Tian Ying, Jiang Hai-Bo, Jiang Jian, Wen Dan, Xia Xiao-Bo, Song Wei-Tao
Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Medicine (Baltimore). 2017 Jun;96(25):e7294. doi: 10.1097/MD.0000000000007294.
The aim of this study was to investigate the visual quality of the 2 kinds of intraocular lens: Visian implantable collamer lens (ICL) V4 and Visian ICL V4c implantations for high myopia.Twenty cases (20 eyes) with high myopia who received Visian ICL V4 implantation and 18 cases (18 eyes) with high myopia who received Visian ICL V4c implantation in our hospital from April 1, 2014 to November 31, 2016 were enrolled. In 1-month follow-up, near vision, best corrected distant visual acuity (BCVA), uncorrected distant visual acuity (UDVA), and wavefront aberrations were measured, and compensation factor was calculated.Near vision, UDVA, and BCVA showed no significant difference between ICL V4 implantation and ICL V4c implantation (P >.05). However, high-order aberrations and spherical aberrations were higher in ICL V4c implantation than in ICL V4 implantation (P <.05). Low-order aberrations (defocus and astigmatism), coma, and subjective visual quality had no significant difference between ICL V4 implantation and ICL V4c implantation (P >.05).The 2 kinds of ICL Visian ICL V4 and Visian ICL V4c had similar efficacy of visual quality for high myopia. The presence of the central hole of Visian ICL V4c has no significant effect on visual quality.
Visian可植入式角膜接触镜（ICL）V4和Visian ICL V4c植入治疗高度近视的视觉质量。选取2014年4月1日至2016年11月31日在我院接受Visian ICL V4植入的20例（20眼）高度近视患者和接受Visian ICL V4c植入的18例（18眼）高度近视患者。在1个月的随访中，测量近视力、最佳矫正远视力（BCVA）、未矫正远视力（UDVA）和波前像差，并计算补偿因子。ICL V4植入和ICL V4c植入之间的近视力、UDVA和BCVA无显著差异（P>0.05）。然而，ICL V4c植入的高阶像差和球差高于ICL V4植入（P<0.05）。ICL V4植入和ICL V4c植入之间的低阶像差（散焦和散光）、彗差和主观视觉质量无显著差异（P>0.05）。两种ICL，即Visian ICL V4和Visian ICL V4c，对高度近视的视觉质量疗效相似。Visian ICL V4c中央孔的存在对视觉质量无显著影响。
