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Functional outcome of branch retinal vein occlusion after photocoagulation with various laser wavelengths ‐ an automated perimetric analysis
Author(s) -
Tewari H. K.,
Goyal M.,
Khosla P. K.,
Kumar A.
Publication year - 1993
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1993.tb04656.x
Subject(s) - krypton , argon , branch retinal vein occlusion , wavelength , green laser , laser , ophthalmology , occlusion , medicine , retinal , optics , chemistry , surgery , physics , macular edema , organic chemistry
. 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.