Clinical Efficiency Of Argon Laser Photocoagulation For Diabetic Retinopathy

Objective: To observe the therapeutic effect of argon laser photocoagulation for the phaseIIIand the phase IV diabetic retinopathy(DR). Methods: According to the result of fundus fluorescence angiography(FFA),pan-retinal photocoagulation (PRP) and part photocoagulation were separately performed on 135 eyes of 86 cases ,among which there were 102 eyes for DR(III) and 33eyes for DR(IV),then the visual acuity ,fundus examinations and FFA was observed in the following-up ,that last for from 3 to 27 months. Results: According to ocular fundus, the therapeutic effect of photocoagulation was found to be better in DR(phaseIII) than that in DR(phase IV). Uc=2.835, p=0.005. According to visual acuity, the therapeutic effect of photocoagulation was found to be better in DR(phaseIII) than that in DR(phase IV). Uc=2.783, p=0.005.According to FFA examination the therapeutic effect of photocoagulation was found to be better in DR(phaseIII) than that in DR(phaseIV). Uc=3.106, p=0.002. Cystoid macular edema (CME) of 4 eyes had completely been absorbed (12.9%), of 22 eyes partially been absorbed (71%) and of 5 eyes had not been changed (16.1%) among the 31eyes with CME after the treatment. Conclusions: Argon laser pan-retinal photocoagulation is an effective method to treat DR..The patients with the DR(III) should be found as early as possible and photocoagulation should be performed as soon as possible in order to prevent DR from the development and to protect visual function.