Weghaupt H, Pieh S, Skorpik C
Universitätsklinik für Augenheilkunde, Wien.
Wien Med Wochenschr. 1997;147(12-13):298-301.
The development and introduction of multifocal intraocular lenses (MIOL) should provide the patient with a pseudoaccomodation for distance and near acuity without spectacle corrections. For this study two different types of multifocal lenses have been investigated concerning their visual properties. For diffractive MIOL (3M, type 815LE) an uncorrected distance visual acuity of Snellen 0.59 +/- 0.17 was found. The near visual acuity was J 2.4 +/- 0.94 and Snellen Acuity of 0.5 was achieved in a range of defocus of -1.25 D to +4.0 D. For refractive MIOL (Allergan, type Array SSM 26NB) an uncorrected distance visual acuity of Snellen 0.79 +/- 0.17 was found. The near visual acuity was J 2.75 +/- 1.35 and Snellen Acuity of 0.5 was achieved in a range of defocus of -1.0 D to +3.5 D. With this multifocal lenses the patients reached functional results for distance vision as well as with monofocals. Because of the existing pseudo-accommodation the results for near vision lay over of those of monofocals and the need spectacle correction decrease.
多焦点人工晶状体（MIOL）的研发和应用应为患者提供无需眼镜矫正的远近视力伪调节功能。在本研究中，对两种不同类型的多焦点晶状体的视觉特性进行了研究。对于衍射型MIOL（3M，815LE型），未矫正的远视力Snellen为0.59±0.17。近视力为J 2.4±0.94，在-1.25 D至+4.0 D的散焦范围内达到Snellen视力0.5。对于折射型MIOL（爱尔康，Array SSM 26NB型），未矫正的远视力Snellen为0.79±0.17。近视力为J 2.75±1.35，在-1.0 D至+3.5 D的散焦范围内达到Snellen视力0.5。使用这种多焦点晶状体，患者在远视力方面达到了与单焦点晶状体相同的功能效果。由于存在伪调节功能，近视力结果优于单焦点晶状体，对眼镜矫正的需求减少。
