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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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Abstract

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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References

  1. 1.

    Brancato R, Pratesi R (1987) Applications of diode laser in ophthalmology. Lasers Light Ophthalmol 1:119–124

  2. 2.

    Brancato R, Pratesi R, Leoni G, Trabucchi G, Vanni U (1989) Histopathology of diode and argon laser in rabbit chorioretina: a comparative study. Invest Ophthalmol Vis Sci 7:1504–1510

  3. 3.

    Brancato R, Bandello F, Trabucchi G, Leoni G, Lattanzio R (1990) Argon and diode laser photocoagulation in proliferative diabetic retinopathy: a preliminary report. Lasers Light Ophthalmol 3:233–237

  4. 4.

    Brancato R, Carassa R, Trabucchi G (1991) Diode laser compared with argon laser for trabeculoplasty. Am J Ophthalmol 112:50–55

  5. 5.

    Carassa R, Trabucchi G, Bettin P, Fiori M, Brancato R (1992) Contact transscleral cyclophotocoagulation (CTCP) with diode laser. Invest Ophthalmol Vis Sci [Suppl] 33:1646

  6. 6.

    Diskin J, Maguire AM, Margherio RR (1992) Choroidal folds induced with diode endolaser. Arch Ophthalmol 110: 754

  7. 7.

    McHugh JDA, Marshall J, Ffytche TJ, Hamilton AM, Raven A (1989) Initial clinical experience using diode laser in the treatment of retinal vascular diseases. Eye 3:516–527

  8. 8.

    Noyori K, Noyori S, Ryutaro O (1990) Clinical trial of diode laser photocoagulation: a preliminary report. Lasers Light Ophthalmol 2:81–87

  9. 9.

    Pratesi R, Brancato R, Trabucchi G (1992) Miniature laser for retinal photocoagulation the self-doubling 532 nm neodymiumyttrium aluminum borate (NYAB) microlaser. Invest Ophthalmol Vis Sci [Suppl] 33:3126

  10. 10.

    Puliafito CA (1990) Semiconductor diode laser photocoagulation in retinal vascular diseases. Laser Surg Med [Suppl] 2:67

  11. 11.

    Puliafito R, Deutsch TF, Holt J (1987) Semiconductor laser endophotocoagulation of the retina. Arch Ophthalmol 207:424–427

  12. 12.

    Smiddy WE (1992) Diode endolaser photocoagulation. Arch Ophthahnol 110:1172–1174

  13. 13.

    Smiddy WE, Hernandez E (1992) Histopathologic results of retinal diode laser photocoagulation in rabbit eyes. Arch Ophthalmol 110:693–698

  14. 14.

    Vogel M, Schafer FP, Stuke M, Muller K, Theuring S, Morawietz A (1989) Animal experiments for the determination of an optimal wavelength for retinal coagulations. Graefe's Arch Clin Exp Ophthalmol 227:277–280

  15. 15.

    Wallow IHL, Sponsel WE, Stevens TS (1991) Clinicopathologic correlation of diode laser burns in monkeys. Arch Ophthahnol 109:648–653

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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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Keywords

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