White Dots as a Novel Marker of Diabetic Retinopathy Severity in Ultrawide Field Imaging
Fig 1
Different appearances of white dots and typical hard exudates in diabetic retinopathy.
(A) color fundus photograph shows yellow and metallic hard exudates and white dots (rectangular area). (B, C) Pseudocolor and green-channel ultrawide field scanning laser ophthalmoscopy images. (D) The red-channel image shows that hard exudates and not white dots are accompanied by higher signal intensity. (E) The margin of the hard exudates is delineated clearly with the Find Edges function of the ImageJ software compared to that of the white dots. (F) A merged image comprised of the panels C (gray) and E (red). Oval areas = hard exudates; arrowheads = white dots.