Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (47): 7139-7144.doi: 10.3969/j.issn.2095-4344.2016.47.021

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Safety and efficacy of implantation of two multifocal intraocular lenses in the treatment of senile cataract: study protocol for a randomized controlled clinical trial

Yu Ping, Wang Qing, Liu Ling-ling
  

  1. Department of Ophthalmology, Affiliated Hospital of Qinghai University, Xining 810001, Qinghai Province, China
  • Received:2016-10-14 Online:2016-11-18 Published:2016-11-18
  • Contact: Yu Ping, Department of Ophthalmology, Qinghai University Affiliated Hospital, Xining 810001, Qinghai Province, China
  • About author:Yu Ping, Attending physician, Department of Ophthalmology, Affiliated Hospital of Qinghai University, Xining 810001, Qinghai Province, China
  • Supported by:

    the Scientific Support Project of Qinghai Province in China

Abstract:

BACKGROUND: Phacoemulsification with intraocular lens (IOL) implantation has become a well-established treatment for senile cataract. The ideal IOL is characterized by good biocompatibility and resolution, with no spherical aberration. The Acri.LISA 366D is a refractive/diffractive multifocal IOL that differs from traditional multifocal IOLs. Its unique optical design can improve the patient's vision and reduce incident ray scattering, glare and halo.
OBJECTIVE: To perform a comparative analysis between the Acri.LISA 366D and the Tecnis Z9001 diffractive multifocal IOL, to determine if there are any differences in biocompatibility and improvement in visual function.
METHODS: A prospective, single-center, randomized, double-blind, parallel-controlled study will be conducted at the Affiliated Hospital of Qinghai University in China. Forty cataract patients aged 50–80 years will be randomly assigned to either the Acri.LISA 366D or Tecnis Z9001 IOL (n=20 per group). This study protocol has been approved by the Medical Ethics Committee of Qinghai University Affiliated Hospital in China (approval No. QHY1107K) and will be performed in accordance with the guidelines of the Declaration of Helsinki, formulated by the World Medical Association. Signed informed consent regarding trial procedure and treatment will be obtained from each patient or their guardians. This trial was registered at ClinicalTrials.gov (NCT02696496).
RESULTS AND CONCLUSION: The primary outcome of the trial is to investigate the biocompatibility of the IOL after implantation. The secondary outcomes include visual acuity, refractive changes and the presence of any complications. Outcome measures will be evaluated at 1, 3, 6, 12 and 24 months after IOL implantation. It is anticipated that the data collected from this trial will provide evidence for IOL selection in senile cataract patients.

Key words: Clinical Trial, Lenses, Intraocular, Lens, Crystalline, Cataract, Aged, Randomized Controlled Trial

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