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Purpose <p>To compare visual function between pseudophakic eyes with enhanced monofocal intraocular lenses (IOLs) and phakic eyes with clear lenses among patients in their 50s, 60s, and 70s.</p> Study design <p>Prospective comparative study.</p> Methods <p>One hundred thirty-eight eyes with enhanced monofocal IOLs (enhanced monofocal group) and 117 phakic eyes with clear lenses (phakic group) among patients in their 50s–70s were enrolled. Distance-corrected visual acuity (VA) at various distances, and photopic and mesopic contrast VA were evaluated at 2&#xa0;months postoperatively and compared between groups.</p> Results <p>In all age categories (50&#xa0;s, 60&#xa0;s, and 70&#xa0;s), mean distance-corrected VA at the distances examined did not differ significantly between the enhanced monofocal and phakic groups. Mean contrast VA tended to be better in the enhanced monofocal group than in the phakic group. The difference was significant for photopic low contrast VA at 5% contrast in participants in their 50s (<i>P&#xa0;</i>=&#xa0;0.002); mesopic contrast VA (<i>P&#xa0;</i>&lt;&#xa0;0.001) in participants in their 60s; and for photopic contrast VA at 10% and 5% contrasts and as well as mesopic contrast VA at 25% and 10% contrasts in participants in their 70s (<i>P&#xa0;</i>≤&#xa0;0.003).</p> Conclusions <p>Among patients in their 50&#xa0;s, 60&#xa0;s, and 70&#xa0;s, the accommodative range did not differ significantly between eyes with enhanced monofocal IOL and phakic eyes with clear lenses. Contrast sensitivity was generally better in eyes with enhanced monofocal IOLs than in phakic eyes, supporting the replacement of clear lenses with enhanced monofocal IOLs in patients of these ages with certain ocular pathologies.</p>

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Age-stratified comparison of visual function between eyes with an enhanced monofocal intraocular lens and phakic eyes

  • 期刊论文

  • 发表日期：

    2026年1月3日

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  • Ken Hayashi,
  • Motoaki Yoshida,
  • Shunsuke Hayashi,
  • Akira Hirata

摘要

Purpose

To compare visual function between pseudophakic eyes with enhanced monofocal intraocular lenses (IOLs) and phakic eyes with clear lenses among patients in their 50s, 60s, and 70s.

Study design

Prospective comparative study.

Methods

One hundred thirty-eight eyes with enhanced monofocal IOLs (enhanced monofocal group) and 117 phakic eyes with clear lenses (phakic group) among patients in their 50s–70s were enrolled. Distance-corrected visual acuity (VA) at various distances, and photopic and mesopic contrast VA were evaluated at 2 months postoperatively and compared between groups.

Results

In all age categories (50 s, 60 s, and 70 s), mean distance-corrected VA at the distances examined did not differ significantly between the enhanced monofocal and phakic groups. Mean contrast VA tended to be better in the enhanced monofocal group than in the phakic group. The difference was significant for photopic low contrast VA at 5% contrast in participants in their 50s (P = 0.002); mesopic contrast VA (P < 0.001) in participants in their 60s; and for photopic contrast VA at 10% and 5% contrasts and as well as mesopic contrast VA at 25% and 10% contrasts in participants in their 70s (P ≤ 0.003).

Conclusions

Among patients in their 50 s, 60 s, and 70 s, the accommodative range did not differ significantly between eyes with enhanced monofocal IOL and phakic eyes with clear lenses. Contrast sensitivity was generally better in eyes with enhanced monofocal IOLs than in phakic eyes, supporting the replacement of clear lenses with enhanced monofocal IOLs in patients of these ages with certain ocular pathologies.