Kenneth Korth

Learn More
The dimensions of the foveal avascular zone (FAZ) were measured in fluorescein angiograms from 36 diabetic patients and 20 nondiabetic controls. The median values for longest diameter, mean diameter, and circumference were significantly greater in the diabetic group than in the control group. Longest diameters greater than 1.0 mm were found almost(More)
The results of Farnsworth-Munsell 100-hue, visual acuity, and visual field testing were compared with the severity of retinopathy in a group of 90 diabetic patients. The patients showed significantly higher than expected Farnsworth-Munsell 100-hue scores, with a tritanlike axis, compared with published age norms for nondiabetic individuals. The magnitude of(More)
The oscillatory potential (OP) amplitudes of the electroretinogram (ERG) were determined in a group of 85 diabetic patients entering the Early Treatment Diabetic Retinopathy Study (ETDRS). The rate of progression among nonphotocoagulated eyes to the Diabetic Retinopathy Study high-risk characteristics (DRS-HRC) during a ten- to 40-month follow-up period was(More)
A 4.3-kbp portion of the genome from the Chlorella virus, PBCV-1, has been cloned and sequenced. Minimally, five open reading frames (ORFs) were identified on this fragment. Transcriptional analysis indicates that each ORF encodes complex patterns of RNA. The total length of transcribed RNA exceeds that of the ORF indicating either post-transcriptional(More)
Clipping of the testicular veins in varicocele in principle follows open surgical treatment modalities such as the Palomo and Bernardi operations by disrupting venous reflux of the testicular veins. Thus, success rates of laparoscopic varicocelectomy range around 85% as well. As a less invasive means of treatment, retrograde (interventional) sclerotherapy(More)
The indication for and the technique of the percutaneous operation on strictures at the ureteropelvic junction are reported on 120 patients. The results of evaluation of 66 followed-up cases are presented. The new method proves to be superior to open surgery in secondary (acquired) stenoses with a success rate of 89 per cent, whereas in congenital stenosis(More)
Chloroplast DNA was isolated and cloned from Chlorella, strain N1a, exsymbiotic with Paramecium bursaria. BamHI, SalI, SstI, KpnI and XhoI restriction fragments of the DNA were assembled into a circular map. The genome consists of approximately 120 kbp of DNA, has a G/C content of 38%, and contains only a single copy of the rRNA cistron. The rRNA cistron is(More)
After 2 1/2 years experience with percutaneous surgery on 400 kidneys the limits of this new form of endourology are outlined. These are high ureteral stones which can be visualized only by using the flexible fiberscope and the staghorn stones branched into many calyces. The operating technique and the results are discussed. New frontiers of percutaneous(More)
Endoscopic incision of ureteral strictures has become an important component of the urologic armamentarium. Despite different techniques and stenting times applied for the procedures, the rates of long-term favorable outcomes have proved to range consistently from 72% to 89% for both secondary and primary hydronephrosis. Cold-knife incision combined with 3(More)
The indication for and technique of the percutaneous operation of strictures at the ureteropelvic junction in 117 patients are discussed. The results in 66 followed up cases are presented in detail. The new method was found superior to open surgery in cases of secondary (acquired) stenoses and a success rate of 89% can be expected. The results of its use(More)