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Power prediction for one-piece and three-piece intraocular lens implantation after cataract surgery in patients with chronic angle-closure glaucoma: a prospective, randomized clinical trial

 Soolienah Rhiu  ;  Eun Suk Lee  ;  Tae-im Kim  ;  Hye Sun Lee  ;  Chan Yun Kim 
 ACTA OPHTHALMOLOGICA, Vol.90(8) : 580-585, 2012 
Journal Title
Issue Date
Aged ; Aged, 80 and over ; Algorithms ; Biometry ; Cataract/complications* ; Chronic Disease ; Female ; Glaucoma, Angle-Closure/complications* ; Humans ; Intraocular Pressure/physiology ; Lens Implantation, Intraocular* ; Lenses, Intraocular* ; Male ; Middle Aged ; Optics and Photonics* ; Phacoemulsification* ; Prospective Studies ; Prosthesis Design ; Refraction, Ocular/physiology ; Reproducibility of Results ; Tonometry, Ocular ; Visual Acuity/physiology
angle-closure glaucoma ; cataract ; glaucoma ; one-piece intraocular lens ; powerprediction accuracy ; three-piece intraocular lens
PURPOSE: To assess the accuracy of intraocular lens (IOL) power prediction for cataract surgery in chronic angle-closure glaucoma (CACG) patients with different IOLs' implantation. METHODS: This prospective randomized clinical trial included 45 eyes with CACG and 48 eyes with normal controls undergoing cataract surgery. In the CACG group, 23 eyes (51%) had three-piece IOL implantation and 22 eyes (49%) had one-piece IOL implantation. In the normal control group, 25 eyes (52%) had three-piece IOL implantation and 23 eyes (48%) had one-piece IOL implantation. Using the SRK/T formula, the mean difference between the predicted and actual postoperative spherical equivalent [mean absolute error (MAE)] was obtained and converted to natural logarithm (ln) for statistical analysis. The power of the implanted IOL was calculated to predict postoperative SE using three formulas: SRK II, Holladay II and Hoffer Q by post hoc analysis in each group. The predictive accuracy of each formula was analysed by comparing the lnMAE. RESULTS: In the one-piece IOL group, there was no difference in lnMAE between the CACG and normal control group (p = 0.314). In the three-piece IOL group, the lnMAE of the CACG group was larger than that of the normal control group (p < 0.001). The lnMAEs calculated by the SRK/T formula were more accurate than the Holladay II (p = 0.045) and Hoffer Q (p = 0.042) formula in the CACG one-piece IOL group. CONCLUSIONS: Implantation of one-piece IOLs provides similar power prediction accuracy comparable to normal cataract patients; this result may be explained by the IOL haptic configuration or design.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Kim, Chan Yun(김찬윤) ORCID logo https://orcid.org/0000-0002-8373-9999
Kim, Tae Im(김태임) ORCID logo https://orcid.org/0000-0001-6414-3842
Rhiu, Soolienah(유수리나)
Lee, Eun Suk(이은석)
Lee, Hye Sun(이혜선) ORCID logo https://orcid.org/0000-0001-6328-6948
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