Journal of cataract and refractive surgery · 2004
Refractive error with optimum intraocular lens power calculation after glaucoma filtering surgery.
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Tan Hsin-Yuan, Wu Shiu-Chen
Аннотация
PURPOSE: To assess the possibility of deriving an optimum intraocular lens (IOL) power after previous successful trabeculectomy.
SETTING: Chang Gung Memorial Hospital, Linko, Taiwan.
METHODS: The retrospective study included 1 eye of 22 patients who had cataract surgery after successful trabeculectomy performed by 1 surgeon. Twenty-two eyes that had cataract surgery only performed by the same surgeon were paired as a control group. The IOL power was calculated by the Sanders-Retzlaff-Kraff regression analysis formula based on the data derived after trabeculectomy. The postoperative refractive error at least 1 month after cataract surgery was recorded, and the difference was analyzed by a paired t test and 2-sample t test.
RESULTS: Cataract surgery combined with trabeculectomy resulted in a mean spherical equivalent of -0.33 diopter +/- 1.58 (SD). This was not significantly different from the predicted refractive error or the result in the control group (P>.05).
CONCLUSION: Although the fluctuation in pseudophakic axial length measurement after glaucoma filtering surgery was logical, a predictable pseudophakic refractive outcome was derived clinically once the intraocular pressure stabilized after trabeculectomy.
SETTING: Chang Gung Memorial Hospital, Linko, Taiwan.
METHODS: The retrospective study included 1 eye of 22 patients who had cataract surgery after successful trabeculectomy performed by 1 surgeon. Twenty-two eyes that had cataract surgery only performed by the same surgeon were paired as a control group. The IOL power was calculated by the Sanders-Retzlaff-Kraff regression analysis formula based on the data derived after trabeculectomy. The postoperative refractive error at least 1 month after cataract surgery was recorded, and the difference was analyzed by a paired t test and 2-sample t test.
RESULTS: Cataract surgery combined with trabeculectomy resulted in a mean spherical equivalent of -0.33 diopter +/- 1.58 (SD). This was not significantly different from the predicted refractive error or the result in the control group (P>.05).
CONCLUSION: Although the fluctuation in pseudophakic axial length measurement after glaucoma filtering surgery was logical, a predictable pseudophakic refractive outcome was derived clinically once the intraocular pressure stabilized after trabeculectomy.