Pattern reversal visual-evoked response as a prognostic indicator in macular gliosis.
We recorded the preoperative pattern reversal visual-evoked responses in 16 subjects (16 eyes) with macular gliosis who underwent membrane-peeling operations. A postoperative visual improvement of one octave or more was observed in 11 of 16 eyes (68.8%). Preoperatively, ten eyes had peak amplitudes greater than or equal to 2 microV, all 11 eyes had either lowpass or bandpass curve shapes, and ten eyes had recordable responses to 20- or 10-minutes of an arc check sizes. Each of the three preoperative criteria was significantly associated with a postoperative visual improvement of one octave or more (P = .01, .02, and .02, respectively). These results demonstrate that the preoperative pattern reversal visual-evoked response can objectively assess the function of the underlying macula in patients with macular gliosis and, consequently, is helpful in determining which patient would most likely benefit from a membrane-peeling operation.
Mehta
M C
MC
Eye Research Institute, Boston, MA 02114.
Katsumi
O
O
Buzney
S M
SM
Hirose
T
T
D000328:Adult; D000368:Aged; D005074:Evoked Potentials, Visual; D005260:Female; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D005911:Gliosis / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008266:Macula Lutea / Q000503:physiopathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010364:Pattern Recognition, Visual; D011300:Preoperative Care; D011379:Prognosis; D012164:Retinal Diseases / Q000503:physiopathology* / Q000601:surgery; D014792:Visual Acuity; D014821:Vitrectomy