The African Descent and Glaucoma Evaluation Study (ADAGES): Design and Baseline Data

OBJECTIVE To identify factors accounting for differences in glaucoma onset and rate of progression between individuals of African descent and European descent. DESIGN A prospective, multicenter observational cohort study of 1221 participants of African descent and European descent with no glaucoma (normal), suspected glaucoma, and glaucoma. Six hundred eighty-six patient participants in the African Descent and Glaucoma Evaluation Study will be followed up longitudinally. Four hundred thirty-six participants of European descent from the Diagnostic Innovations in Glaucoma Study (DIGS) were also included. Baseline demographics, visual function (standard automated perimetry, short-wavelength automated perimetry, frequency doubling technology perimetry), optic nerve structure (retina tomography, optical coherence tomography), clinical status, and risk factors were measured. RESULTS Individuals of African descent had (1) thinner corneas (P