Web-Based Grading of Compressed Stereoscopic Digital Photography versus Standard Slide Film Photography for the Diagnosis of Diabetic Retinopathy

Monoscopic versus Stereoscopic Retinal Photography for Grading Diabetic Retinopathy Severity

“…However, there is no stereo effect and the reader does not have the insurance of two images to choose from. In their study of digital imaging, Rudnisky et al 31 chose stereo photography only for views of the disc and macula (ETDRS fields 1 and 2). They used monoscopic photography of the other five (peripheral) fields.…”

Comparison of Digital and Film Grading of Diabetic Retinopathy Severity in the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Study

“…24,[26][27][28][29] While some previous studies used the full ETDRS 7SF (7 standard field) imaging procedure, 27,29 others modified it by reducing the number of 30°fields or substituting wide-angle fields, switching to monochrome rather than color, dispensing with stereoscopic effect (in peripheral fields, or entirely), and/or using nonmydriatic (via dark adaptation) rather than pharmacologic pupillary dilation. 24,26,28 Many of these studies were primarily oriented toward screening programs for the purpose of referring persons with clinically important retinopathy to ophthalmologic care rather than conducting clinical trials or epidemiological studies. Most of these articles concluded that the comparability between film and digital grading was adequate to justify adoption of the digital medium for various clinical purposes.…”

Quality Assessment of Retinal Fundus Images using Elliptical Local Vessel Density

“…This images were captured as part of a non-research teleophtalmology program to identify diabetic retinopathy in people leaving in the Aspen Health Region of Alberta, Canada (Rudnisky et al, 2007). Once again the quality was not labelled by the physicians.…”