Abstract
Purpose: :
To compare the diagnostic properties of an ultra–widefield scanning laser ophthalmoscope (SLO) versus onsite routine ophthalmologic examination for diabetic retinopathy.
Methods: :
A consecutive series of 32 eyes of 32 patients with different levels of diabetic retinopathy (DR) were examined. Grading of diabetic retinopathy and macular edema by stereoscopic dilated funduscopy was compared against grading obtained from Optomap Panoramic200 SLO images without any additional clinical information. The Optomap Panoramic200 reports were performed with an undilated pupil. The reports were evaluted by three independent graders in a masked manner utilizing the 2 different laser wavelength images.
Results: :
A total of 2 images were not gradable due to insufficient quality. Of the remaining 30 eyes 4 were proliferative diabetic retinopathy (PDR), while 4 had none, 3 mild, 8 moderate and 11 severe nonproliferative diseases. A CSME was present in 18 eyes clinically. On Optomap, all eyes with PDR were detected as being proliferative, while 2 "severe non–proliferative" eyes were graded being also proliferative. In 13 eyes total agreement regarding retinopathy level existed, while all others were within one level of retinopathy. Presence of absence of CSME was detected correctly by the 2 wavelength SLO method in 29 eyes, while in one eye with PDR CSME was missed.
Conclusions: :
The Optomap Panoramic200 non–mydriatic images are of sufficient quality to assess DR and CSME validly and therefore fulfil the basic requirements for telescreening programs.
Keywords: diabetic retinopathy • imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • diabetes