In the prospective monocentric open label trial patients with diabetic macular edema will be treated with intravitreal injections of ranibizumab given for 3 months then with laser grid at month 4. During follow-up a ranibizumab injection will be performed every 2 months in case of best-corrected visual acuity decreased more than 5 letters.
Inclusion Criteria:
Exclusion Criteria: