Evaluation of glaucomatous visual field loss with locally condensed grids using fundus-oriented perimetry (FOP)

PURPOSE. We compared detection rates of glaucomatous visual field defects ( VFDs) between a conventional rectangular stimulus grid and locally condense d test point arrangements in morphologically suspicious regions. METHODS. Humphrey Field Analyzer model 630 (HFA I, program 30-2 with a rect angular 6 degrees x 6 degrees grid) was used as the conventional perimetric method. Individual local test-point condensation was realized by fundus-or iented perimetry (FOP) on the Tuebingen Computer Campimeter (TCC). RESULTS. Of a total of 66 glaucoma patients, or suspected sufferers, 23 sho wed normal findings and 27 showed pathological findings with both methods. In 15 cases we found normal visual fields in HFA 30-2, whereas FOP revealed early glaucomatous functional damage. Only one case showed pathological HF A results, while FOP was normal. Detection rates of VFDs significantly diff ered between the two methods (p < 0.001; sign test). CONCLUSIONS. FOP, using individually condensed test grids, significantly in creases detection rates of glaucomatous VFDs in morphologically suspicuous areas compared with a conventional HFA 30-2 technique using equidistant rec tangular (6 degrees x 6 degrees) test point arrangements.