Interpretation of fields

• 1. INTERPRETATION FIELDSOF

2. APPROACH 1Check patient and test data2Obtain general impression3Observe defects and defect curve4Review statisticsPATIENT DATAGREY SCALECOMPARISONS TDNPTEST DATAVALUES RAW DATABABIES CURVECORRECTED COMPARISONS PDNPPROBABILITY TDPPGLOBAL INDICESCORRECTEDD PROBABILITY PDPP 3. WANDER What was done? Accuracy (Reliability) Normal or abnormal Defect pattern Evaluate compatible disease Review 4. PATIENT DATAEXAMINATION DATA NameProgramme Age/sexStrategyStage/ PhaseTest target/ duration ( Goldmann size III )Background illumination ( 31.5 apostilb ) Eye Pupil size V/A with refractive status 5. RELIABILITY Fixation loss False positive False negative Test duration Question / repetition 6. FALSE POSITIVESFALSE NEGATIVES 7. PITFALLS Performing perimetry Data entry Pupil size Refractive error Recognising artefacts Fatigue effect Reliability Co existing ocular morbidity Learning curve 8. GREY SCALE 9. PATIENTS RETINAL SENSITIVITYNORMAL RETINAL SENSITIVITYDIFFERENCEHUMPHREYOCTOPUSTOTAL DEVIATION NUMERICAL PLOTCOMPARISON 10. PROBABILITY PLOT 11. ELIMINATING GENERALISED DEPRESSION 12. ELIMINATING GENERALISED DEPRESSION OCTOPUS CORRECTED COMPARISONSHUMPHREY PATTERN DEVIATION NUMERICAL PLOT 13. BEBIE CURVE CO valuesRanking 14. GLAUCOMA HEMIFIELD TESTRESULTS Outside normal limits p