Liu Hui, Li Fang-Fang, Xia Hai-Jun, Zhou Jin
Department of Ophthalmology, Chengdu Aier Eye Hospital, Chengdu 610041, Sichuan Province, China.
Department of Ophthalmology, Chongqing Aier Eye Hospital, Chongqing 400020, China.
Int J Ophthalmol. 2021 Mar 18;14(3):371-377. doi: 10.18240/ijo.2021.03.06. eCollection 2021.
To analyze postoperative clinical results after implantation of trifocal intraocular lenses (IOLs) in highly myopic eyes with different axial lengths (ALs).
This retrospective study describes 61 eyes of 44 patients that were implanted with trifocal diffractive IOLs (AT LISA tri 839MP). Twenty-one eyes (15 patients) were included in the AL<26 mm group, 19 eyes (13 patients) in the AL≥26 mm and <28 mm group, and 21 eyes (16 patients) in the AL≥28 mm group. Postoperative outcomes, including corrected and uncorrected distance visual acuity (UDVA), intermediate and near visual acuity at 167 cd/m luminance, depth of focus at 85 cd/m luminance, and objective optical quality parameters assessed using the Optical Quality Analysis System (OQAS), were compared among the groups at 3mo.
There were no significant differences in the mean UDVA, uncorrected intermediate visual acuity, uncorrected near visual acuity, corrected distance visual acuity, distance-corrected intermediate visual acuity, and distance-corrected near visual acuity (DCNVA) among the three groups (>0.05). Better near and intermediate visual acuity (from -1.5 D to -3.0 D) were noted on the defocus curve of the AL<26 mm group (<0.01 AL≥28 mm group). Significantly higher objective scatter index (OSI) values and lower modulation transfer function (MTF) cut-off values, Strehl ratio (SR), and OQAS values (OVs) were observed in the AL≥28 mm group (<0.01 AL<26 mm group). All OQAS parameters had statistically significant correlations with DCNVA and visual acuity at the vergence of -2.5 D (<0.05 to <0.01).
Implantation of trifocal IOLs provides good short-term visual and refractive outcomes in highly myopic eyes with different ALs. However, the near vision decreases in the extremely myopic eyes at lower luminance, which is associated with the lower objective optical quality in these eyes.
分析不同眼轴长度（AL）的高度近视眼植入三焦点人工晶状体（IOL）后的术后临床结果。
这项回顾性研究描述了44例患者的61只眼，这些眼植入了三焦点衍射IOL（AT LISA tri 839MP）。眼轴长度<26mm组纳入21只眼（15例患者），眼轴长度≥26mm且<28mm组纳入19只眼（13例患者），眼轴长度≥28mm组纳入21只眼（16例患者）。比较3个月时各组的术后结果，包括矫正和未矫正远视力（UDVA）、167cd/m亮度下的中视力和近视力、85cd/m亮度下的焦深，以及使用光学质量分析系统（OQAS）评估的客观光学质量参数。
三组之间的平均UDVA、未矫正中视力、未矫正近视力、矫正远视力、远距矫正中视力和远距矫正近视力（DCNVA）无显著差异（>0.05）。眼轴长度<26mm组的散焦曲线显示更好的近视力和中视力（从-1.5D到-3.0D）（<0.01，眼轴长度≥28mm组）。眼轴长度≥28mm组观察到显著更高的客观散射指数（OSI）值和更低的调制传递函数（MTF）截止值、斯特列尔比（SR）和OQAS值（OVs）（<0.01，眼轴长度<26mm组）。所有OQAS参数与DCNVA以及-2.5D聚散度下的视力均具有统计学显著相关性（<0.05至<0.01）。
植入三焦点IOL在不同眼轴长度的高度近视眼中提供了良好的短期视觉和屈光结果。然而，在低亮度下，极高度近视眼的近视力下降，这与这些眼中较低的客观光学质量有关。
