Assessment of diabetic retinopathy using two ultra-wide-field fundus imaging systems, the Clarus® and Optos™ systems

Table 3 International clinical DR severity level in whole images acquired from Optos vs. Clarus

International clinical DR severity level from Optos	International clinical DR severity level from Clarus					Total
International clinical DR severity level from Optos	No DR	Mild NPDR	Moderate NPDR	Severe NPDR	PDR	Total
No DR	0	0	0	0	0	0
Mild NPDR	0	0	1	0	0	1
Moderate NPDR	0	0	27	3	0	30
Severe NPDR	0	0	1	10	0	11
PDR	0	0	0	0	4	4
Total	0	0	29	13	4	46

Boldface numbers indicate perfect agreement
DR diabetic retinopathy, NPDR nonproliferative diabetic retinopathy, PDR proliferative diabetic retinopathy

ISSN: 1471-2415