COVID-19(4) diabetes(4) reduction(2) decrease(2) cause(2) outcome(2) Practice(2) Diabetic retinopathy(2) Visual(2) visual acuity(2) reduced(2) reduction in(2) COVID-19 pandemic(2) Impact(2) Follow-up(2) retinopathy(2) injection(2) significantly(2) changed(2) Treatment(2) COVID(2) edema(2) Intravitreal injections(2) macular edema(2) recent(2) functional(2) timepoint(2) variant(2) early treatment(2) outcomes(2)