Correlation between cup disc ratios and visual field defects in Togolese patients

Background: We have undertaken this study to analyze the correlations existing between Goldmann perimetry and cup disc ratios in Togolese patients less than 45 years old. Methods: Male and female outpatients presenting with cup disc ratio of 0.4 or over underwent Goldmann perimetric examination. Results: There were 120 patients, 60 males and 60 females. Goldmann perimetry was normal in 3% cases. The 62% remaining abnormal cases comprised central and paracentral defects, peripheral depression, nasal steps an tubular fields. These defects were variously correlated to the cup disc ratios. Conclusion: Goldmann perimetry is less used since the introduction of automated perimetry; however it is still helpful in our particular countries. Due to the various correlations between the cup disc ratios and Goldmann perimetric defects, we have to strenghten the follow-up of patients whose first manual perimetry seems to be normal.