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- W2152985792 abstract "purpose. To evaluate posterior capsule opacification (PCO) in humans after cataract surgery with intraocular lens (IOL) implantation, by using optical coherence tomography (OCT-1). methods. Sixty-six eyes with PCO and 20 eyes with a normal posterior capsule were analyzed. A 3-mm-long horizontal scan of the posterior capsule was obtained. Measurements at three points and their average were recorded. Intraoperator and interoperator reliabilities were assessed. Investigated was peak intensity (PI) and posterior capsule thickening (PCT), with PCT indicating the distance between two reflectivity spikes, with an approximate axial resolution of 10 μm. Results were compared with visual acuity (VA) and PCO type. results. Intraoperator reliability was 0.59 and 0.97 for average PI and PCT, respectively. The interoperator concordance correlation coefficient was 0.70 and 0.82 for average PI and PCT, respectively. Median (interquartile range) intensities of the reflectivity spike were 16.88 (dB) (range, 12.88–20.41) and 11.9 (8.58–14.28), respectively, in the PCO and control eyes (P = 0.001). PCT was found in PCO eyes (median: 86.13 μm; range, 46.33–115.33), whereas no second spike appeared in control eyes (P = 0.001). The area under the receiver operating characteristic curve of the average PCT for differentiating pearl-type from fibrosis-type PCO was 0.87 (P = 0.001). For a cutoff point of 55.3 μm, the sensitivity was 97.5%, and the specificity was 69%. Worse VA correlated significantly only with larger PCT (r o= 0.66; P = 0.01). conclusions. OCT-1 appears useful to quantitate PCO. In addition, this system seems to discriminate between different types of PCO. PCT may be a previously unrecognized factor in VA degradation." @default.
- W2152985792 created "2016-06-24" @default.
- W2152985792 creator A5021361215 @default.
- W2152985792 creator A5039852231 @default.
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- W2152985792 date "2005-11-01" @default.
- W2152985792 modified "2023-10-17" @default.
- W2152985792 title "Objective Quantification of Posterior Capsule Opacification after Cataract Surgery, with Optical Coherence Tomography" @default.
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- W2152985792 doi "https://doi.org/10.1167/iovs.04-1531" @default.
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