Retina-Vitreous
2003 , Vol 11 , Num 2
EFFECT OF PANRETINAL PHOTOCOAGULATION ON OCULAR BLOOD FLOW IN PATIENTS WITH DIABETIC RETINOPATHY
1Ondokuz Mayıs Üniversitesi Tıp Fakültesi Göz Hast. A.D.2Ondokuz Mayıs Üniversitesi Tıp Fakültesi Radyodiognostik A.D. Purpose: To evaluate blood-flow parameters in eyes with diabetic retinopathy after panretinal photocoagulation.
Materials and Methods: Hemodynamic parameters were evaluated by color Doppler imaging in 36 eyes with diabetic retinopathy after panretinal photocoagulation and 46 eyes with diabetic retinopathy without treatment. Peak systolic, end-diastolic, and mean arterial velocities were measured in the central retinal artery, short posterior ciliary arteries, central retinal vein and the ophthalmic artery.
Results: No statistically significant differences were found between treated and untreated eyes, but panretinal photocoagulation led to a marked reduction of ocular blood flow velocitiy especially in the central retinal artery and short posterior ciliary arteries.
Conclusion: Despite the lack of statistical difference, our results suggest that argon laser photocoagulation may lead to a decreased flow velocity in the ocular vasculature. Keywords : Diabetic retinopathy, Ocular blood flow, Panretinal photocoagulation