Post-hoc analysis of Diabetic Retinopathy Clinical Research Network Protocol S study data found worse visual outcomes and development of diabetic macular edema were associated with certain risk factors when panretinal photocoagulation rather than ranibizumab was used as treatment in patients with proliferative diabetic retinopathy.
The same risk factors were not significantly associated when ranibizumab intravitreal injection was used for treatment.
Researchers established two cohorts culled from the Protocol S study group: 328 eyes of patients who completed the 2-year visit and 302 eyes
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