Functional outcome of branch retinal vein occlusion after photocoagulation with various laser wavelengths--an automated perimetric analysis.
This study highlights the comparative efficacy of three different laser wavelengths--argon green, argon blue-green, and krypton red--for sector photocoagulation in fresh cases of branch retinal vein occlusion. The mean Logarithm of minimal angle of resolution (LogMAR) improved in the argon green and argon blue-green groups but decreased in the krypton red group. Statistical analysis of the automated visual fields in these eyes showed a mean change in corrected pattern standard deviation value, with increase in all three groups--minimal increase in the argon blue-green group and maximal in the krypton red group, suggesting maximum visual field defect in the krypton laser group. To conclude, the green and the blue-green wavelengths gave results that were decidedly superior to those given by krypton red: further, argon blue-green had an edge over the green wavelength.
Tewari
H K
HK
Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi.
Goyal
M
M
Khosla
P K
PK
Kumar
A
A
D005451:Fluorescein Angiography; D006801:Humans; D017075:Laser Coagulation; D011446:Prospective Studies; D012170:Retinal Vein Occlusion / Q000503:physiopathology* / Q000601:surgery*; D016896:Treatment Outcome; D014792:Visual Acuity; D058609:Visual Field Tests / Q000379:methods; D014794:Visual Fields / Q000502:physiology*