Vinas Maria, Dorronsoro Carlos, Cortes Daniel, Pascual Daniel, Marcos Susana
Instituto de Óptica, Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain.
Biomed Opt Express. 2015 Feb 24;6(3):948-62. doi: 10.1364/BOE.6.000948. eCollection 2015 Mar 1.
Longitudinal Chromatic Aberration (LCA) influences the optical quality of the eye. However, the reported LCA varies across studies, likely associated to differences in the measurement techniques. We present LCA measured in subjects using wavefront sensing, double-pass retinal images, and psychophysical methods with a custom-developed polychromatic Adaptive Optics system in a wide spectral range (450-950 nm), with control of subjects' natural aberrations. LCA measured psychophysically was significantly higher than that from reflectometric techniques (1.51 D vs 1.00 D in the 488-700 nm range). Ours results indicate that the presence of natural aberrations is not the cause for the discrepancies across techniques.
纵向色差（LCA）会影响眼睛的光学质量。然而，不同研究报告的LCA有所不同，这可能与测量技术的差异有关。我们使用波前传感、双程视网膜图像以及心理物理学方法，通过定制开发的多色自适应光学系统，在宽光谱范围（450 - 950纳米）内测量了受试者的LCA，并对受试者的自然像差进行了控制。通过心理物理学方法测量的LCA显著高于反射测量技术测得的结果（在488 - 700纳米范围内为1.51 D对1.00 D）。我们的结果表明，自然像差的存在并非技术间差异的原因。
