Liao Xuan, Li Ji-Yun, Tan Qing-Qing, Tian Jing, Lin Jia, Lan Chang-Jun
Department of Ophthalmology, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.
Department of Ophthalmology and Optometry, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.
Int J Ophthalmol. 2020 Nov 18;13(11):1727-1732. doi: 10.18240/ijo.2020.11.07. eCollection 2020.
To compare the visual performance of pseudophakic eyes implanted with A1-UV and SN60WF aspheric intraocular lens (IOL), and to investigate the correlations between visual quality parameters and pupil size.
This prospective comparative study included 105 eyes of 90 patients with age-related cataract who underwent uneventful phacoemulsification. The subjects were divided into two groups according to the implanted IOL type. Three months postoperatively, visual acuity and contrast sensitivity were measured, wave-front aberrations were assessed using a KR-1W aberrometer (Topcon), and objective optical quality parameters were performed using an optical quality analysis system-OQAS II (Visiometrics). Independent sample -test and Spearman correlation analysis were used for data analysis.
There were no significant differences found in visual acuity, contrast sensitivity and visual quality parameters between the two groups (>0.05). The measured intraocular spherical aberration (SA) in A1-UV IOL eyes of -0.19±0.05 µm was close to the designed SA value of -0.20 µm. The modulation transfer function cutoff, Strehl ratio and OQAS values were negatively correlated with pupil size in both groups (<0.01).
The subjective and objective visual quality in pseudophakic eyes with A1-UV and SN60WF IOLs are comparable. For aspheric IOL eyes, visual quality decreases with increasing pupil size.
比较植入A1-UV和SN60WF非球面人工晶状体（IOL）的假晶状体眼的视觉性能，并研究视觉质量参数与瞳孔大小之间的相关性。
这项前瞻性比较研究纳入了90例年龄相关性白内障患者的105只眼，这些患者均顺利接受了超声乳化白内障吸除术。根据植入的IOL类型将受试者分为两组。术后3个月，测量视力和对比敏感度，使用KR-1W像差仪（拓普康）评估波前像差，并使用光学质量分析系统-OQAS II（维斯奥梅特里斯）进行客观光学质量参数测量。采用独立样本t检验和Spearman相关性分析进行数据分析。
两组之间在视力、对比敏感度和视觉质量参数方面均未发现显著差异（P>0.05）。A1-UV IOL眼测得的眼内球差（SA）为-0.19±0.05µm，接近设计的SA值-0.20µm。两组的调制传递函数截止值、斯特列尔比和OQAS值均与瞳孔大小呈负相关（P<0.01）。
植入A1-UV和SN60WF IOL的假晶状体眼的主观和客观视觉质量相当。对于非球面IOL眼，视觉质量随瞳孔大小增加而下降。
