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Comparison of refractive error in phacovitrectomy for epiretinal membrane using ultrasound and partial coherence interferometry

Authors
 Eui C. Kang  ;  Kyou Ho Lee  ;  Hyoung J. Koh 
Citation
 EUROPEAN JOURNAL OF OPHTHALMOLOGY, Vol.26(4) : 356-360, 2016 
Journal Title
 EUROPEAN JOURNAL OF OPHTHALMOLOGY 
ISSN
 1120-6721 
Issue Date
2016
Keywords
Idiopathic epiretinal membrane ; Partial coherence interferometry ; Phacovitrectomy ; Postoperative refractive error ; Ultrasound
Abstract
PURPOSE: To compare the postoperative refractive error (RE) using A-scan ultrasound (US) and partial coherence interferometry (PCI) after phacovitrectomy for idiopathic epiretinal membrane (iERM) and cataract. METHODS: Eighty-eight participants (88 eyes) with iERM and cataracts underwent phacovitrectomies with internal limiting membrane removal. Postoperative RE was the main outcome measured, calculated by subtracting intended spherical equivalent (SE) from 6-month postoperative SE. Secondary outcomes included axial length (AL) measured by 2 methods, change in best-corrected visual acuity (BCVA), and change in central subfield thickness (CSFT). RESULTS: Mean postoperative RE using US showed greater myopic shift compared with that using PCI (-0.569 ± 0.571 D vs -0.169 ± 0.415 D, respectively, p<0.001). The 6-month postoperative RE was within ±0.50 D in 43.2% (38/88) using US vs 84.1% (74/88) using PCI and within ±1.00 D in 84.1% (74/88) using US vs 96.6% (85/88) using PCI. Mean AL measured by US was shorter than that measured by PCI (23.50 ± 1.27 mm vs 23.58 ± 1.30 mm, respectively, p<0.001). Postsurgery, BCVA improved from 0.374 ± 0.264 logMAR to 0.144 ± 0.124 logMAR (p<0.001), and CSFT decreased from 449.2 ± 78.5 ?m to 378.2 ± 47.0 ?m (p<0.001). The BCVA improvement significantly correlated with decreased CSFT (R = 0.268, p = 0.011). CONCLUSIONS: Estimation of intraocular lens power for phacovitrectomies for iERM and cataracts is more accurate when assessed by PCI than by US.
Full Text
http://www.eur-j-ophthalmol.com/article/3895004b-2957-403b-af84-f2081ce06568
DOI
10.5301/ejo.5000732
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Eui Chun(강의천)
Koh, Hyoung Jun(고형준) ORCID logo https://orcid.org/0000-0002-5932-8516
Lee, Kyou Ho(이규호)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/152196
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