Calculation of iris-claw IOL power for correction of late in-the-bag IOL complex dislocation

Huerva, Valentín; Ascaso, Francisco J.; Caral, Isabel; Grzybowski, Andrzej

doi:10.1186/s12886-017-0516-1

Cited by 6 publications

(9 citation statements)

References 43 publications

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“…In an overview of studies addressing IOL calculation in iris‐claw implantation, Huerva et al. (2017) reported that in approximately 80% of the studies involving retropupillary iris‐claw lens, the SRK‐T formula had been used, of which 60% had achieved a spherical equivalent (SE) within ± 1.0 D using different A‐constants (i.e. 116.7–117.5).…”

Section: Postoperative Resultsmentioning

confidence: 99%

“…Because many such surgeries involve aphakic eyes or eyes with dislocated IOLs, newer IOL formulas are infeasible, and in most studies, the SRK-T formula has therefore been used. In an overview of studies addressing IOL calculation in iris-claw implantation, Huerva et al (2017) reported that in approximately 80% of the studies involving retropupillary iris-claw lens, the SRK-T formula had been used, of which 60% had achieved a spherical equivalent (SE) within AE 1.0 D using different A-constants (i.e. 116.7-117.5).…”

Section: Prediction Errormentioning

confidence: 99%

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Implantation of retropupillary iris‐claw lenses: A review on surgical management and outcomes

Drolsum

Kristianslund

2021

Acta Ophthalmologica

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Iris-claw lenses have gained increasing popularity over the last years and are by many surgeons regarded as viable options in eyes with insufficient capsular or zonular support. The iris-claw lens has two haptics with fine fissures for folding (enclavating) the mid-peripheral part of the iris stroma and can either be placed in front of or posterior to the iris. In particular, the retropupillary implantation has been increasingly chosen probably due to having an anatomical position similar to that of the crystalline lens. The present review is based on a literature review and also on the authors' clinical experience with this lens, and it focuses on surgical techniques and outcomes especially related to the characteristics of this lens, having haptics with claws that fixate the lens to the posterior iris. Implanting retropupillary iris-claw lenses has a relatively short learning curve, and there are only few complications reported during surgery. Retropupillary iris-claw lenses have demonstrated generally favourable efficiency and safety. However, the outcomes are probably more influenced by the reason for surgery and eye comorbidity than the lens itself. Albeit seldom reported, the postoperative complications have mostly been related to atrophy of the iris at the site of the haptics, or IOL decentration or disenclavation of one of the haptics. To date, however, there are few randomized clinical trials comparing this lens to other lens alternatives in eyes exhibiting insufficient capsular or zonular support for placing the lens in the ciliary sulcus. In the future, prospective studies with large samples should be performed to gain insights into the long-term safety of retropupillary placed iris-claw lenses, and for comparisons with the various other techniques of lens fixation.

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Section: Postoperative Resultsmentioning

confidence: 99%

Section: Prediction Errormentioning

confidence: 99%

Implantation of retropupillary iris‐claw lenses: A review on surgical management and outcomes

Drolsum

Kristianslund

2021

Acta Ophthalmologica

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“…Interestingly, the refractive results observed in our series support the benefits of performing a tunnelized scleral incision to reduce the induced astigmatism compared with corneal incision, a modification of the original technique advocated in previous reports. [21][22][23] Elevations in IOP were frequent, and half of the study cohort presented an IOP .21 mmHg at some point during follow-up (cumulative probability of 48.1% at 12 months). The clinical impact of these elevations was, however, mild because this was successfully managed with IOP-lowering drops in most cases.…”

Section: Discussionmentioning

confidence: 99%

Retropupillary Iris-Claw Intraocular Lens and Pars Plana Vitrectomy in Aphakia Management

Bernal-Morales¹,

Hernández-Martínez

Navarro-Angulo

et al. 2021

Retina

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To evaluate the outcomes and safety of retropupillary iris-claw intraocular lens implantation and associated pars plana vitrectomy.Methods: Multicenter, national audit of 325 eyes (325 patients). Demographics, surgical details, and complications are described. Visual acuity, intraocular pressure, and central retinal thickness assessed by optical coherence tomography were collected at 1, 3, 6, and 12 months after surgery. Kaplan-Meier curves were created to assess the cumulative probability of postoperative visual acuity and intraocular pressure levels, macular edema development, and corneal decompensation.Results: The cumulative probability of the final visual acuity #0.3 logarithm of the minimum angle of resolution ($20/40 Snellen) was 75.6% at 12-month follow-up. The probability of intraocular pressure .21, $25, and $30 mmHg was 48.1%, 33.1%, and 19.0%, and the probability of intraocular pressure-lowering drops was 50.9% at 12 months. Glaucoma surgery was required in 4.3% of the eyes (14/325). The cumulative probability of macular edema was 20.5% at 12 months and was greater in complicated cataract surgery than in intraocular lens-luxation eyes (26% vs. 16.7%, P = 0.04). Corneal transplantation was required in 2.8% of the eyes (9/325).Conclusion: This study on 325 eyes with aphakia or intraocular lens dislocation managed with the retropupillary iris-claw intraocular lens technique provides clinical outcomes in a real-world scenario, reporting relevant data for patient counseling and preoperative discussions.

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“…63,64 In addition, 4 editorials and 10 reviews mainly or partly discussed late in-the-bag IOL dislocation. 28,[65][66][67][68][69][70][71][72][73][74][75][76][77] A number of articles were excluded because they contained less than 50% or an unknown proportion with the condition, although 1 of these articles reported some results separately for in-the-bag IOL dislocation. 30…”

Section: Resultsmentioning

confidence: 99%

Late in-the-bag intraocular lens dislocation

Kristianslund

Dalby

Drolsum

2021

J Cataract Refract Surg

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This review aimed to evaluate the cumulative incidence, patient characteristics, predisposing conditions, and treatment outcomes for late in-the-bag intraocular lens (IOL) dislocation. Literature searches in PubMed (MEDLINE), Embase, and Cochrane Library Central database identified 1 randomized clinical trial, 1 prospective case series, 2 prospective cohort studies, and 36 retrospective studies of this condition, which showed that the cumulative incidence was 0.5% to 3%, it occurred on average 6 to 12 years after cataract surgery, and mean patient age was 65 to 85 years. Pseudoexfoliation syndrome, myopia, and previous vitreoretinal surgery were the most common predisposing conditions.

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Calculation of iris-claw IOL power for correction of late in-the-bag IOL complex dislocation

Cited by 6 publications

References 43 publications

Implantation of retropupillary iris‐claw lenses: A review on surgical management and outcomes

Implantation of retropupillary iris‐claw lenses: A review on surgical management and outcomes

Retropupillary Iris-Claw Intraocular Lens and Pars Plana Vitrectomy in Aphakia Management

Late in-the-bag intraocular lens dislocation

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