Background/objectives

To assess the influence of patient age on visual outcomes in eyes with diffractive multifocal intraocular lenses (IOLs)

Subjects/methods

Based on age, we classified eyes with diffractive multifocal IOL into four groups: u50 (under 50 years old), 50s (50–59 years), 60s, and 70s. Corrected distance (CD), distance-corrected near (DCN) visual acuity (VA), and defocus curve were measured postoperatively. Using an “area-of-focus” metric, the distant, intermediate, and near area-of-focus (AoF) were also measured. These postoperative results were compared between the age groups.

Results

At 3 months after surgery, the CDVA in the u50, 50s, 60s, and 70s groups were −0.18, −0.16, −0.14, and −0.10 logMAR, respectively. The 70s CDVA was significantly worse than the u50 and 50s groups (P = 0.002, P = 0.049). The DCNVA in the u50, 50s, 60s, and 70s were 0.01, 0.03, 0.03, and 0.08 logMAR. DCNVA in the 70s group was significantly worse than that in the u50 and 60s groups (P = 0.008 and P = 0.019, respectively). The near AoF was smaller in the 70s than in the u50 and 50s groups (P = 0.040, P = 0.047). In both the intermediate and distant AoFs, there was no significant difference between the four age groups. A steep decline in near AoF was observed in patients over 60 years of age.

Conclusions

The CDVA, DCNVA, and near AoF declined with patient age in eyes with diffractive multifocal IOL. The near AoF showed a drastic decline over 60 years.

中文翻译：

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衍射多焦点人工晶状体眼与年龄相关的视力结果

背景/目标

评估患者年龄对衍射多焦点人工晶状体 (IOL) 眼视力结果的影响

主题/方法

根据年龄，我们将具有衍射多焦点 IOL 的眼睛分为四组：u50（50 岁以下）、50s（50-59 岁）、60s 和 70s。术后测量矫正距离（CD）、近距离矫正（DCN）视力（VA）和散焦曲线。使用“焦点区域”指标，还测量了远、中和近焦点区域 (AoF)。这些术后结果在不同年龄组之间进行了比较。

结果

术后3个月，50岁、50岁、60岁和70岁组的CDVA分别为-0.18、-0.16、-0.14和-0.10 logMAR。70 岁 CDVA 显着低于 50 岁和 50 岁组（P  = 0.002，P  = 0.049）。u50、50s、60s 和 70s 的 DCNVA 分别为 0.01、0.03、0.03 和 0.08 logMAR。70 岁组的 DCNVA 明显差于 50 岁和 60 岁组（分别为P  = 0.008 和P  = 0.019）。70 年代的近 AoF 小于 u50 和 50 年代组（P  = 0.040，P = 0.047）。在中间和远距离 AoF 中，四个年龄组之间没有显着差异。在 60 岁以上的患者中观察到近 AoF 急剧下降。

结论

衍射多焦点 IOL 眼中的 CDVA、DCNVA 和近 AoF 随着患者年龄的增长而下降。近 AoF 在 60 年间急剧下降。