■在各种视觉功能中,立体敏锐度,或者感知深度的能力,是最复杂的双眼功能。许多出版物讨论了多焦点人工晶状体形成视网膜图像对眩光和对比敏感度的影响。但目前只有少数多焦点人工晶状体患者的双眼视觉测试结果。
■本文旨在回顾在白内障手术中植入多焦点人工晶状体的患者的双眼视觉测试结果。
■本文是基于文献综述和通过PubMed等科学数据库进行的互联网搜索,Scopus,WebofScience,谷歌学者。
■一些报告发现植入单焦点晶状体的患者,当用近似加法测量时,与任何多焦点人工晶状体类型的植入者相比,具有统计学意义的更好的立体视敏度评分。当使用TNO测试进行测量时,与基于衍射的多焦点人工晶状体设计相比,屈光性多焦点人工晶状体具有统计学意义的更好的立体视敏度。立体得分,即使在相同类型的镜头中,Titmus试验明显优于TNO试验。
■立体敏锐度不受多焦点引起的视网膜模糊的影响,因为它是由图像退化的其他原因引起的,例如小的残余屈光不正,非常早期的眼中膜浑浊或干眼。多焦点人工晶状体不会引起比单焦点人工晶状体预期的更多的功能性aniseikonia。由于单侧多焦点人工晶状体植入会损害立体视敏度,因此应尝试双侧植入。
UNASSIGNED: Among various visual functions,
stereoacuity, or the ability to perceive depth, is the most sophisticated binocular function. Many publications discuss the influence of retinal image formation by multifocal intraocular lenses on glare and contrast sensitivity, but only a few present results of testing binocular vision in patients with multifocal intraocular lenses.
UNASSIGNED: This article is designed to
review the results of testing binocular vision in patients with multifocal intraocular lenses implanted in cataract surgery.
UNASSIGNED: This article was performed based on a literature
review and Internet search through scientific databases such as PubMed, Scopus, Web of Science, and Google Scholar.
UNASSIGNED: Some reports found that patients implanted with the monofocal lens, when measured with a near addition, presented statistically significant better stereoacuity scores than those implanted with any of the multifocal intraocular lens types. When the TNO test was used for measurement, statistically significant better stereoacuity was disclosed with the refractive multifocal intraocular lens than with the diffractive-based multifocal intraocular lens design.
Stereoacuity scores, even within the same types of lenses, were significantly better with the Titmus test than with the TNO test.
UNASSIGNED: Stereoacuity is not affected by multifocality-induced retinal blur as it is by other causes of image degradation such as small residual refractive error very early opacification of ocular media or dry eye. Multifocal intraocular lenses do not cause more functional aniseikonia than would be expected with a monofocal intraocular lens. Since stereoacuity is compromised with unilateral multifocal intraocular lens implantation bilateral implantation should be attempted.