Choi Se Hyun, Lee Hyo Kyung, Yoon Chang Ho, Kim Mee Kum
Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Republic of Korea.
Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul, Republic of Korea.
J Ophthalmol. 2019 Mar 4;2019:2163809. doi: 10.1155/2019/2163809. eCollection 2019.
To investigate visual performances after a unilateral or bilateral implantation of enlarged depth-of-focus intraocular lens in patients with cataract.
In this prospective study, uneventful phacoemulsification and TECNIS® Symfony intraocular lens implantation were performed in 20 eyes of 17 patients. At postoperative 1, 4, and 12 weeks, the logarithm of the minimal angle of resolution visual acuity at far, intermediate, and near distances and the spherical equivalent in manifest refraction and automated refraction were measured. A questionnaire was used to investigate glare, spectacle dependency, and satisfaction at 12 weeks. The mean numerical error and mean absolute error were compared between intraocular lens formulas to assess the best-fit formula.
The logarithm of the minimal angle of resolution visual acuity significantly improved to 0.02 at far, 0.02 at intermediate, and 0.27 at near distances at 12 weeks ( < 0.05). Spherical equivalent was -0.79 D on automated refraction and was significantly lower than -0.26 D measured on manifest refraction. Patients' satisfaction score was 9.06, 8.94, and 6.65 for far, intermediate, and near distances, respectively. Near glasses were required in 5 patients and 2 patients complained of photic phenomenon. Visual performances were not significantly different between bilateral and unilateral implanted patients. No patients reported bilateral imbalance due to unilateral surgery. The mean numerical error was closest to 0 D using the Barrett Universal II formula. The mean absolute error was not significantly different between these formulas.
Unilateral or bilateral implantation of the enlarged depth-of-focus intraocular lens seems to be equally effective in improving visual performances in patients with cataract.
研究白内障患者单眼或双眼植入扩大景深人工晶状体后的视觉性能。
在这项前瞻性研究中，对17例患者的20只眼进行了顺利的超声乳化白内障吸除术及TECNIS® Symfony人工晶状体植入术。在术后1周、4周和12周，测量远、中、近距离的最小分辨角视力的对数、明显验光和自动验光中的等效球镜度。在12周时使用问卷调查眩光、对眼镜的依赖程度和满意度。比较人工晶状体计算公式之间的平均数值误差和平均绝对误差，以评估最佳拟合公式。
12周时，远、中、近距离的最小分辨角视力对数显著提高，分别为0.02、0.02和0.27（<0.05）。自动验光的等效球镜度为-0.79D，显著低于明显验光测量的-0.26D。患者在远、中、近距离的满意度评分分别为9.06、8.94和6.65。5例患者需要近用眼镜，2例患者抱怨有畏光现象。双眼和单眼植入患者的视觉性能无显著差异。没有患者报告因单侧手术导致双眼不平衡。使用Barrett Universal II公式时平均数值误差最接近0D。这些公式之间的平均绝对误差无显著差异。
单眼或双眼植入扩大景深人工晶状体在改善白内障患者的视觉性能方面似乎同样有效。
