[True-Vista双焦点人工晶状体。欧洲多中心研究的当前结果]

[The True-Vista bifocal intraocular lens. Current results of the European multicenter study].

作者信息

Knorz M C, Seiberth V

机构信息

Universitäts-Augenklinik, Klinikum Mannheim der Universität, Heideberg.

出版信息

Ophthalmologe. 1996 Feb;93(1):17-21.

PMID:8867155

Abstract

In a prospective multicenter study we evaluated vision with the True Vista bifocal IOL. At 12-14 months after operation. 391 patients ("best cases") were available for follow-up. Without (with) correction, 14.4% (37.9%) had a distance acuity of 20/20 or better, 28% (69.6%) had 20/25 or better, 70% (96.9%) had 20/40 or better, and 30% (3.1%) had a distance acuity of less than 20/40. Near acuity without (with) correction was 20/20 or better in 18.7% (57.5%), 20/25 or better in 42.9% (80.8%), 20/40 or better in 84% (97.5%), and less than 20/40 in 16% (2.5%). Our results demonstrate that corrected distance and near acuity with the True Vista bifocal IOL is good. However, due to surgically induced astigmatism and inaccuracies of IOL power calculation, uncorrected acuities are still disappointing. Thus, when implanting bifocal IOLs, careful patient selection, control of astigmatism and IOL power calculation seems crucial.

摘要

在一项前瞻性多中心研究中，我们使用True Vista双焦点人工晶状体评估了视力。术后12至14个月时，有391例患者（“最佳病例”）可供随访。未矫正（矫正后）时，14.4%（37.9%）的患者远视力为20/20或更好，28%（69.6%）为20/25或更好，70%（96.9%）为20/40或更好，30%（3.1%）的患者远视力低于20/40。未矫正（矫正后）时，18.7%（57.5%）的患者近视力为20/20或更好，42.9%（80.8%）为20/25或更好，84%（97.5%）为20/40或更好，16%（2.5%）低于20/40。我们的结果表明，True Vista双焦点人工晶状体矫正后的远视力和近视力良好。然而，由于手术引起的散光和人工晶状体屈光度计算不准确，未矫正的视力仍然令人失望。因此，植入双焦点人工晶状体时，仔细选择患者、控制散光和计算人工晶状体屈光度似乎至关重要。