Diabetic Macular Oedema (DMO) is associated with diabetic retinopathy and may be appeared in any stage of the disease. This condition is one of the main macular diseases, among the age-related macular degeneration (AMD), central retinal vein occlusion (CRVO) and vitreomacular traction (VMT). According to the Greek vitreoretinal company, more than 50.000 people are affected by a macular disease. In particular, 30% of diabetic patients, who have diabetes over 20 years will be affected by DMO. Unless the oedema does not be treated with drugs, these patients will soon have a vision decrease.