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Néstor Ventura Abreu, Francisco Pérez Bartolomé, Claudia Sanz Pozo, Jose María Martínez de la Casa, Javier Moreno-Montanes; GRADING BULBAR REDNESS USING THE KERATOGRAPH 5M. CORRELATIONS WITH EFRON AND MCMONNIES SCALES.. Invest. Ophthalmol. Vis. Sci. 2016;57(12):3886.
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© ARVO (1962-2015); The Authors (2016-present)
To examine interobserver reproducibility of the Efron and McMonnies bulbar redness (BR) scales and establish correlations between these scales and the new Keratograph 5M.
This was an observational cross- sectional study. 203 eyes of 203 subjects (50 controls, 153 under treatment with topical hypotensive drugs for glaucoma) with varying degrees of conjunctival hyperaemia were scored automatically for BR using the Keratograph 5M. These scores were then correlated with the gradings provided by two image-based subjective scales: Efron and McMonnies. The interobserver reproducibility of both scales was also evaluated.
Excellent reproducibility was observed for both the Efron (Weighted K= 0.897, 95% CI 0.823 – 0.904) and McMonnies (Weighted K= 0.783, 95% CI 0.752 – 0.795) scales. Keratograph BR scores (overall redness) and the scores obtained with both Efron (Spearman's Rho= 0.43, P<0.001) and McMonnies (Spearman's Rho= 0.48, P< 0.001) were significantly correlated. Redness scores provided for the bulbar and limbar nasal and temporal quadrants also correlated well with the two subjective scales.
The Keratograph 5M method of assessing BR seems to be a good alternative to the subjective interpretation of image-based BR scales.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.
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