Ophthalmology in China

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Comparison of visual qualities after the implantation of two different aspherical multifocal intraocular lens

ZHAO Yang1, ZHAO Shi-qiang1, GU Qu-fei2, ZHU Si-quan1   

  1. 1. Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Scienses, Beijing Tongren Hospital, Capital Medical Unibersity, Beijing 100730, China; 2. Beijing Aerospace General Hospital,Beijing 100076,China
  • Received:2015-04-21 Online:2015-11-25 Published:2015-12-03
  • Contact: ZHU Si-quan, Email: siquanzhu@sina.com.cn E-mail:siquanzhu@sina.com.cn


Objective To compare the visual quality after the implantation of the two kinds of aspheric diffractive multifocal intraocular lens (Tecnis ZM A00 and ReSTOR +3.0D). Design Retrospective comparative case series. Participants 78 patients (113 eyes) with senile cataract that underwent phacoemulsification and aspheric diffractive multifocal intraocular lenses implantation in Beijing Tongren Hospital were included. 78 patients (113 eyes) were divided into two groups, Tecnis ZM A00 group (41 patients, 60 eyes) and ReSTOR +3.0D group(37 patients, 53 eyes). Methods The difference of best corrected distance visual acuity (BCDVA), best corrected near visual acuity (BCNVA), best corrected mid-distance visual acuity (BCMVA, 60cm) under light and shade circumstance, defocus testing and pseudo accommodation were compared at 1 and 3 months after the operation. The questionnaire of visual quality was used to observe the patents’ visual condition at 3 months after the operation. Main Outcome Measures BCDVA, BCNVA, BCMVA (60cm) under light and shade circumstance; defocus testing; questionnaire scores. Results Under light circumstance, BCDVA, BCNVA, BCMVA (60 cm) in the Tecnis ZM A00 and ReSTOR +3.0D group was 0.975±0.182 and 0.953±0.133, 0.713±0.234 and 0.621±0.299, 0.262±0.110 and 0.309±0.090 respectively at 3 months after the operation (all P>0.05). Under shade circumstance, BCNVA was 0.283±0.103 and 0.201±0.082 (P<0.05), BCMVA(60 cm) was 0.339±0.097 and 0.367±0.101 (P>0.05) respectively in the two groups at 3 months after the operation. The pseudo accommodation were 1.323±1.033 and 1.301±1.127 in the two groups at 3 months after the operation (P>0.05). There are two peak focus in the two groups at -0.25D, -0.25D and -2.75D, -2.25D respectively in the defocus testing. Conclusion Patients with Tecnis ZM A00 and  ReSTOR +3.0D have better BCDVA, BCNVA and BCMVA (60cm) under light circumstance. Tecnis ZM A00 could provide better BCNVA and BCMVA (60 cm) under shade circumstance.

Key words:  phacoemulsification, multifocal intraocular lens, defocus testing