Perlman I, Gdal-On M, Miller B, Zonis S
Br J Ophthalmol. 1985 Apr;69(4):240-6. doi: 10.1136/bjo.69.4.240.
Electroretinographic (ERG) responses were measured in diabetic patients before, during, and after panretinal photocoagulation treatment with argon laser. The laser applications reduced considerably the amplitudes of the a and b waves of the ERG. Moreover, the relationship between the amplitude of the b wave and that of the a wave was severely affected, resulting in ERG responses of abnormal pattern. The b waves were smaller than expected from the a waves. These findings indicated that the photocoagulation treatment not only destroyed the retinal areas directly illuminated by the laser beam, but also affected the functional integrity of adjacent areas. These additional effects resulted in subnormal signal transmission from the photoreceptors to the proximal retina.
对糖尿病患者在氩激光全视网膜光凝治疗前、治疗期间和治疗后进行了视网膜电图（ERG）反应测量。激光照射使ERG的a波和b波振幅大幅降低。此外，b波振幅与a波振幅之间的关系受到严重影响，导致ERG反应模式异常。b波比根据a波预期的要小。这些发现表明，光凝治疗不仅破坏了激光束直接照射的视网膜区域，还影响了相邻区域的功能完整性。这些额外的影响导致从光感受器到视网膜近端的信号传递低于正常水平。
