Serveur d'exploration sur les dispositifs haptiques

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Posterior Capsule Opacification in Silicone and Hydrophobic Acrylic Intraocular Lenses with Sharp-edge Optics Six Years After Surgery

Identifieur interne : 004858 ( Main/Exploration ); précédent : 004857; suivant : 004859

Posterior Capsule Opacification in Silicone and Hydrophobic Acrylic Intraocular Lenses with Sharp-edge Optics Six Years After Surgery

Auteurs : Lorenz Vock [Autriche] ; Alja Crnej [Slovénie] ; Oliver Findl [Autriche, Royaume-Uni] ; Thomas Neumayer [Autriche] ; Wolf Buehl [Autriche] ; Stefan Sacu [Autriche] ; Georg Rainer [Autriche] ; Rupert Menapace [Autriche]

Source :

RBID : Pascal:09-0177267

Descripteurs français

English descriptors

Abstract

• PURPOSE: To compare posterior capsule opacification (PCO) between 2 three-piece intraocular lenses (IOLs) both with sharp-optic edges and open loop haptics, one made of silicone and the other made of hydrophobic acrylate, 6 years after surgery. • DESIGN: Randomized, controlled, patient- and examiner-masked trial with intra-patient comparison. • METHODS: One hundred and six eyes in 53 patients were included initially. Forty-four eyes of 22 patients with age-related bilateral cataract were available for the 6 years follow-up. Each patient had standard cataract surgery and randomly received a silicone (CeeOn 911A; AMO, Santa Ana, California, USA) or hydrophobic acrylic (AcrySof MA60BM; Alcon, Fort Worth, Texas, USA) IOL in the first eye, the other type of IOL in the fellow eye. Follow-up examinations were at 1, 3, and 6 years after surgery. The intensity of posterior capsule opacification (PCO) was assessed using digital retro-illuminated photos and the "automated quantification of after-cataract" (AQUA) software. Neodymium-yttrium-aluminum-garnet-laser capsulotomies (YAG-LC) performed were noted. • RESULTS: Six years after surgery, the AQUA scores were 2.3 ± 1.4 for the silicone and 3.8 ± 2.0 for the acrylic IOLs (P =.0016). The acrylic IOL eyes also had a significant increase in AQUA score from the 3-year to the 6-year follow-up. YAG-LC were performed in 2 silicone and 6 acrylic IOLs (P =.01). • CONCLUSIONS: An angulated three-piece hydrophobic acrylic IOL had more PCO 6 years after surgery than a silicone IOL of otherwise similar design. Apart from an optic material effect, differences in haptic design and the degree of optic edge sharpness may play a role.


Affiliations:


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<term>Ophthalmology</term>
<term>Optics</term>
<term>Posterior</term>
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<term>Capsule</term>
<term>Opacification</term>
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<div type="abstract" xml:lang="en">• PURPOSE: To compare posterior capsule opacification (PCO) between 2 three-piece intraocular lenses (IOLs) both with sharp-optic edges and open loop haptics, one made of silicone and the other made of hydrophobic acrylate, 6 years after surgery. • DESIGN: Randomized, controlled, patient- and examiner-masked trial with intra-patient comparison. • METHODS: One hundred and six eyes in 53 patients were included initially. Forty-four eyes of 22 patients with age-related bilateral cataract were available for the 6 years follow-up. Each patient had standard cataract surgery and randomly received a silicone (CeeOn 911A; AMO, Santa Ana, California, USA) or hydrophobic acrylic (AcrySof MA60BM; Alcon, Fort Worth, Texas, USA) IOL in the first eye, the other type of IOL in the fellow eye. Follow-up examinations were at 1, 3, and 6 years after surgery. The intensity of posterior capsule opacification (PCO) was assessed using digital retro-illuminated photos and the "automated quantification of after-cataract" (AQUA) software. Neodymium-yttrium-aluminum-garnet-laser capsulotomies (YAG-LC) performed were noted. • RESULTS: Six years after surgery, the AQUA scores were 2.3 ± 1.4 for the silicone and 3.8 ± 2.0 for the acrylic IOLs (P =.0016). The acrylic IOL eyes also had a significant increase in AQUA score from the 3-year to the 6-year follow-up. YAG-LC were performed in 2 silicone and 6 acrylic IOLs (P =.01). • CONCLUSIONS: An angulated three-piece hydrophobic acrylic IOL had more PCO 6 years after surgery than a silicone IOL of otherwise similar design. Apart from an optic material effect, differences in haptic design and the degree of optic edge sharpness may play a role.</div>
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