The pattern-elicited electroretinogram. I. A tool in the early detection of glaucoma?
The pattern-elicited electroretinogram (PERG) was recorded in 75 patients known with glaucoma, each one of them having a normal visual acuity, and compared with the results in normal test subjects. Although there is a great overlap between normal and glaucomatous eyes, a lower average amplitude and a delay in latency is recorded in the case of glaucoma. A correlation was sought between the PERG outcome on the one hand and different glaucomatous parameters (visual field loss, intraocular pressure, cup disc/ratio) on the other; this could only be confirmed for the cup/disc ratio. In beginning glaucoma the PERG is more often disturbed than the VECP.
D000328:Adult; D000368:Aged; D004596:Electroretinography / Q000379:methods*; D005074:Evoked Potentials, Visual; D005901:Glaucoma / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007429:Intraocular Pressure; D008875:Middle Aged; D010775:Photic Stimulation; D011183:Postoperative Complications / Q000175:diagnosis; D011930:Reaction Time; D014129:Trabecular Meshwork / Q000601:surgery