Lian Huifang, Ma Weisong, Wei Qiuhong, Yuan Xiaoyong
Huifang Lian, Department of Ophthalmology, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, P.R. China. Tianjin Eye Hospital, Tianjin Eye Institute, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin, 300020, P.R. China, Baoding First Central Hospital, Hebei, Baoding 071000, P. R. China.
Weisong Ma, Department of Orthopaedics, Baoding First Central Hospital, Hebei, Baoding First Central Hospital, Hebei, Baoding 071000, P. R. China.
Pak J Med Sci. 2020 Nov-Dec;36(7):1607-1612. doi: 10.12669/pjms.36.7.3364.
To compare early subjective and objective vision quality of postoperative patients undergoing phacoemulsification cataract surgery combined with implantation of refractive segmental multifocal intraocular lens (MIOL) SBL-3 and apodized diffractive MIOL SN6AD1.
As a prospective study, it enrolled 53 patients (53 eyes) to undergo phacoemulsification cataract surgery combined with MIOL implantation. According to differences in MIOL implanted, patients were divided into a SBL-3 group (25 eyes) and a SN6AD1 group (28 eyes). Ophthalmological evaluation included uncorrected (UDVA) and corrected (CDVA) distance visual acuities, uncorrected intermediate (UIVA) and near (UNVA) visual acuities, distance-corrected intermediate (DCIVA) and near (DCNVA)visual acuities and corrected near(CNVA) visual acuity, contrast sensitivity, modulation transfer function (MTF) and high order aberration (4 mm pupil diameter) at three months postoperatively. Moreover, a questionnaire survey was carried out to assess near spectacle independence, patient satisfaction and symptoms of visual disturbance.
At three months after surgery, UIVA and UNVA in the SBL-3 group are statistically significantly superior to those of the SN6AD1 group (P>0.05). There was statistical difference in contrast sensitivity at four spatial frequencies (3, 6, 12, 18cycles/degree) under mesopic conditions and mesopic conditions with glare (P>0.05). The total ocular high order aberration, coma and trefoil were statistically significantly larger in the SBL-3 group than in the SN6AD1 group with 4.0 mm pupil diameters (P>0.05). Statistical differences were found in the MTF at spatial frequencies of 5, 10 and 15 cycles/degree between the groups. There were no significant differences in spectacle independence, patient satisfaction and visual disturbance between the groups (P>0.05).
Both the two multifocal intraocular lens provided an excellent level of quality of vision three months postoperatively. However, the application effect of SBL-3 MIOL is superior to that of SN6AD1 MIOL as far as intermediate vision, near vision and contrast sensitivity are concerned.
比较接受白内障超声乳化手术联合植入折射型多焦点人工晶状体（MIOL）SBL-3和变迹衍射型MIOL SN6AD1的术后患者的早期主观和客观视觉质量。
作为一项前瞻性研究，纳入53例患者（53只眼）接受白内障超声乳化手术联合MIOL植入。根据植入MIOL的不同，将患者分为SBL-3组（25只眼）和SN6AD1组（28只眼）。眼科评估包括未矫正（UDVA）和矫正（CDVA）远视力、未矫正中视力（UIVA）和近视力（UNVA）、远矫正中视力（DCIVA）和近视力（DCNVA）以及矫正近视力（CNVA）、对比敏感度、调制传递函数（MTF）和术后三个月时4毫米瞳孔直径下的高阶像差。此外，进行问卷调查以评估近视力脱镜率、患者满意度和视觉干扰症状。
术后三个月时，SBL-3组的UIVA和UNVA在统计学上显著优于SN6AD1组（P>0.05）。在中度照明条件和有眩光的中度照明条件下，四个空间频率（3、6、12、18周期/度）的对比敏感度存在统计学差异（P>0.05）。4.0毫米瞳孔直径时，SBL-3组的总眼高阶像差、彗差和三叶草像差在统计学上显著大于SN6AD1组（P>0.05）。两组之间在5、10和15周期/度空间频率的MTF上存在统计学差异。两组在脱镜率、患者满意度和视觉干扰方面无显著差异（P>0.05）。
两种多焦点人工晶状体在术后三个月均提供了优异的视觉质量水平。然而，就中视力、近视力和对比敏感度而言，SBL-3 MIOL的应用效果优于SN6AD1 MIOL。
