Higgins K E, Meyers S M, Jaffe M J, Roy M S, de Monasterio F M
Arch Ophthalmol. 1986 Jul;104(7):997-1003. doi: 10.1001/archopht.1986.01050190055039.
Snellen visual acuity and spatial contrast sensitivity measurements were used to monitor changes in foveal vision in two patients undergoing argon laser panretinal photocoagulation (PRP) in both eyes for proliferative diabetic retinopathy. Foveal edema developed in one of the four eyes. The remaining three eyes showed no signs of foveal edema, but developed temporary losses in high spatial frequency contrast sensitivity during the closely spaced PRP treatments. Since Snellen visual acuity remained stable at the prelaser level, these results indicate the need for more sensitive measures of visual resolution to monitor foveal integrity in patients undergoing PRP.
对两名双眼因增殖性糖尿病视网膜病变接受氩激光全视网膜光凝（PRP）治疗的患者，采用Snellen视力和空间对比敏感度测量来监测中央凹视力的变化。四只眼中有一只出现了中央凹水肿。其余三只眼未显示中央凹水肿迹象，但在紧密间隔的PRP治疗期间出现了高空间频率对比敏感度的暂时丧失。由于Snellen视力在激光治疗前水平保持稳定，这些结果表明需要更敏感的视觉分辨率测量方法来监测接受PRP治疗患者的中央凹完整性。
