Long-term Changes in Posterior Chamber Phakic Intraocular Collamer Lens Vaulting in Myopic Patients

Schmidinger, Gerald; Lackner, Birgit; Pieh, Stefan; Skorpik, Christian

doi:10.1016/j.ophtha.2009.12.013

Cited by 149 publications

(120 citation statements)

References 25 publications

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“…Several causes may be involved, including aqueous humour circulation [5], pIOL-crystalline lens contact [13] [14], low vaulting between the ICL and the crystalline lens [15] [16] [17], decreased anterior chamber depth with age [18], myopia [19], and surgical trauma [20]. After improving aqueous humour circulation in the Hole-ICL, Fujisawa [5] reported that no cataract formed when the Hole-ICL was used in porcine eyes.…”

Section: Discussionmentioning

confidence: 99%

Modulation transfer function of intraocular collamer lens with a central artificial hole

Uozato

Shimizu

Kawamorita

et al. 2011

Graefes Arch Clin Exp Ophthalmol

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Section: Discussionmentioning

confidence: 99%

Modulation transfer function of intraocular collamer lens with a central artificial hole

Uozato

Shimizu

Kawamorita

et al. 2011

Graefes Arch Clin Exp Ophthalmol

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“…14,15,17,19,20,33,35,38 A possible factor accounting for this might be the protective effect of the rotating design of the pIOL, avoiding the continuous contact between the pIOL and any particular area of the anterior surface of the crystalline lens. Stabilization of the PRL on the cilliary sulcus should be avoided to protect the crystalline lens from the inflammatory aggression induced when interaction with this structure occurs.…”

Section: Complicationsmentioning

confidence: 99%

“…16 There are a number of studies evaluating the outcomes obtained with the different models of ICL, and therefore there is a complete characterization of the refractive outcomes and complications resulting from the implantation of this pIOL. [17][18][19][20][21][22][23][24] The current review will focus on the other available posterior chamber pIOL, the PRL, which has been very recently removed from the market. This pIOL was initially developed in 1987, now in its third generation, and was conceived to be implanted in the posterior chamber through an autosealing corneal incision.…”

Section: Introductionmentioning

confidence: 99%

The posterior chamber phakic refractive lens (PRL): a review

Pérez-Cambrodí

Piñero

Ferrer-Blasco

et al. 2012

Eye

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Implantation of phakic intraocular lenses (pIOLs) is a reversible refractive procedure, preserving the patient's accommodative function with minimal induction of higher order aberrations compared with corneal photoablative procedures. Despite this, as an intraocular procedure, it has potential risks such as cataracts, chronic uveitis, pupil ovalization, corneal endothelial cell loss, pigmentary dispersion syndrome, pupillary block glaucoma, astigmatism, or endophthalmitis. Currently, only two models of posterior chamber pIOLs are commercially available, the implantable collammer lens (STAAR Surgical Co.) and the phakic refractive lens (PRL; Zeiss Meditec). The number of published reports on the latter is very low, and some concerns still remain about its long-term safety. The present article reviews the published literature on the outcomes after PRL implantation in order to provide a general overview and evaluate its real potential as a surgical refractive option.

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“…2,3 An incorrect ICL-size will result in a suboptimal vaulting (distance between the anterior lens surface and the ICL), which has been associated with number of visually significant postoperative complications. [4][5][6][7][8][9][10][11][12] Despite efforts to improve predictability of vault following ICL implantation, it remains poor; the reasons for this are multiple. 5,[13][14][15][16][17][18][19][20][21][22][23] High-frequency ultrasound biomicroscopy (UBM) with a wide scanning field has enabled direct measurement of horizontal sulcus-to-sulcus (STS) diameter.…”

Section: Introductionmentioning

confidence: 99%

Correcting Interdevice Bias of Horizontal White-to-White and Sulcus-to-Sulcus Measures Used for Implantable Collamer Lens Sizing

Guber

Bergin

Perritaz

et al. 2016

American Journal of Ophthalmology

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PURPOSE:To assess the agreement and repeatability of horizontal white-to-white (WTW) and horizontal sulcus-to-sulcus (STS) diameter measurements and use this data in combination with available literature to correct for inter-device bias in pre-operative implantable collamer lens (ICL) size selection. DESIGN: Inter-instrument reliability and bias assessment study. METHODS: A total of 107 eyes from 56 patients assessed for ICL implantation at our institution were included in the study. This was a consecutive series of all patients with suitable available data. The agreement and bias between WTW (measured with the Pentacam and BioGraph devices) and STS (measured with the HiScan device) were estimated. RESULTS: The mean spherical equivalent was -8.93D ± 5.69D. The BioGraph measures of WTW were wider than those taken with the Pentacam (bias= 0.26 mm, p<0.01), and both horizontal WTW measures were wider than the horizontal STS measures (bias >0.91 mm, p<0.01). The repeatability (Sr) of STS measured with the HiScan was 0.39 mm, which was significantly reduced (Sr=0.15 mm) when the average of two measures were used. Agreement between the horizontal WTW measures and horizontal STS estimates when bias was accounted for was г=0.54 with the Pentacam and г=0.64 with the BioGraph. CONCLUSIONS: Large inter-device bias was observed for WTW and STS measures. STS measures demonstrated poor repeatability, but the average of repeated measures significantly improved repeatability. In order to conform to the Federal Drug Administration's accepted guidelines for ICL sizing clinicians should be aware of and account for the inconsistencies between devices.3

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Long-term Changes in Posterior Chamber Phakic Intraocular Collamer Lens Vaulting in Myopic Patients

Cited by 149 publications

References 25 publications

Modulation transfer function of intraocular collamer lens with a central artificial hole

Modulation transfer function of intraocular collamer lens with a central artificial hole

The posterior chamber phakic refractive lens (PRL): a review

Correcting Interdevice Bias of Horizontal White-to-White and Sulcus-to-Sulcus Measures Used for Implantable Collamer Lens Sizing

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