Role of electrophysiologic testing in the preoperative evaluation of corneal transplant patients

Research output: Contribution to journalArticle

5 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)788-793
Number of pages6
JournalAnnals of Ophthalmology
Volume16
Issue number8
StatePublished - 1984

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Visual Evoked Potentials
Transplants
Pupil Disorders
Penetrating Keratoplasty
Amblyopia
Vision Disorders
Electrodes
Skin

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 journalArticle

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