Kanellopoulos Anastasios John, Asimellis George
LaserVision.gr Eye Institute, Athens, Greece ; New York University Medical School, New York, N.Y., USA.
LaserVision.gr Eye Institute, Athens, Greece.
Case Rep Ophthalmol. 2013 Oct 25;4(3):199-209. doi: 10.1159/000356123. eCollection 2013.
BACKGROUND/AIMS: This case report aims to evaluate safety, efficacy and applicability of anterior surface imaging in a patient with forme fruste keratoconus (FFKC) based on a novel multi-spot, multicolor light-emitting-diode (LED) tear film-reflection imaging technology.
A 45-year-old male patient, clinically diagnosed with FFKC, with highly asymmetric manifestation between his eyes, was subjected to the multicolor-spot reflection topography. We investigated elevation and sagittal curvature maps comparatively with the multicolor-spot reflection topographer, a Placido topographer and a Scheimpflug imaging system. For the right eye, steep and flat keratometry values were 41.92 and 41.05 D with the multicolor spot-reflection topographer, 42.30 and 42.08 D with the Placido, and 41.95 and 41.19 D with the Scheimpflug system. For the left eye, steep and flat keratometry values were 41.86 and 41.19 D with the multicolor spot-reflection topographer, 42.06 and 41.66 D with the Placido topographer, and 41.96 and 41.66 D with the Scheimpflug camera. Average repeatability of the keratometry measurements was ±0.35 D for the multicolor spot-reflection topographer, ±0.30 D for the Placido, and ±0.25 D for the Scheimpflug camera. Very good agreement between the instruments was demonstrated on the elevation and curvature maps.
The ease of use and the comparable results offered by the multicolor spot-reflection topographer, in comparison to established Placido and Scheimpflug imaging, as well as the increased predictability that may be offered by the multicolor spot-reflection topographer, may hold promise for wider clinical application, such as screening of young adults for early keratoconus and, in a much wider perspective, potential candidates for laser corneal refractive surgery.
背景/目的：本病例报告旨在基于一种新型的多点、多色发光二极管（LED）泪膜反射成像技术，评估前表面成像在疑似圆锥角膜（FFKC）患者中的安全性、有效性和适用性。
一名45岁男性患者，临床诊断为FFKC，双眼表现高度不对称，接受了多色点反射地形图检查。我们使用多色点反射地形图仪、普拉西多地形图仪和眼前节光学相干断层扫描仪（Scheimpflug）成像系统对隆起和矢状曲率图进行了比较研究。右眼的陡峭和扁平角膜曲率值，多色点反射地形图仪测量结果为41.92和41.05 D，普拉西多地形图仪测量结果为42.30和42.08 D，眼前节光学相干断层扫描仪测量结果为41.95和41.19 D。左眼的陡峭和扁平角膜曲率值，多色点反射地形图仪测量结果为41.86和41.19 D，普拉西多地形图仪测量结果为42.06和41.66 D，眼前节光学相干断层扫描仪测量结果为41.96和41.66 D。角膜曲率测量的平均重复性，多色点反射地形图仪为±0.35 D，普拉西多地形图仪为±0.30 D，眼前节光学相干断层扫描仪为±0.25 D。仪器之间在隆起和曲率图上显示出非常好的一致性。
与成熟的普拉西多和眼前节光学相干断层扫描仪成像相比，多色点反射地形图仪使用方便且结果可比，并且多色点反射地形图仪可能具有更高的可预测性，这有望在更广泛的临床应用中发挥作用，例如对年轻人进行早期圆锥角膜筛查，以及从更广泛的角度来看，筛选激光角膜屈光手术的潜在候选者。
