有晶状体眼后房型人工晶状体V4c植入术矫正高度近视的临床效果

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Abstract

Objective: To study the efficacy, safety, and change in visual quality of a phakic posterior chamber implantable collamer lens with centra FLOW (PPC-ICL V4c) for correcting high myopia. Methods: This was a prospective study of 58 eyes of 32 patients who were candidates for PPC-ICL V4c. The following indicators were compared: preoperative and postoperative uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), preoperative aberrations and aberrations 6 months postoperatively, contrast sensitivity, and the Quality of Life Impact of Refractive Correction (QIRC). All patients were followed up for more than 6 months. Data were analyzed using paired t-tests. Results: Preoperative UCVA (LogMAR visual acuity) and UCVA 6 months after surgery was 1.54±0.26 and -0.04±0.06, respectively. Visual acuity 6 months after surgery improved compared to preoperative acuity (t=30.94, P<0.001). Compared to preoperative BCVA, 56 eyes had equal or better BCVA 6 months after surgery, which accounted for 97% of the total number of eyes. There was an increase of 1 row or better for 28 eyes, which accounted for 48% of the total number of eyes. Postoperative higher-order wavefront aberrations, spherical aberrations, coma, and trefoil root mean square (RMS) were 0.292±0.093 μm, -0.030±0.050 μm, 0.096±0.090 μm,and 0.224±0.091 μm, respectively. Total higher-order aberrations increased and coma was reduced, but the differences were not statistically significant. Spherical aberrations were reduced (t=3.87, P=0.001) and trefoil increased (t=-5.47, P<0.001). All contrast sensitivities 6 months after surgery were better than preoperative levels for 3.0, 6.0, 12.0, and 18.0 cycles/degree. There were also significant differences between the photopic 3.0 and 6.0 cycles/degree and mesopic 6 cycles/degree (t=-2.12, P=0.047; t=-2.51,P=0.021; t=-3.27, P=0.004). The QIRC score for patients improved (t=-2.41, P=0.039) after surgery.Conclusions: Implants of PPC-ICL V4c are a safe and effective surgical method for correcting high myopia. All patients are satisfied with the surgery, which can improve visual quality and quality of life.

Key words： phakic intraocular lenses high myopia wavefront aberrations contrast sensitivity visualquality quality of life

Received: 25 March 2016

Corresponding Authors: Qizhi Zhou, Chongqing Aier Ophthalmology Hospital, Chongqing 400020, China(Email: zhouqizhi6931@sina.com)

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	Hongxia Wang
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	Yang Gao

Cite this article:

Hongxia Wang,Qizhi Zhou,Yang Gao. Clinical Effects of a Phakic Posterior Chamber Implantable Collamer Lenswith Centra FLOW for Correcting High Myopia[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2017, 19(8): 476-481.

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https://www.cjoovs.com/EN/ OR https://www.cjoovs.com/EN/Y2017/V19/I8/476

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