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Intraocular lens power estimation in combined phacoemulsification and pars plana vitrectomy in eyes with epiretinal membranes: a case-control study

 Min Kim  ;  Hyoung Eun Kim  ;  Dong Hyun Lee  ;  Hyoung Jun Koh  ;  Sung Chul Lee  ;  Sung Soo Kim 
 Yonsei Medical Journal, Vol.56(3) : 805-811, 2015 
Journal Title
 Yonsei Medical Journal 
Issue Date
PURPOSE: To evaluate the accuracy of postoperative refractive outcomes of combined phacovitrectomy for epiretinal membrane (ERM) in comparison to cataract surgery alone. MATERIALS AND METHODS: Thirty-nine eyes that underwent combined phacovitrectomy with intraocular lens (IOL) implantation for cataract and ERM (combined surgery group) and 39 eyes that received phacoemulsification for cataract (control group) were analyzed, retrospectively. The predicted preoperative refractive aim was compared with the results of postoperative refraction. RESULTS: In the combined surgery group, refractive prediction error by A-scan and IOLMaster were -0.305±0.717 diopters (D) and -0.356±0.639 D, respectively, compared to 0.215±0.541 and 0.077±0.529 in the control group, showing significantly more myopic change compared to the control group (p=0.001 and p=0.002, respectively). Within each group, there was no statistically significant difference in refractive prediction error between A-scan and IOLMaster (all p>0.05). IOL power calculation using adjusted A-scan measurement of axial length based on the macular thickness of the normal contralateral eye still resulted in significant postoperative refractive error (all p<0.05). Postoperative refraction calculated with adjusted axial length based on actual postoperative central foveal thickness change showed the closest value to the actual postoperative achieved refraction (p=0.599). CONCLUSION: Combined phacovitrectomy for ERM resulted in significantly more myopic shift of postoperative refraction, compared to the cataract surgery alone, for both A-scan and IOLMaster. To improve the accuracy of IOL power estimation in eyes with cataract and ERM, sequential surgery for ERM and cataract may need to be considered.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
고형준(Koh, Hyoung Jun) ORCID logo https://orcid.org/0000-0002-5932-8516
김민(Kim, Min) ORCID logo https://orcid.org/0000-0003-1873-6959
김성수(Kim, Sung Soo) ORCID logo https://orcid.org/0000-0002-0574-7993
김형은(Kim, Hyoung Eun)
이성철(Lee, Sung Chul) ORCID logo https://orcid.org/0000-0001-9438-2385
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