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Visual acuity after penetrating keratoplasty for pseudophakic and aphakic bullous keratopathy
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| Abstract |
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| Purpose: To identify prognostic factors that determine the visual acuity after penetrating keratoplasty (PKP) for bullous keratopathy secondary to cataract surgery. Setting: Department of Ophthalmology, University Hospital Antwerp, Antwerp, Belgium. Methods: Twenty-six patients who had PKP for bullous keratopathy were examined before and after surgery. The patients were divided into 3 groups: pseudophakic bullous keratopathy (PBK) after cataract extraction with implantation of a posterior chamber intraocular lens (PC IOL) (Group 1) or an anterior chamber IOL (AC IOL) (Group 2); aphakic bullous keratopathy (ABK) (Group 3). The following parameters were recorded: preoperative and postoperative visual acuity, age at the time of surgery, interval between cataract surgery and development of bullous keratopathy, presence of an AC IOL or a PC IOL, aphakia, and presence of concomitant ocular pathology. Results: Visual acuity improved in Group 1 (0.02 to 0.26); no visual improvement was observed in the other groups. Posterior segment damage occurred in one third of the patients in Group 1 and in all patients in the other groups. Patients with an intact posterior segment had a significantly better visual outcome. In eyes without posterior segment pathology, visual acuity improved from a mean of 0.03 (range 0 to 0.20) to a mean of 0.37 (range 0.03 to 0.90). In eyes with posterior segment pathology, no visual acuity improvement could be obtained. Conclusion: The most important negative prognostic factors affecting visual acuity were the presence of concomitant ocular pathology, an AC IOL, and a long interval between surgery and the development of bullous keratopathy. | | |
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English
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Journal of cataract and refractive surgery. - Fairfax, Va | |
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Fairfax, Va : 2003
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0886-3350
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29:3(2003), p. 482-486
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000182005100022
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