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COMPARATIVE STUDY
JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Assessment of diabetic retinopathy using two-field 60 degrees fundus photography. A comparison between red-free, black-and-white prints and colour transparencies.
Acta Ophthalmologica Scandinavica 1999 December
PURPOSE: To assess the severity of diabetic retinopathy and maculopathy by comparing two different photographic methods; two-field 60 degrees photography using red-free, black-and-white prints and colour transparencies.
METHODS: Two ophthalmologists independently graded the photographs of 74 patients using grading scales for retinopathy and maculopathy designed for 60 degrees photography. A set of nine 60 degrees red-free, black-and-white standard photographs were chosen to represent the severity of principal diabetic retinopathy and maculopathy abnormalities.
RESULTS: The inter-observer agreement for five pooled retinopathy severity levels was 88% (kappa 0.83, weighted kappa 0.96) and 81% (kappa 0.73, weighted kappa 0.89) using red-free, black-and-white prints and colour transparencies respectively. The corresponding figures for six pooled maculopathy levels were 96% (kappa 0.84, weighted kappa 0.97) and 93% (kappa 0.67, weighted kappa 0.86). The analyses revealed that red-free, black-and-white prints disclosed a higher severity level of retinopathy in 83% (Grader 1) and 76% (Grader 2) in those eyes for which the grading was discordant.
CONCLUSION: High-quality monochrome, red-free, wide-angle fundus photographs may be useful for the detection of early and advanced diabetic retinopathy.
METHODS: Two ophthalmologists independently graded the photographs of 74 patients using grading scales for retinopathy and maculopathy designed for 60 degrees photography. A set of nine 60 degrees red-free, black-and-white standard photographs were chosen to represent the severity of principal diabetic retinopathy and maculopathy abnormalities.
RESULTS: The inter-observer agreement for five pooled retinopathy severity levels was 88% (kappa 0.83, weighted kappa 0.96) and 81% (kappa 0.73, weighted kappa 0.89) using red-free, black-and-white prints and colour transparencies respectively. The corresponding figures for six pooled maculopathy levels were 96% (kappa 0.84, weighted kappa 0.97) and 93% (kappa 0.67, weighted kappa 0.86). The analyses revealed that red-free, black-and-white prints disclosed a higher severity level of retinopathy in 83% (Grader 1) and 76% (Grader 2) in those eyes for which the grading was discordant.
CONCLUSION: High-quality monochrome, red-free, wide-angle fundus photographs may be useful for the detection of early and advanced diabetic retinopathy.
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