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Impressum
Multifocal ERG with the Scanning Laser Ophthalmoscope and fundus controlled perimetry for follow-up in white-dot chorioretinitis
Bültmann S., Martin M., Rohrschneider K.
University Eye Clinic Heidelberg
Introduction: Up to now, there are only few reports of clinical
function testing concerning MFERG with the sacnning laser ophthalmoscope
(SLO) and fundus perimetry for follow-up of macular diseases. With this
casereport we would like to present the clinical advantages of these methods
of functional imaging.
Method: A 25 year old female with white-dot-chorioretinitis was
followed up over 7 weeks with the techniques mentioned above, backed-up
by perimetry, angiography, ganzfeld-ERG as well as biomicroscopic appearance.
Fundus perimetry as well as MFERG-testing (RETIscan) were performed with
the SLO.
Results: With the increasing visual acuity (0.2 to 0.8) a slow
disappearance of relative scotomata accompanied by a relevant increase
of P1-amplitudes in all ring segments analysed could be observed, while
conventional perimetry only initially showed pathology. Ganzfeld-ERG presented
normal values.
Conclusion: Combining both fundus-controlled methods, MFERG and
perimetry on the SLO, allows good corelation of function and morphology
in minor clinical alterations of the macular area. In this patient, it
was only possible to document the slow restitution with these two methods,
whereas conventional clinical techniques failed. An important advantage
lies in the ability of observing fixation during testing.