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Diode versus argon-green laser panretinal photocoagulation in proliferative diabetic retinopathy: A randomized study in 44 eyes with a long follow-up time

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A clinical randomized study using argon-green (532 nm) and diode (810 nm) lasers was carried out on 44 eyes (34 patients) affected by proliferative diabetic retinopathy (PDR), with the aim of evaluating the long-term effects of diode panretinal photocoagulation. Of the total 44 eyes, 22 were randomized to argon laser treatment (ALT) and 22 to diode laser treatment (DLT). The mean follow-up time was 25 ± 5 months in the ALT group versus 24 ± 4 montsh in the DLT group. In the ALT group 20 eyes (91 %) showed regression of PDR whereas 2 eyes (9%) deteriorated. In the DLT group regression of neovascularization was observed in 22 eyes (100%). These results show that the long-term efficacy of diode laser PRP in the treatment of PDR is similar to that of argon-green laser PRP.

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Correspondence to Rosario Brancato.

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Bandello, F., Brancato, R., Trabuccbi, G. et al. Diode versus argon-green laser panretinal photocoagulation in proliferative diabetic retinopathy: A randomized study in 44 eyes with a long follow-up time. Graefe's Arch Clin Exp Ophthalmol 231, 491–494 (1993). https://doi.org/10.1007/BF00921112

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  • Public Health
  • Argon
  • Diode Laser
  • Diabetic Retinopathy
  • Laser Treatment