title: Prognostic value of initial electroretinogram in central retinal vein obstruction.
abstract: We retrospectively studied the correlation between the initial electroretinogram (ERG) recordings and the final visual acuities (VA) of 47 patients with central retinal vein obstruction (CRVO) after follow-up of more than 1 year. The a- and b-wave amplitudes and the b/a ratio with white flash were significantly larger in patients with good vision (VA > 20/200) than in those with poor vision (VA < or = 20/200). The b/a ratio and b-wave amplitude with white flash showed sensitivity and specificity of more than 78% for visual prognosis. The latest VA was < or = 20/200 in all 20 patients with a subnormal b-wave amplitude and in all 15 with b/a ratio < 1.05. These results suggest that the ERG recorded soon after (CRVO) onset correlates strongly with visual prognosis.
authors.affiliation: Schepens Eye Research Institute, Boston, MA 02114.
authors.forename: Y
authors.initials: Y
authors.lastname: Matsui
authors.forename: O
authors.initials: O
authors.lastname: Katsumi
authors.forename: J W
authors.initials: JW
authors.lastname: McMeel
authors.forename: T
authors.initials: T
authors.lastname: Hirose
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004596:Electroretinography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010775:Photic Stimulation; D011379:Prognosis; D012170:Retinal Vein Occlusion / Q000503:physiopathology*; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D012684:Sensory Thresholds / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology