ETDRS visual acuity chart
Early Treatment of Diabetic Retinopathy Study visual acuity chart (physical object)
physical object
Supplier: international · SCTID 400914004
Also known as (4)
- ETDRS chart
- Early Treatment Diabetic Retinopathy Study chart
- Early Treatment of Diabetic Retinopathy Study (ETDRS) visual acuity chart
- Early Treatment of Diabetic Retinopathy Study visual acuity chart