1Early Treatment Diabetic Retinopathy Study Research Group:Photocoagulation for diabetic macular edema:early treatment.Diabetic Retinopathy Study Report Number[J].Arch Opthalmol,1985,103:1996.
2Stefansson E,Machener R,de Juan E Jr,et al.Related Articles,Links Retinal oxygenation and laser treatment in patients with diabetic retinopathy[J].Am J Opthalmol,1992,113(1):36-38.
3Gottfredfsdottir MS,Stefansson E,Jo'nasson F,et al.Retinal vasoconstriction after laser treatment for diabetic macular edema[J].Am J Ophthalmol,1993,115:64-67.