Assessment of visual acuity
Diabetic Retinopathy
DIABETIC RETINOPATHY
Visual acuity will be evaluated with an Early Treatment Diabetic Retinopathy Study (ETDRS) chart. For those who are unable to use the ETDRS chart, visual acuity is evaluated with Lea Symbol Chart or Teller Acuity Cards.All decimal visual acuity outcomes will be converted to logarithm of the minimum angle of resolution (logMAR) units for the statistical analyses.