Department of Ophthalmology, Affiliated Hospital of Yanbian University, Yanji Jilin, 133-000, China.
Department of Physiology and Pathophysiology, School of Medical Sciences, Yanbian University, Yanji Jlin, 133-002, China.
Sci Rep. 2017 Nov 10;7(1):15247. doi: 10.1038/s41598-017-15245-4.
To investigate wavefront aberrations in the entire eye and in the internal optics (lens) and retinal image qualities according to different lenticular opacity types and densities. Forty-one eyes with nuclear cataract, 33 eyes with cortical cataract, and 29 eyes with posterior subcapsular cataract were examined. In each group, wavefront aberrations in the entire eye and in the internal optics and retinal image quality were measured using a raytracing aberrometer. Eyes with cortical cataracts showed significantly higher coma-like aberrations compared to the other two groups in both entire eye and internal optic aberrations (P = 0.012 and P = 0.007, respectively). Eyes with nuclear cataract had lower spherical-like aberrations than the other two groups in both entire eye and internal optics aberrations (P < 0.001 and P < 0.001, respectively). In the nuclear cataract group, nuclear lens density was negatively correlated with internal spherical aberrations (r = -0.527, P = 0.005). Wavefront technology is useful for objective and quantitative analysis of retinal image quality deterioration in eyes with different early lenticular opacity types and densities. Understanding the wavefront optical properties of different crystalline lens opacities may help ophthalmic surgeons determine the optimal time to perform cataract surgery.
根据不同晶状体混浊类型和密度，研究全眼和眼内（晶状体）波前像差以及视网膜成像质量。
检查了 41 只核性白内障眼、33 只皮质性白内障眼和 29 只后发性白内障眼。在每组中，使用光线追踪像差仪测量全眼和眼内像差以及视网膜图像质量的波前像差。与其他两组相比，皮质性白内障眼在全眼和眼内像差中均表现出更高的彗差像差（P=0.012 和 P=0.007）。核性白内障眼在全眼和眼内像差中的球差像差均低于其他两组（P<0.001 和 P<0.001）。在核性白内障组中，核晶状体密度与眼内球差呈负相关（r=-0.527，P=0.005）。
波前技术可用于分析不同早期晶状体混浊类型和密度的眼中视网膜成像质量下降的客观和定量分析。了解不同晶状体混浊的波前光学特性可能有助于眼科医生确定进行白内障手术的最佳时机。
