Objective To evaluate the effects of angle kappa on the visual quality of multifocal intraocular lenses (MIOLs). Methods This was a prospective observational study. Forty-seven eyes of 47 patients who underwent cataract phacoemulsification and MIOL implantation in our department were enrolled in the study. The patients were between 46 and 81 years old. All patients were divided into two groups according to their kappa angle size. There were 24 eyes in group A (0<r≤0.17 mm) and twenty-three eyes in group B (0.17 mm<r≤0.40 mm). The follow-up period was 3 months after surgery, and uncorrected distance visual acuity, intermediate visual acuity and near visual acuity were evaluated. All patients were assessed for modulation transfer function (MTF) cutoff, Strehl ratio and contrast sensitivity. The occurrence of adverse visual symptoms and spectacle independence were also recorded. The data were analyzed with an independent t test or χ2 test. Results There was a statistically significant difference between group A and group B in the occurrence of halo (χ2=4.997, P<0.05). There were no significant differences in uncorrected visual acuity, MTF cutoff, Strehl ratio or the occurrence of glare between the two groups (P>0.05). Conclusion The angle kappa may have little effect on the visual qualities of MIOLs. However, the angle kappa may be related to adverse visual symptoms.
陈琛,叶剑,黄婵娟,艾李倩玉. 不同Kappa角眼多焦点人工晶状体植入术后的视觉质量[J]. 中华眼视光学与视觉科学杂志, 2016, 18(5): 298-301.
Chen Chen,Ye Jian,Huang Chanjuan,Ai Li Qianyu. The visual quality after implantation of multifocal intraocular lenses in different angle kappa eyes. Chinese Journal of Optometry Ophthalmology and Visual science, 2016, 18(5): 298-301. DOI: DOI:10.3760/cma.j.issn.1674-845X.2016.05.010
De Vries NE, Webers CA, Touwslager WR, et al. Dissatisfaction after implantation of multifocal intraocular lenses[J]. J Cataract Refract Surg,2011,37(5):859-865. DOI:10.1016/j.jcrs.2010.11.032.
[3]
Hashemi H, Khabazkhoob M, Yazdani K, et al. Distribution of angle kappa measurements with Orbscan II in a population-based survey[J]. J Refract Surg,2010,26(12):966-971. DOI:10.3928/108 1597X-20100114-06.
[4]
Amar Agarwal M F F, Soosan Jacob M F D, Ashok Kumar M, et al. Angle kappa may play important role in success of multifocal IOLs[J]. Ocular Surgery News,2011:18-19.
Karhanová M, Pluhá■ek F, Ml■ák P, et al. The importance of angle kappa evaluation for implantation of diffractive multifocal intraocular lenses using pseudophakic eye model[J]. Acta Ophthalmol,2015,93(2):e123-128. DOI:10.1111/aos.12521.
[8]
Prakash G, Prakash DR, Agarwal A, et al. Predictive factor and kappa angle analysis for visual satisfactions in patients with multifocal IOL implantation[J]. Eye (Lond),2011,25(9):1187-1193. DOI:10.1038/eye.2011.150.
[9]
Karhanová M, Mare?觢ová K, Pluhá■ek F, et al. The importance of angle kappa for centration of multifocal intraocular lenses[J].Cesk Slov Oftalmol,2013,69(2):64-68.
[10]
De Vries NE, Franssen L, Webers CA, et al. Intraocular straylight after implantation of the multifocal AcrySof ReSTOR SA60D3 diffractive intraocular lens[J]. J Cataract Refract Surg,2008,34(6):957-962. DOI:10.1016/j.jcrs.2008.02.016.