, degree of freedom (df) =11, and I 2 =85%>50%, so the random effects model (REM) was adopted for analysis. The results indicated that the differences between the Toric and Non-Toric IOL groups statistically significant, and the Toric IOL group had a significant therapeutic effect [Z =2.18, mean difference (MD) =−0.05, 95% confidential interval (CI): −0.09, −0.00, P=0.03]. The fixed effects model (FEM) was adopted to analyze the determination of BDVA by LogMAR visual acuity chart in 6 articles. The results suggested that the difference between the Toric IOL and non-Toric IOL groups was not statistically significant (Z =0.29, MD =−0.00, 95% CI: −0.02, 0.01, P=0.77). Heterogeneity analysis was performed on three articles in terms of residual corneal astigmatism, which showed that Chi 2 =75.55, df =3, I 2 =96%>50%, and P<0.00001. The REM analysis results revealed that the difference between the two groups was not statistically significant, and the Toric IOL group had low residual corneal astigmatism (Z =1.35, MD =−0.34, 95% CI: −0.83, 0.15, P=0.18).Discussion: The meta-analysis results confirmed that Toric IOL implantation showed obvious advantages in improving UDVA and corneal residual astigmatism in cataract patients.

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“…Moreover, this lens has been assessed in vitro 23 and used in keratoconic eyes with cataracts, 24–26 in combined vitrectomy, 27 can be repositioned after misalignment 28 or using a specific nomogram. 29 The different studies, with a variety of samples, that have reported clinical data in standard cataract surgery have shown good visual, refractive and rotational stability outcomes in the short- (1 month), 17–19 medium- (3 7 , 9–11 , 13 , 15 , 16 , 20–22 and 6 months 6 , 8 ) and long-term follow-up (12 months 14 ) for a general population, and specifically for myopic eyes. 8 , 16 However, to the best of our knowledge, up to March 2024 no clinical studies have been carried out to analyze this lens when implanted in hyperopic eyes.…”

Section: Introductionmentioning

confidence: 99%

Clinical Results of a Monofocal Aspheric Bitoric Intraocular Lens with Plate Haptics in Hyperopic Eyes

Tañá-Rivero,

Muñoz-Tomás,

Orts-Vila

et al. 2024

OPTH

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Microincision cataract surgery with implantation of a bitoric intraocular lens using an enhanced program for intraocular lens power calculation

Cited by 5 publications

References 22 publications

Total keratometry for toric intraocular lens calculation: comparison from two swept-source optical coherence tomography biometers

Total keratometry for toric intraocular lens calculation: comparison from two swept-source optical coherence tomography biometers

A systematic review and meta-analysis on intraocular lens implantation with different performances for the treatment of cataract

Clinical Results of a Monofocal Aspheric Bitoric Intraocular Lens with Plate Haptics in Hyperopic Eyes

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