[Computer perimetry of glaucomatous visual field defects at different stimulus sizes (author's transl)].
The influence of stimulus size in computer perimetry of central visual field defects was investigated in 30 glaucomatous eyes of 30 patients. 12 eyes had been studied utilizing stimulus size 1 and 3, 18 eyes with stimulus size 3 and 5 at the computer perimeter Octopus (program 31). Using large test targets small scotomata can be overlooked and identified field defects appear smaller and less deep. To evaluate this well-known phenomenon quantitatively by computerized perimetry was the aim of the present study. The mean threshold values in the diseased areas of the glaucomatous fields were about 6--10 db higher with stimulus size 3 than 1 and again 6--10 dB higher with stimulus 5 in comparison to 3. The clinical significance of these findings is discussed for different types of perimetry.
D003201:Computers; D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D012607:Scotoma / Q000175:diagnosis; D012684:Sensory Thresholds; D012858:Size Perception; D058609:Visual Field Tests / Q000295:instrumentation*; D014794:Visual Fields
Die computerperimetrische Darstellung glaukomatöser Gesichtsfelddefekte in Abhängigkeit von der Stimulusgrösse.