“…Gonioscopy in the study of glaucoma is reviewed, especially with reference to aid in diagnosis, indications for surgery, and evaluation in glaucoma surgery.151·185'226, 101 Electroretinography, to compare the clin¬ ical findings of patients with central retinal vein occlusion and simple glaucoma and of patients with pure occlusion and no glau¬ coma, has been used in 30 patients with central retinal vein occlusion. Of these, 16 eyes had simple glaucoma, 16 eyes had no glaucoma.199 Electroretinography was per¬ formed 6 months to 8 years after occlusion.…”