Zusammenfassung
Hintergrund
Ziel der vorliegenden Studie ist die Evaluierung des klinischen Verhaltens der hydrophilen Acryllinse ACR6D SE (Corneal®) mit scharfer umlaufender Kante und 10° angulierten Haptiken.
Setting
Universitätsklinik für Augenheilkunde und Optometrie, Allgemeines Krankenhaus, Wien, Österreich.
Methoden
Retrospektive Erhebung an 97 Augen bei 80 Patienten nach Operation einer altersbedingten Katarakt. Die postoperativen Untersuchungen fanden nach durchschnittlich 1,8 Jahren statt (Range: 1–4 Jahre) und umfassten die Feststellung der Best Corrected Visual Acuity (BCVA), Spaltlam-penuntersuchung, die subjektive Beurteilung der Linsen-Kapsel-Abstände (LK), Buttonholding, Falten der posterioren Kapsel, Anterior Capsular Opacification (ACO), regeneratorischer (PCOr) sowie fibrotischer PCO (PCOf). Die PCOr wurde zusätzlich objektiviert anhand retroilluminierter digitaler Bilder unter Verwendung des AQUA-Systems ausgewertet.
Ergebnisse
Die postoperative Best Corrected Visual Acuity (BCVA) betrug 0,8 Snellen ± 1,8 Linien (0,11 ± 0,19 [log MAR], n = 91). Das mittlere sphärische Äquivalent betrug -0,48 ± 0,65 dpt (Range: −1,75 bis +1,00). Der vordere Linsen-Kapsel-Abstand (LKa) war in 52 Augen (61%) positiv (n = 85), der hintere Linsen-Kapsel-Abstand (LKp) in 6 Augen (7%) positiv (n = 86). Eine ACO fand sich insgesamt bei 59 Augen (70%, n = 84). PCOf bestand bei 17 Augen (19%, n = 95), PCOr bei 69 Augen (78%, n = 88). Der subjektive PCOr-Score lag bei 1,9 ± 1,6 [Skala 0–10]. Die objektive Auswertung mittels AQUA ergab einen Score von 1,7 ± 1,4 [Skala 0–10]. Eine YAG-Kapsulotomie wurde bei 10 Augen (11%, n = 95) durchgeführt.
Zusammenfassung
Die wesentlichen Eigenschaften der ACR6D SE sind die weit posteriore Lage im Kapselsack (bedingt durch die 10°-Angulierung) mit einem hohen Anteil von Augen mit positivem LKa und dadurch weniger ACO. Die Angulierung der Haptiken und die scharfe umlaufende Kante dürften bei dieser Linse eine höhere PCOr, die aufgrund der geringen Fusion der Kapselblätter zu erwarten wäre, verhindern.
Summary
Background
To evaluate the clinical performance of the ACR6D SE (Corneal®), a hydrophilic acrylic intraocular lens (IOL) with a sharp optic edge and a 10° haptic angulation.
Setting
Department of Ophthalmology and Optometry, General Hospital, Vienna, Austria.
Methods
97 eyes of 80 patients with age-related cataract were included in this retrospective study and received an ACR6D SE IOL. The postoperative examinations took place after a mean of 1.8 years (range: 1–4 years) and comprised the assessment of the Best Corrected Visual Acuity (BCVA), slit-lamp examination, the subjective assessment of the lens-capsule distances (anterior: LKa, posterior: LKp), buttonholding, capsular folds, anterior capsular opacification (ACO) and regeneratory (PCOr) as well as fibrotic posterior capsule opacification (PCOf). In addition, the PCOr was evaluated in an objective manner using retroilluminated digital images and the AQUA system.
Results
The postoperative Best Corrected Visual Acuity (BCVA) was 0.8 Snellen ± 1.8 lines (0.11 ± 0.19 [log MAR], n = 91). The mean spherical equivalent was −0.48 ± 0.65 dpt (range: −1.75 to +1.00). The anterior lens-capsule distance (LKa) was positive in 52 eyes (61%) (n = 85), the posterior lens-capsule distance (LKp) positive in 6 eyes (7%, n = 86). ACO was found in 59 eyes (70%, n = 84). PCOf was found in 17 eyes (19%, n = 95), PCOr in 69 eyes (78%, n = 88). The subjective PCOr score was 1.9 ± 1.6 [scale 0–10]. The objective assessment showed a score of 1.7 ± 1.4 [scale 0–10]. Nd-YAG laser-capsulotomy was performed in 10 eyes (11%, n = 95).
Conclusion
The ACR6D SE shows a high rate of positive LKa which leads to less ACO. The angulation of the haptics and the sharp optic edge could inhibit higher PCOr that would be expected with a view to the lacking fusion of the capsular sheets.
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Literatur
Buehl W, Findl O, Menapace R, et al (2003) Reproducibility of standardized retroillumination photography for quantification of posterior capsular opacification. J Cataract Refract Surg 28: 265–270
Findl O, Buehl W, Menapace R, Georgopoulos M, Rainer G, Siegl H, Kaider A, Pinz A (2003) Comparison of 4 methods for quantifying posterior capsular opacification. J Cataract Refract Surg 29: 106–111
Committee on Vision, National Research Council, National Academy of Sciences (1979) Recommended standard procedures for the clinical measurement and specification of visual acuity. Washington, DC, Report of Working Group 39
Working Group 39 (1980) Recommended standard procedures the clinical measurement and specification of visual acuity. Adv Ophthalmol 41: 103–148
Bailey IL, Lovie JE (1976) New design principles for visual acuity letter charts. Am J Optom Physiol Optics 53: 740
Vargas LG, Peng Q, Apple DJ, Escobar-Gomez M, Pandey SK, Arthur SN, Hoddinott DSM, Schmidbauer JM (2002) Evaluation of 3 modern single-piece foldable intraocular lenses — Clinicopathological study of posterior capsule opacification in a rabbit model. J Cataract Refract Surg 28: 1241–1250
Buehl W, Findl O, Menapace R, Rainer G, Sacu S, Kiss B, Petternel V, Georgopoulos M (2002) Effect of an acrylic intraocular lens with a sharp posterior optic edge on posterior capsule opacification. J Cataract Refract Surg 28: 1105–1111
Auffarth GU, Golescu A, Becker KA, Völcker HE (2003) Quantification of posterior capsule opacification with round and sharp edge intraocular lenses. Ophthalmology 110: 772–780
Tetz MR, Nimsgern C (1999) Posterior capsule opacification. Part 2: Clinical findings. J Cataract Refract Surg 25: 1162–1674
Nagamoto T, Fujiwara T (2003) Inhibition of lens epithelial cell migration at the intraocular lens optic edge — Role of capsular bending and contact pressure. J Cataract Refract Surg 29: 1605–1612
Petternel V, Menapace R, Findl O, Kiss B, Wirtisch M, Rainer G, Drexler W (2004) Effect of optic edge design and haptic angulation on postoperative intraocular lens position change. J Cataract Refract Surg 30: 52–57
Schmidbauer JM, Escobar-Gomez M, Apple DJ, Peng Q, Arthur SN, Vargas LG (2002) Effect of Haptic angulation on posterior opacification in modern foldable lenses with a square truncated optic edge. J Cataract Refract Surg 28: 1251–1255
Hansen SO, Crandall AS, Olson RJ (1993) Progressive constriction of the anterior capsule opening following intact capsulorhexis. J Cataract Refract Surg 19: 77–82
Nishi O, Nishi K, Sakanishi K (1998) Inhibition of migrating lens epithelial cells at the capsular bend created by the rectangular optic edge of a posterior chamber intraocular lens. Ophthalmic Surg Lasers 29: 587–594
Nishi O, Nishi K (1999) Preventing posterior capsule opacification by creating a discontinuous sharp bend in the capsule. J Cataract Refract Surg 25: 521–526
Nishi O, Nishi K, Wickström K (2000) Preventing lens epithelial cell migration using intraocular lenses with sharp rectangular edges. J Cataract Refract Surg 26: 1543–1549
Ursell PG, Spalton DJ, Pande MV, et al (1998) Relationship between intraocular lens biomaterials and posterior capsule opacification. J Cataract Refract Surg 24: 352–360
Nishi O, Nishi K (2002) Preventive effect of a second-generation silicone intraocular lens on posterior capsule opacification. J Cataract Refract Surg 28: 1236–1240
Nishi O, Nishi K, Akura J (2002) Speed of the capsular bend formation of the optic edge of acrylic, silicone, and poly-(methyl methacrylate) lenses. J Cataract Refract Surg 28: 431–437
Oshika T, Nagata T, Ishii Y (1998) Adhesion of lens capsule to intraocular lenses of poly methylmethacrylate, silicone and acrylic foldable materials: an experimental study. Br J Ophthalmol 82: 549–553
Nagata T, Minakata A, Watanabe I (1998) Adhesiveness of AcrySof to a collagen film. J Cataract Refract Surg 24: 367–370
Scaramuzza A, Fernando GT, Crayford BB (2001) Posterior capsule opacification and lens epithelial cell layer formation: Hydroview hydrogel versus AcrySof acrylic intraocular lenses. J Cataract Refract Surg 27: 1047–1054
Müllner-Eidenbröck A, Amon M, Schauersberger J et al (2001) Cellular reaction on the anterior surface of 4 types of intraocular lenses. J Cataract Refract Surg 27: 734–740
Koch MU, Kalicharan D, van der Want JJL (1999) Lens epithelial cell layer formation related to hydrogel foldable intraocular lenses. J Cataract Refract Surg 25: 1637–1640.
Schauersberger J, Amon M, Kruger A et al (2001) Lens epithelial outgrowth on 3 types of intraocular lenses. J Cataract Refract Surg 27: 850–854
Tognetto D, Toto L, Ballone E, Ravalico G (2002) Biocompatibility of hydrophilic intraocular lenses. J Cataract Refract Surg 28: 644–651
Lindstrom RL, Buratto L, Koch DD, et al (2000) Criteria for the intraocular lens selection. Ocular Surgery News, April
Georgopoulos M, Menapace R, Findl O, Rainer G, Petternel V, Kiss B (2001) Posterior continuous curvilinear capsulorhexis with hydrogel and silicone intraocular lens implantation — Development of capsulorhexis size and capsule Opacification. J Cataract Refract Surg 27: 825–832
Georgopoulos M, Menapace R, Findl O, Petternel V, Kiss B, Rainer G (2003) After-cataract in adults with primary posterior capsulorhexis — Comparison of hydrogel and silicone intraocular lenses with round edges after 2 years. J Cataract Refract Surg 29: 955–960
Tognetto D, Toto L, Sanguinetti G, Cecchini P, Vattovani O, Filacorda S, Ravalico S (2003) Lens epithelial cell reaction after implantation of different intraocular lens materials. Ophthalmology 110: 1935–1941
Davison JA (1993) Capsule contraction syndrome. J Cataract Refract Surg 19: 582–589
Hayashi K, Hayashi H, Nakao F, Hayashi F (1997) Reduction in the area of the anterior capsule opening after polymethylmetacrylate, silicone, and soft acrylic intraocular lens implantation. Am J Ophthalmol 123: 441–447
Kimura W, Yamanishi S, Kimura T, et al (1998) Measuring the anterior capsule opening after cataract surgery to assess capsule shrinkage. J Cataract Refract Surg 24: 1235–8
Miyake K, Ota I, Miyake S, Maekubo K (1996) Correlation between intraocular lens hydrophilicity and anterior capsular opacification and aqueous flare. J Cataract Refract Surg 22: 764–769
Sacu S, Menapace R, Findl O, Georgopoulos M, Buehl W, Kriechbaum K, Rainer G (2004) Influence of optic edge design and anterior capsule polishing on posterior capsule fibrosis. J Cataract Refract Surg 30: 658–662
Tognetto D, Toto L, Ravalico G (2000) Pit defects on the anterior surface of hydrophilic foldable intraocular lenses. J Cataract Refract Surg 26: 1560–1564
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Vock, L., Georgopoulos, M., Sacu, S. et al. Eigenschaften der hydrophilen single-piece Acryllinse ACR6D SE. Spektrum Augeheilkd 18, 288–293 (2004). https://doi.org/10.1007/BF03164718
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DOI: https://doi.org/10.1007/BF03164718