First Author: D.Bansal SWEDEN
Co Author(s): M. Nilsson U. Jansson R. Brautaset S. Garcia Lazaro C. Laurell A. Cervi
Purpose:
Determine the usefulness of Scheimpflug images combined with retoillumination for lens opacity grading
Setting:
St. Erik's Eye Hospital, Karolinska Institutet
Methods:
46 eyes from 46 patients with mild lens opacity were included in the study. Opacity grading was carried out by one practitioner using the LOCS III scale and Scheimpflug imaging and retroilumination image from the Scheimpflug system were carried out for each eye. Scheimpflug tomogram and retroilumination images were used for a second grading based on the LOCS III scale as well. Practitioner was patient-blinded while scoring the Shceimpflug tomograms for nuclear opalescence (NO, scale 0.1 to 6.9) and the retroillumination images for cortical (C) or posterior subcapsular (P) cataract (scale 0.1 to 5.9).
Results:
Mean scores for the sample from slit-lamp LOCSIII grading were 1.69±0.84, 0.89±0.72 and 0.92±0.85 for NO, C and P, respectively. Mean scores for Scheimpflug images grading were 1.70±0.85, 0.90±0.67 and 0.94±0.80, respectively. Mean difference in scores between methods were 0.01±0.25, 0.01±0.28 and 0.01±0.19 for NO, C and P, respectively (p>0.05 in all cases). Scheimpflug images were reported as " easier to grade"
Conclusions:
High agreement between slit-lamp and Scheimpflug grading using the LOCS III scale shows the potential of Scheimpflug imaging in the automatic grading of lens opacity based on traditional clinical grading systems to be used in combination with parametric analysis of optical density. FINANCIAL DISCLOSURE?: ... is employed by a forNoprofit company with an interest in the subject of the presentation
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