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The Association Of Accuracy Of Intraocular Lens Power Estimation And Preoperative Macular Thickness In Phacovitrectomy For Epiretinal Membrane | 79576
ISSN: 2155-9570

Journal of Clinical & Experimental Ophthalmology
Open Access

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The association of accuracy of intraocular lens power estimation and preoperative macular thickness in phacovitrectomy for epiretinal membrane

17th Global Ophthalmology, Glaucoma and Optometry Conference

Eun Jee Chung

NHIS Ilsan Hospital, South Korea

ScientificTracks Abstracts: J Clin Exp Ophthalmol

DOI: 10.4172/2155-9570-C1-072

Abstract
Statement of the Problem: Patients with epiretinal membrane usually have coexisting cataract at presentation. Phacovitrectomy has become a common procedure in epiretinal membrane cases and off ers quicker visual rehabilitation and reduce costs for additional surgery. In this study, we evaluate the accuracy of intraocular lens power estimation and the factors associated with outcome including preoperative central macular thickness in phacovitrectomy for epiretinal membrane. Methodology & Th eoretical Orientation: We performed a retrospective case review of 42 consecutive patients that underwent phacovitrectomy for epiretinal membrane. Axial lengths were measured using ultrasound (A-scan) and optical biometry (IOL Master). Achieved and predicted refractions were compared to calculate the mean postoperative refractive prediction error (ME). Several preoperative and postoperative factors including preoperative central macular thickness measured by OCT related to the postoperative refraction were analyzed. Findings: Th e goal diopters measured by A-scan and IOL Master were 0.05 ± 0.21 diopters (D) and -0.07±0.34 D, respectively with no statistical signifi cant diff erence between the diopters (p=0.168). Th e actual postoperative manifest refraction was -0.43±0.43 D, which was statistically signifi cant tendency to a myopic shift from the goal diopters (p<0.001, 0.003). ME of 23 eyes using A-scan and IOL Master were −0.48±0.46 D and -0.36±0.49 D, respectively. Th ere was no statistically signifi cant diff erence in the refractive outcomes between the refractive errors (p=0.407). Preoperative mean central macular thickness measured by ocular coherence tomography was signifi cantly decreased aft er surgery from 462.50±48.30 μm to 372.39±47.70 μm (p<0.001). Th e decrease in central macular thickness showed the correlation with the magnitude of postoperative myopic shift (r=0.479, p=0.044; r=0.485, p=0.041). Conclusion & Signifi cance: Combined phacovitrectomy in epiretinal membrane showed small biometric errors within the tolerable range in most cases. Th e decrease in central macular thickness had a signifi cant correlation with the magnitude of postoperative myopic shift .
Biography

Eun Jee Chugn is a Retina Specialist, focuses on clinical and research interests that include age-related macular degeneration, diabetic retinopathy, retinal vein occlusion and surgical management of vitreoretinal diseases. She has completed her Residency and Retina Fellowship at Yonsei University and obtained her Medical degree and PhD from Yonsei University.
 

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