Abstract
We performed preoperative skin electrode bright-flash ERG and VEP testing on 32 patients undergoing elective penetrating keratoplasty. Twenty-six patients had unilaterally decreased vision and six had bilateral visual impairment. By combining our quantitative electroretinogram (ERG) and qualitative visual evoked potential (VEP) results with clinical findings, we were able to predict visual outcome in 92% of cases. Our findings suggest that (1) bright-flash ERG and VEP testing are useful adjunct studies to clinical and ultrasound findings in patients with media opacities, (2) comparison of a and b wave amplitudes with the fellow eye may yield prognostic information, (3) a normal ERG and VEP in the presence of an equivocal afferent pupillary defect may signal a good visual prognosis, and (4) ERG and VEP are not reliably predictive in patients with media opacity and amblyopia or macular disease.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 788-793 |
| Number of pages | 6 |
| Journal | Annals of Ophthalmology |
| Volume | 16 |
| Issue number | 8 |
| State | Published - 1984 |
Fingerprint
ASJC Scopus subject areas
- Medicine(all)
Cite this
Role of electrophysiologic testing in the preoperative evaluation of corneal transplant patients. / Wendel, R. T.; Mannis, Mark J; Keltner, John L.
In: Annals of Ophthalmology, Vol. 16, No. 8, 1984, p. 788-793.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Role of electrophysiologic testing in the preoperative evaluation of corneal transplant patients
AU - Wendel, R. T.
AU - Mannis, Mark J
AU - Keltner, John L
PY - 1984
Y1 - 1984
N2 - We performed preoperative skin electrode bright-flash ERG and VEP testing on 32 patients undergoing elective penetrating keratoplasty. Twenty-six patients had unilaterally decreased vision and six had bilateral visual impairment. By combining our quantitative electroretinogram (ERG) and qualitative visual evoked potential (VEP) results with clinical findings, we were able to predict visual outcome in 92% of cases. Our findings suggest that (1) bright-flash ERG and VEP testing are useful adjunct studies to clinical and ultrasound findings in patients with media opacities, (2) comparison of a and b wave amplitudes with the fellow eye may yield prognostic information, (3) a normal ERG and VEP in the presence of an equivocal afferent pupillary defect may signal a good visual prognosis, and (4) ERG and VEP are not reliably predictive in patients with media opacity and amblyopia or macular disease.
AB - We performed preoperative skin electrode bright-flash ERG and VEP testing on 32 patients undergoing elective penetrating keratoplasty. Twenty-six patients had unilaterally decreased vision and six had bilateral visual impairment. By combining our quantitative electroretinogram (ERG) and qualitative visual evoked potential (VEP) results with clinical findings, we were able to predict visual outcome in 92% of cases. Our findings suggest that (1) bright-flash ERG and VEP testing are useful adjunct studies to clinical and ultrasound findings in patients with media opacities, (2) comparison of a and b wave amplitudes with the fellow eye may yield prognostic information, (3) a normal ERG and VEP in the presence of an equivocal afferent pupillary defect may signal a good visual prognosis, and (4) ERG and VEP are not reliably predictive in patients with media opacity and amblyopia or macular disease.
UR - http://www.scopus.com/inward/record.url?scp=0021219608&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0021219608&partnerID=8YFLogxK
M3 - Article
C2 - 6388458
AN - SCOPUS:0021219608
VL - 16
SP - 788
EP - 793
JO - Annals of Ophthalmology
JF - Annals of Ophthalmology
SN - 0003-4886
IS - 8
ER -