多焦点散光型与单焦点散光型人工晶状体植入术后视觉质量对比

doi:10.3760/cma.j.issn.1674-845X.2015.08.007

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Abstract

Objective To compare visual quality after implantation of either a multifocal toric intraocular lens （IOL） or a monofocal toric IOL. Methods This retrospective case-control study was comprised of 32 eyes of 27 patients with more than 1.0 D of preexisting corneal astigmatism. Ten eyes of 8 patients were implanted with Acrysof IQ Restor toric IOLs （SND1T group） and the other 22 eyes of 19 patients were implanted with Acrysof IQ toric IOLs （SN6AT group）. Uncorrected （UDVA） and corrected （CDVA） distance visual acuities， uncorrected （UNVA） and corrected （CNVA） near visual acuities， residual astigmatism， IOL rotation， contrast sensitivity （CS）， modulation transfer functions （MTF） and total eye wavefront aberrations were evaluated for 6 months postoperatively. Data were analyzed using an independent-samples t test and repeated-measures ANOVA. Results The UNVA in the SND1T group was better than that in the SN6AT group at the postoperative time points （t=11.683， 8.252， 7.384， P<0.01）. At 6 months postoperatively，the CS with glare at low spatial frequencies （3 c/d） in the SND1T group was significantly lower than that in the SN6AT group （t=2.086， P<0.05）. MTFs were significantly lower in the SND1T group than that in the SN6AT group with 3-mm pupils at middle spatial frequencies （5， 10 c/d）（t=2.050， 2.078， P<0.05）. There were no statistically significant differences in UDVA， CDVA and CNVA throughout the postoperative time points between the 2 groups. At 6 months postoperatively， the difference in corneal astigmatism between preoperative and postoperative measurements， the mean IOL axis rotation， CS without glare and with glare at residual spatial frequencies， MTF with 3-mm pupils at medium and high spatial frequencies and with 5-mm pupils at all spatial frequencies， total eye wavefront aberrations， total higher-order aberrations， spherical aberrations and coma under 3- and 5-mm pupils were not statistically significant between the 2 groups. Conclusion Compared with the monofocal toric IOL， the multifocal toric IOL can provide excellent overall visual acuity，effective astigmatic correction and favorable visual quality.

Key words： Lenses,intraocular,multifocal toric Cataract Astigmatism Contrast sensitivity Modulation transfer function Aberration

Corresponding Authors: Huang Zhenping， Email： huangzhenping1963@163.com

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	Chen Xiangfei
	Hou Peili
	Lu Yan
	Cao Qian
	Huang Zhenping

Cite this article:

Chen Xiangfei,Hou Peili,Lu Yan等. Comparative analysis of visual quality after implantation of multifocal toric and monofocal toric intraocular lenses[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2015, 17(8): 474-479.

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https://www.cjoovs.com/EN/10.3760/cma.j.issn.1674-845X.2015.08.007 OR https://www.cjoovs.com/EN/Y2015/V17/I8/474

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