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Validation of a Quasi Real-Time Global Aberrometer: The EyeMapper

机译:准实时全球像差仪的验证:EyeMapper

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摘要

Interest in measuring peripheral refraction rapidly and accurately has been stimulated by increasing evidence that the eye's peripheral refractive state can influence axial growth. In response to this, a new clinical instrument, the EyeMapper, was developed which performs quasi real-time global (central and peripheral) refraction measurements of the human eye.The EyeMapper is an aberrometer comprising a unique deflection system to permit an extremely rapid visual field scan. Refraction measurements are taken from -50° to +50° in 10° steps within 0.45 seconds. Multiple pupil imaging paths through the deflection system provide improved lateral and axial pupil alignment, and by rotating the instrument around its main optical axis, global power maps of the eye can be generated.Using a model eye with a pivoting and translating reflective surface to simulate the peripheral and central retina, the EyeMapper was cross-validated against a conventional aberrometer (COAS-HD, Wavefront Sciences, USA) and an autorefractor (Shin-Nippon NVision K5001, Japan). In addition, the right eyes often participants were measured across the horizontal visual field and in one eye, refraction measurements were performed globally. Overall, the EyeMapper showed good agreement and improved repeatability when compared to the other two instruments.
机译:越来越多的证据表明,眼睛的周边屈光状态会影响轴向生长,因此人们对快速,准确地测量周边屈光的兴趣引起了人们的兴趣。为此,开发了一种新的临床仪器EyeMapper,它可以对人眼进行准实时的全局(中央和周边)屈光度测量.EyeMapper是一种像差计,具有独特的偏转系统,可以实现非常快速的视觉现场扫描。在0.45秒内以10°的步长从-50°到+ 50°进行折射测量。通过偏转系统的多个瞳孔成像路径可改善横向和轴向瞳孔对准,并通过围绕仪器的主光轴旋转仪器,可以生成眼睛的整体功率图。使用具有旋转和平移反射面的模型眼睛进行模拟EyeMapper与传统的像差仪(COAS-HD,美国Wavefront Sciences)和自动验光仪(Shin-Nippon NVision K5001,日本)进行了交叉验证。此外,经常在水平视场范围内测量参与者的右眼,并且在一只眼睛中,整体上进行屈光度测量。总体而言,与其他两种仪器相比,EyeMapper显示出良好的一致性并提高了可重复性。

著录项

  • 来源
    《Ophthalmic technologies XXII》|2012年|p.82090C.1-82090C.7|共7页
  • 会议地点 San Francisco CA(US)
  • 作者单位

    Brien Holden Vision Institute, Level 4 North Wing Rupert Myers Building Gate 14, Barker Street,UNSW Sydney NSW 2052 Australia, +61 29385 7516,School of Optometry and Vision Science, Level 3 North Wing Rupert Myers Building Gate 14, Barker Street, UNSW Sydney NSW 2052 Australia, +61 29385 4639;

    Brien Holden Vision Institute, Level 4 North Wing Rupert Myers Building Gate 14, Barker Street,UNSW Sydney NSW 2052 Australia, +61 29385 7516,School of Optometry and Vision Science, Level 3 North Wing Rupert Myers Building Gate 14, Barker Street, UNSW Sydney NSW 2052 Australia, +61 29385 4639;

    Brien Holden Vision Institute, Level 4 North Wing Rupert Myers Building Gate 14, Barker Street,UNSW Sydney NSW 2052 Australia, +61 29385 7516;

    Brien Holden Vision Institute, Level 4 North Wing Rupert Myers Building Gate 14, Barker Street,UNSW Sydney NSW 2052 Australia, +61 29385 7516,School of Optometry and Vision Science, Level 3 North Wing Rupert Myers Building Gate 14, Barker Street, UNSW Sydney NSW 2052 Australia, +61 29385 4639;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 眼科学;
  • 关键词

    peripheral refraction; aberrations; instruments; validation;

    机译:周边屈光像差仪器;验证;

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