Objective: To investigate the curative effect of the postoperative retinal laser photocoagulation and calcium
dobesilate in the treatment of diabetic retinopathy. Methods: Selected 96 patients, 175 eyes, randomly divided
into control group (48 cases, 86 eyes) and study group (48 cases, 89 eyes). Two groups were all given retinal laser
photocoagulation treatment, while the study group continued to receive calcium dobesilate for 12 weeks after
treatment. After 12 weeks, observed the eyesight, change of blood rheology of the two groups. Results: After
the treatment, the patients with vision >1.0 in the study group were significantly more than the control group (χ2 =6.779, P=0.009), in the vision range of ≤0.4, 0.4~0.6, 0.7~1.0, the difference between the two groups was
(χ2 =0.003, P=0.955), (χ2 =1.640, P=0.200), (χ2=2.148, P=0.143), respectively. After treatment, plasma viscosity,
erythrocyte deposited, erythrocyte deformation index, fibrinogen in the study group were better than those in the
control group (P<0.05). The total effectiveness in the study group was 89.9%, in the control group was 75.6%, the
difference was statistically significant (χ2=6.302, P=0.012). Conclusion: The whole retinal laser photocoagulation
and postoperative application of calcium dobesilate in treating the diabetic retinopathy can effectively improve
eyesight and clinical curative effect, which may be associated with improving blood rheology.