摘要
目的研究黄斑色素密度与对比敏感度功能之间的关系,探讨黄斑色素对视功能的影响。方法采用异色闪烁光度仪对116例正常香港青年的右眼进行黄斑色素密度测量。挑选黄斑色素密度值超过0.90和低于0.40的受试者,将他们分为高黄斑色素密度组和低黄斑色素密度组。采用VSG系统软件对两组右眼进行空间、时间对比敏感度功能测量。结果116例受试者右眼黄斑色素密度值为0.64±0.30。高密度组在各个空间频率与时间频率下的对比敏感度值都高于低密度组;高、低黄斑色素密度组的条栅视力分别为(33.01±3.35)c/d和(30.83±2.88)c/d;闪光融合频率分别是(37.69±6.82)Hz和(36.24±5.00)Hz。但两组空间、时间对比敏感度功能差异无显著性。结论为了进一步证实黄斑色素与视功能之间的关系,需要在这一方面进行更多的研究。
Objective To investigate the relationship between the level of macular pigment optical density and contrast sensitivity in visual function. Methods The macular pigment optical density (MPOD) was measured in the right eye of 116 adult subjects. Subjects with an MPOD over 0.90 (high MPOD) and less than 0.40 (low MPOD) were invited to participate in spatial and temporal contrast sensitivity measurements. Results The mean MPOD (+SD) was 0.64±0.30 for 116 subjects, The contrast sensitivity under each spatial and temporal frequency was higher for the high MPOD group than that for low MPOD group. Grating acuities were (33.01± 3.35)c/d and (30.83±2.88)c/d for each of the two groups, respectively. Critical flicker frequencies (CFF) were (37.69±6.82)Hz and (36.24±5.00)Hz for the high and low MPOD groups, respectively. But no statistically significant difference was found between the two groups for spatial and temporal contrast sensitivity functions. Conclusion The differences between the high MPOD group and low MPOD group are interesting and further research on the relationship between MPOD and visual function should be conducted.
出处
《眼视光学杂志》
2007年第6期398-401,共4页
Chinese Journal of Optometry & Ophthalmology