Sight Testing and Refraction

Logmar Charts | LogMAR 4m ETDRS Original Chart 1

LogMAR 4m ETDRS Original Chart 1

LogMAR 4m ETDRS Original Chart 1

  • Will fit illuminated cabinets SDT-392-LSV and SDT-396-LPV
  • Designed for use in clinical studies and low vision evaluations where accurate, repeatable visual acuity measurements are required.
  • The lines are of equal difficulty and geometrical Progressions, in letter size, from line to line.