Multifocal electroretinogram in myopia.

摘要: Purpose To investigate early changes of retinal function in myopic eyes, patients with various degrees myopia underwent multifocal electroretinography (multifocal ERG). Methods Thirty young (mean age, 26.1 years) were divided into three groups according to the degree refractive error: emmetropia/low, medium, and high myopia. All matched by sex age. subjects had good corrected visual acuities better than 1.0 normal color vision. No other ophthalmoscopic abnormalities except for tessellated fundus existed. Three grouping programs (all-traces, rings, quadrants) used, all-traces waveforms, six-ring four-quadrant waveforms determined from 103 local responses. We studied differences amplitudes latencies waves among their relation error axial length. Results Amplitudes reduced delayed as errors increased. The peripheral areas more groups. Conclusions amplitude latency each wave ERG resulted primarily cone loss, which may occur even when only noted change is fundus.