Nd: YAG Laser Posterior Capsulotomy Rates in Myopic Eyes after Implantation of Capsular Tension Ring

Keleş, Sadullah; Kartal, Baki; Apil, Aytekin; Ondas, Osman; Kozan, Betul Dertsiz; Topdagi, Elif; Ekinci, Metin; Ceylan, Erdinç; Baykal, Orhan

doi:10.12659/msm.890767

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Among them, 26 articles were excluded for the following reasons: 7 studies were in vitro, 3 were of incomplete text, 13 were not controlled and 3 were inserted in sulcus. Finally, 8 items [24][25][26][27][28][29][30][31] met the inclusion criteria and were included for quantitative analysis. Selected studies involved in total 379 cases and 333 controls.…”

Section: Resultsmentioning

confidence: 99%

“…Nd:YAG laser capsulotomy rate: The meta-analysis included a total of 7 studies involving 357 cases and 311 controls [ 24 – 31 ]. No significant heterogeneity was discovered in the combined analysis (I 2 = 42.1%), therefore a fixed-effect model was chosen to reduce heterogeneity.…”

Section: Resultsmentioning

confidence: 99%

“…Nd:YAG laser capsulotomy rate: The meta-analysis included a total of 7 studies involving 357 cases and 311 controls [24][25][26][27][28][29][30][31]. No significant heterogeneity was discovered in the combined…”

Section: Discussionmentioning

confidence: 99%

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The effect of capsule tension ring on posterior capsule opacification: A meta-analysis

et al. 2021

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Background Posterior capsule opacification is one of the most common complications after cataract surgery. Studies have suggested that the introduction of a capsule tension ring might play a critical role in the prevention of capsule opacification, yet quantitative evidence is still lacking. This work consists of a meta-analysis on available data in order to explore the influence of a capsule tension ring on posterior capsule opacification. Methods A comprehensive review of the literature on capsule tension ring and posterior capsule opacification was carried out using the Embase, Pubmed, Web of Science, and Cochrane electronic databases. The selected studies included randomized controlled trials, retrospective studies and prospective studies published before June 2020. The studies of interest were selected by two reviewers independently from the included studies. Odds ratios (ORs) and standardized mean differences (SMD) were used in order to assess the association. A fixed-effects model or a random-effects model was applied to combine data according to heterogeneities. Sensitivity analysis was used to assess the heterogeneity of the studies. Publication bias was estimated using the Egger test. Statistical analysis was performed using the stata15.1 software. Results The meta-analysis included in total 8 studies involving 379 cases and 333 controls. There was a statistically significant difference of Nd:YAG laser capsulotomy rate (OR=0.241, 95% CI: 0.145, 0.400 I2=42.1%) between the capsule tension ring group and the control group, indicating that the tension ring reduced the Nd:YAG laser capsulotomy rate. Further studies with continuous data also revealed that the use of capsule tension ring was associated with a lower posterior capsule opacification score (SMD = -1.402, 95% CI: -2.448, -0.355 I2=95.0%). The sensitivity analysis suggested that the result of the re-combined analysis did not change notably, indicating that the result was reliable and stable. Both pooled analysis showed no evidence of publication bias. Conclusion The findings of this meta-analysis confirmed that capsule tension ring might reduce capsule opacification. Further studies should be made to validate the result.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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The effect of capsule tension ring on posterior capsule opacification: A meta-analysis

et al. 2021

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Posterior capsular opacification in highly myopic eyes with an endocapsular equator ring

Hara

Hashimoto

et al. 2016

Jpn J Ophthalmol

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Resistance to Compression of the Capsular Tension Ring over Time

Aragon¹,

Villada²,

Ruiz–Moreno³

2017

AOVS

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Purpose: To evaluate the resistance to compression of commercially available capsular tension rings (CTRs) when submitted "in vitro" to a constant pressure over a period of time.Setting: Research Unit. CHU Albacete. University of Castilla La Mancha. Spain.Method: Four samples of 3 different CTR manufacturers were evaluated for resistance to compression over time while being exposed to a constant tension. The 13 millimetres CTRs were placed in a round rigid container with an 11 millimetres diameter and submerged in BSS at body temperature (37 degrees Celsius). CTRs were divided into two groups. Two samples of each model were introduced in the containers and removed and evaluated at 1 month, while the other two samples of each model were introduced in the containers and removed and evaluated at three months. Size and shape of the CTRs were measured at baseline, at 1 month and 3 months. Every measurement was repeated 3 times by two different observers. Results:The mean decrease in CTRs diameter of the 1 month compression group was 1, 5 millimetres. The mean decrease in CTRs diameter of the 3 month compression group was 1, 63 millimetres. The differences in diameter between baseline and 1 month, as well as baseline and 3 months were statistically significant. There was no statistical significance when comparing the final size between the 1 month and 3 months groups. Conclusion:All the commercially available CTRs studied have shown a decrease in diameter when exposed to a constant compression at body temperature. This could explain some of the published reports of capsular bag shrinkage or even dislocation of the entire IOL-CTR complex despite the implantation of a CTR.

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Nd: YAG Laser Posterior Capsulotomy Rates in Myopic Eyes after Implantation of Capsular Tension Ring

Cited by 4 publications

References 23 publications

The effect of capsule tension ring on posterior capsule opacification: A meta-analysis

The effect of capsule tension ring on posterior capsule opacification: A meta-analysis

Posterior capsular opacification in highly myopic eyes with an endocapsular equator ring

Resistance to Compression of the Capsular Tension Ring over Time

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