Visual field loss after argon laser panretinal photocoagulation in diabetic retinopathy: full- versus mild-scatter coagulation

Int Ophthalmol. 1998;22(5):313-9. doi: 10.1023/a:1006367029134.


Purpose: The aim of the present study was to prospectively examine the effect of two styles of PRP, full- and mild-scatter on central and peripheral visual field in diabetic patients.

Methods: 40 eyes with preproliferative or early proliferative diabetic retinopathy of 32 patients underwent visual field testing on the C 30-1 and P 30/60-1 program of the Humphrey field analyser before and after argon laser panretinal photocoagulation (PRP). 21 eyes received full- and 19 mild-scatter PRP.

Results: Laser treatment had caused significant reduction of central retinal sensitivity in all eyes with no difference between full- and mild-scatter PRP. Peripheral visual field sensitivity was significantly improved after mild-scatter PRP and was significantly depressed after full-scatter PRP.

Conclusion: Our results suggest, that two treatment produced essentially equal effects on central and different on peripheral visual field.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Diabetic Retinopathy / complications*
  • Diabetic Retinopathy / physiopathology
  • Diabetic Retinopathy / surgery*
  • Female
  • Humans
  • Laser Coagulation* / methods
  • Male
  • Middle Aged
  • Postoperative Period
  • Prospective Studies
  • Retina / radiation effects
  • Vision Disorders / etiology*
  • Vision Disorders / physiopathology
  • Visual Fields*