[Electrophysiologic studies before and after laser panphotocoagulation in diabetic retinopathy. I. Early results].
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Biomedical subjects
Publications and source records attributed to U Oszczyk.
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Examined were 91 eyes with non-proliferative and proliferative retinopathy with coexisting maculopathy in 51 patients in whom segmental or retinal pan-photocoagulation were performed. The period of observation--3 to 4.5 years. Stabilization of the pathological process was observed in 37.3 p.c. of cases, 54.9 p.c. of patients showed further deterioration and 7.6 p.c. loss of vision. The most frequent cause of deterioration was the progression of the macular lesions (72 p.c.), a smaller number of cases (28 p.c.) was due to other changes.
Fifty two patients (53 eyes) with retinal detachment were operated by Schepens' method with the intrascleral silicone implantation technique, differing from the classical Schepens' method particularly in cerclage operations. The tightening band nearly along its total course (except of the rectus muscles) runs intrasclerally. The authors achieved an anatomical reapposition in 79% of operated cases.
The authors presented results of 346 cataract extraction with IOL implantation--in 184 eyes anterior and in 162 posterior chamber. The follow-up ranged from 3 months to 6 years (mean 1.6 year). In 80.6% of cases, visual acuity after surgery was 0.6-1.0. Corneal astigmatismus 2.5-5.0 D was found in 31.2% of the eyes. The authors analysed early and late complications, taking into account the differences between anterior and posterior chamber IOLs implantation.
Of 346 cataract extractions with IOLs implantation (184 anterior and 162 posterior chamber) in 98 eyes iris complications were observed. They were: pigment dispersion syndrome and iris-tuck-syndrome, the latter caused by the pressure of the haptic part of the lens. In our material these complications were observed more often after posterior chamber IOLs than in anterior ones. However, the consequences of the complications were more serious and had worse prognosis in anterior chamber IOLs. The authors compared their results with literature.