Ultra-widefield imaging was found to have “moderate to substantial agreement” with ETDRS 7-field imaging to determine the severity of diabetic retinopathy.
The cross-sectional study included 764 eyes. Both ETDRS 7-field and ultra-widefield images were evaluated by trained graders to find the agreement between the ultra-widefield images, ultra-widefield images masked to include only the ETDRS 7-field area and ETDRS 7-field images.
Researchers obtained modified ETDRS 7-field images using the Diabetic Retinopathy Clinical Research Network acquisition protocol and ultra-widefield images
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