Reversible changes of visual acuity and pattern-electroretinograms after blue-green argon laser photocoagulation of diabetic patients

Visual acuity, color vision, pattern-visual-evoked-potentials (P-VEPs) and pattern-electroretinograms (P-ERGs) were measured in 13 diabetic subjects before, and 24 hours and 5 weeks after blue-green argon laser treatment. As control, the same examinations were performed in 7 normal subjects and 7 di...

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Bibliographic Details
Published inDocumenta ophthalmologica Vol. 72; no. 2; p. 105
Main Authors Gottlob, I, Prskavec, F H, Stelzer, N, Hienert, I, Weghaupt, H, Radda, T M
Format Journal Article
LanguageEnglish
Published Netherlands 01.06.1989
Subjects
Aged
Aged, 80 and over
Argon
Diabetic Retinopathy - physiopathology
Diabetic Retinopathy - surgery
Electroretinography - methods
Evoked Potentials, Visual
Female
Humans
Laser Therapy
Light Coagulation
Male
Middle Aged
Postoperative Period
Visual Acuity
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Summary:Visual acuity, color vision, pattern-visual-evoked-potentials (P-VEPs) and pattern-electroretinograms (P-ERGs) were measured in 13 diabetic subjects before, and 24 hours and 5 weeks after blue-green argon laser treatment. As control, the same examinations were performed in 7 normal subjects and 7 diabetic patients before and after slit lamp examination with the Goldman three mirror contact lens. Visual acuity and P-ERG amplitudes were significantly reduced one day after the laser treatment, while 5 weeks after the laser coagulation, visual acuity and P-ERG amplitudes recovered to pretreatment values. The control group showed no significant changes after slit lamp examination. Since fluorescein angiography revealed no macular changes after laser treatment, the possibility of a reversible functional light damage after blue-green argon laser coagulation (ALC) is discussed.
ISSN:0012-4486
DOI:10.1007/BF00156700