Purpose: To determine the influence of posterior chamber intraocular lens implantation on the incidence of secondary cataract and the grade of anterior chamber inflammation following cataract surgery. Methods: Sixty six patients (36 men and 30 women), between 71 and 84 age (mean 75.8 yrs) underwent cataract surgery, phacoemulsification and implantation of an intraocular lens performed by the same surgeon. We used three type of lens materials: PMMA ( 26 patients), Acrylic-hydrophobic (22 patients) and Acrylic-hydrophlic (18 patients). After 12 months in all patients we evaluated the visual acuity, the posterior capsule opacification and the the flare in the anterior chamber with a laser flare-meter (Kowa FM500, Tokio-Japan). Results: At 12 months we observed secondary cataract in 64% of patients examined. The grade of secondary cataract was 0.371 ± 0.298 (Acrylic-hydrophobic), 0.486 ± 0.146 (Acrylic-hydrophilic) and 0.943 ± 0.533 (PMMA). There was a statistical significantly difference between Acrylic-hydrophobic lens vs PMMA (p<0.05) The laser flare-meter was: 5.900 ± 2.651 photons/mm (Acrylic-hydrophobic), 6.140 ± 1.702 photons/mm (Acrylic-hydrophilic) and 10.143 ± 3.426 photons/mm (PMMA) It was statistical significantly the difference of laser flare between Acrylic-hydrophobic and PMMA (p<0.021). With the Spearman correlation test we have found a correlation between the anterior chamber flare and the secondary cataract in the PMMA group (p<0.045) Conclusions: The results demonstrate that the lens type have a role in the development of the secondary cataract. The higher incidence of secondary cataract was observed with PMMA maybe correlated with lens biocompatibility.

Correlation between IOL materials and secondary cataract. A flare meter study

CELLINI, MAURO;BENDO, EDLIRA;CAMPOS, EMILIO
2005

Abstract

Purpose: To determine the influence of posterior chamber intraocular lens implantation on the incidence of secondary cataract and the grade of anterior chamber inflammation following cataract surgery. Methods: Sixty six patients (36 men and 30 women), between 71 and 84 age (mean 75.8 yrs) underwent cataract surgery, phacoemulsification and implantation of an intraocular lens performed by the same surgeon. We used three type of lens materials: PMMA ( 26 patients), Acrylic-hydrophobic (22 patients) and Acrylic-hydrophlic (18 patients). After 12 months in all patients we evaluated the visual acuity, the posterior capsule opacification and the the flare in the anterior chamber with a laser flare-meter (Kowa FM500, Tokio-Japan). Results: At 12 months we observed secondary cataract in 64% of patients examined. The grade of secondary cataract was 0.371 ± 0.298 (Acrylic-hydrophobic), 0.486 ± 0.146 (Acrylic-hydrophilic) and 0.943 ± 0.533 (PMMA). There was a statistical significantly difference between Acrylic-hydrophobic lens vs PMMA (p<0.05) The laser flare-meter was: 5.900 ± 2.651 photons/mm (Acrylic-hydrophobic), 6.140 ± 1.702 photons/mm (Acrylic-hydrophilic) and 10.143 ± 3.426 photons/mm (PMMA) It was statistical significantly the difference of laser flare between Acrylic-hydrophobic and PMMA (p<0.021). With the Spearman correlation test we have found a correlation between the anterior chamber flare and the secondary cataract in the PMMA group (p<0.045) Conclusions: The results demonstrate that the lens type have a role in the development of the secondary cataract. The higher incidence of secondary cataract was observed with PMMA maybe correlated with lens biocompatibility.
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BRAVETTI G.O.; CELLINI M.; BENDO E.; CAMPOS E.C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/12790
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