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Abstract #6720 Published in IGR 4-1
In kinetic perimetry high refractive errors also influence the isopter position outside the central 30 degrees
Niederhauser S; Mojon DSKlinische Monatsblätter für Augenheilkunde 2002; 219: 201-205
BACKGROUND: In kinetic perimetry, refractive errors are usually only corrected within the central 30° of the visual field. In this study, the authors determined whether refractive errors have an influence on the peripheral visual field. PATIENTS AND METHODS: The peripheral visual field was determined with and without contact lens correction always by the same examiner in 58 myopic in 30 hyperopic eyes (range of refractive errors -25 D to +17.25 D). If the average of an isopter position determined without contact lens was outside its 95% confidence interval, a significant influence of the corresponding refractive error was postulated. STUDY DESIGN: Experimental, clinical study. RESULTS: In uncorrected myopias > 11 D and uncorrected hyperopias > 9 D, the authors observed a significant inward displacement of the I4e isopter. In uncorrected myopias > 18 D and uncorrected hyperopias > 13 D, the authors observed a significant inwards displacement of the I3e isopter. No influence of refractive errors could be found on the V4e isopter. CONCLUSIONS: In myopias > 11 D and hyperopias > 9 D, kinetic perimetry of the peripheral visual field should only be performed after correcting the refractive error with a contact lens. No refractive correction is needed if only the boundaries are determined.LA: German
Dr. S. Niederhauser, Abteilung fur Strabologie und Neuroophthalmologie, Kantonsspital, St Gallen, Switzerland
Classification:
6.6.1 Conventional manual (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
