摘要
视觉包括形觉、光觉和色觉,完美视觉应包括理想的视力、对比敏感度、波前像差及正常的暗适应和色觉功能。现有的视力、对比敏感度、波前像差及非球面参数等视觉指标实际值与理想的理论值仍存在较大差距,现有的视觉检查设备如视力表、对比敏感度仪和波前像差仪的精确性也有待进一步提高。目前常规的准分子激光屈光手术术后存在部分视觉质量下降,个体化切削虽是提高术后视觉质量的有效方法,但现有的技术尚未达到十分理想的程度,欲达到完美的视觉仍有很长的路要走。(眼科,2006,15：289-291)
Vision includes form sense, light perception and color perception. Perfect vision means ideal visual acuity, contrast sensitivity, wavefront aberration, normal dark adaptation and color perception. There is great disparity between actual value and theory value of visual acuity, contrast sensitivity, wavefront aberration and aspherical parameter. The accuracy of device used nowadays for visual inspection such as vision chart, contrast sensitivity tester, and wavefront aberration tester still needs to be improved. Visual quality in some patients decreases after regular excimer laser refractive surgery. Customized ablation is effective for improving the visual quality, but the customized ablation technique at present is still not very ideal. So there is still a long way to go to get perfect vision.
出处
《眼科》
CAS
2006年第5期289-291,共3页
Ophthalmology in China
关键词
视觉
对比敏感度
波前像差
准分子激光屈光手术
vision
contrast sensitivity
wavefront aberration
excimer laser refractive surgery
