简介:DearEditor,IamDr.DavidPPi?erofromtheDepartmentofOptics,PharmacologyandAnatomyoftheUniversityofAlicanteandfromtheDepartmentofOphthalmologyofVithasMedimar(Oftalmar)andVithasVirgendelCarmen(Qvision)hospitalsinSpain.Iwritetodescribeacaseinwhichthevisualacuitydefocuscurves(VADC)andcontrastsensitivitydefocus