Double‐C loop platform in combination with hydrophobic and hydrophilic acrylic intraocular lens materials

Purpose To analyze the behavior of a new double‐C‐loop quadripod symmetrical intraocular lens (IOL) platform combined with a hydrophilic lens material and a new hydrophobic glistening‐free acrylic lens material, Ankoris and Podeye, respectively, in silico (computer simulation), in vitro (laboratory investigation), and in vivo (rabbit model). Setting John A. Moran Eye Center, University of Utah, Salt Lake City, Utah, USA, and Physiol S.A., Liege, Belgium. Design Experimental study. Methods An in silico simulation investigation was performed using finite elements software, an in vitro investigation according to the International Organization for Standardization (ISO11979‐3:2012), and an in vivo implantation in a rabbit model with 4 weeks of follow‐up. Postmortem data were collected by Miyake‐Apple gross examination and histopathologic analyses. Biocompatibility and IOL centration were tested. Results Both IOLs demonstrated statistically insignificant variations in posterior and anterior capsule opacification and Soemmerring ring formation. They were well biotolerated with no signs of toxicity, inflammation, or neovascularization. Axial and centration stability were noted in vitro and in vivo as a result of significant contact between surrounding tissues and haptics and the posterior portion of the optic. Conclusion The results suggest suitability of the double‐C loop IOL platform for the manufacturing of premium (ie, multifocal, toric, and multifocal toric) IOLs. Financial Disclosure Drs. Bozukova, Gobin, and Pagnoulle are employees of Physiol S.A., Liege, Belgium. Dr. Pagnoulle has a proprietary interest in the tested intraocular lenses. No other author has a financial or proprietary interest in any material or method mentioned.

[1]  O. Nishi,et al.  Preventing posterior capsule opacification by creating a discontinuous sharp bend in the capsule. , 1999, Journal of cataract and refractive surgery.

[2]  Oliver Findl,et al.  Capsular bag stability and posterior capsule opacification of a plate-haptic design microincision cataract surgery intraocular lens: 3-year results of a randomised trial , 2013, British Journal of Ophthalmology.

[3]  C. Zetterström,et al.  Posterior capsule opacification after implantation of a hydrophilic or a hydrophobic acrylic intraocular lens: One‐year follow‐up , 2006, Journal of cataract and refractive surgery.

[4]  D. Spalton,et al.  Comparison of posterior capsule opacification rates between hydrophilic and hydrophobic single‐piece acrylic intraocular lenses , 2005, Journal of cataract and refractive surgery.

[5]  L. Gobin,et al.  Évaluation d’une nouvelle plateforme d’implant intraoculaire : centrage et stabilité rotatoire☆ , 2013 .

[6]  Maria A. Woodward,et al.  Dissatisfaction after multifocal intraocular lens implantation , 2009, Journal of cataract and refractive surgery.

[7]  E. Hollick,et al.  Lens epithelial cell regression on the posterior capsule with different intraocular lens materials , 1998, The British journal of ophthalmology.

[8]  C. Weight,et al.  Posterior capsule opacification in rabbit eyes implanted with 1‐piece and 3‐piece hydrophobic acrylic intraocular lenses , 2005, Journal of cataract and refractive surgery.

[9]  R. Nuijts,et al.  Toric intraocular lenses: Historical overview, patient selection, IOL calculation, surgical techniques, clinical outcomes, and complications , 2013, Journal of cataract and refractive surgery.

[10]  J. Hyon,et al.  Rotational stability of a single-piece hydrophobic acrylic intraocular lens during removal of ophthalmic viscosurgical devices. , 2010, American journal of ophthalmology.

[11]  Arlene Gwon,et al.  The Rabbit in Cataract/IOL Surgery , 2008 .

[12]  A. Kruger,et al.  Lens epithelial cell outgrowth on 3 types of intraocular lenses , 2001, Journal of cataract and refractive surgery.

[13]  P. Bloom,et al.  Evaluation of a toric intraocular lens with a Z‐haptic , 2006, Journal of cataract and refractive surgery.

[14]  Christine Jérôme,et al.  Biomechanical and optical properties of 2 new hydrophobic platforms for intraocular lenses , 2013, Journal of cataract and refractive surgery.

[15]  O. Findl,et al.  Comparison of posterior capsule opacification between a 1-piece and a 3-piece microincision intraocular lens , 2012, British Journal of Ophthalmology.

[16]  Björn Johansson Clinical consequences of acrylic intraocular lens material and design: Nd:YAG-laser capsulotomy rates in 3 x 300 eyes 5 years after phacoemulsification , 2009, British Journal of Ophthalmology.

[17]  J. Wolffsohn,et al.  Surgical correction of astigmatism during cataract surgery , 2010, Clinical & experimental optometry.

[18]  David F Chang,et al.  Early rotational stability of the longer Staar toric intraocular lens: Fifty consecutive cases , 2003, Journal of cataract and refractive surgery.

[19]  T. Seidle,et al.  Eye irritation. , 2021, Alternatives to laboratory animals : ATLA.

[20]  Liliana Werner,et al.  Biocompatibility of intraocular lens materials , 2008, Current opinion in ophthalmology.

[21]  C. Weight,et al.  Posterior capsule opacification in rabbit eyes implanted with hydrophilic acrylic intraocular lenses with enhanced square edge , 2004, Journal of cataract and refractive surgery.

[22]  H. Hayashi,et al.  Posterior capsule opacification after implantation of a hydrogel intraocular lens , 2004, British Journal of Ophthalmology.

[23]  P. Morgan-Warren,et al.  Intraocular lens-edge design and material factors contributing to posterior-capsulotomy rates: comparing Hoya FY60aD, PY60aD, and AcrySof SN60WF , 2013, Clinical ophthalmology.

[24]  D. Apple,et al.  Anterior capsule opacification: correlation of pathologic findings with clinical sequelae. , 2001, Ophthalmology.

[25]  Virginie Bertrand,et al.  Assessment of new‐generation glistening‐free hydrophobic acrylic intraocular lens material , 2012, Journal of cataract and refractive surgery.

[26]  R. Montés-Micó,et al.  Cataract surgery with toric intraocular lens implantation in patients with high corneal astigmatism , 2011, Journal of cataract and refractive surgery.

[27]  David F. Chang,et al.  Comparative rotational stability of single‐piece open‐loop acrylic and plate‐haptic silicone toric intraocular lenses , 2008, Journal of cataract and refractive surgery.