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W. J. Hart, M. Yablonski, M. Kass, et al., “Multivariate Analysis of the Risk of Glaucomatous Visual Field Loss,” Archives of Ophthalmology, Vol. 97, No. 8, 1979, pp. 1455-1458.

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• TITLE: Variations of Cup-to-Disc Ratio in Children

  AUTHORS: Sherif Ahmed Kamel Amer, Mohamed Yasser Sayed Saif, Ahmed Tamer Sayed Saif, Passant Sayed Saif

  KEYWORDS: Cup to Disc Ratio; Children

  JOURNAL NAME: Open Journal of Ophthalmology, Vol.4 No.1, February 10, 2014

  ABSTRACT: Purpose: The aim of this study is early detection of increased cup to disc ratio and a survey study of cup-disc ratio in Egyptian children age group less than 15 years. Methods: Three hundred and eighty-two (382) children were enrolled in this study. They were classified into three age groups; infants’ Group (1) from 0-2 years, preschool Group (2) from 2-6 years and school children Group (3) from 6-15 years old. C/D ratio was measured for each child. Results: In Group (1), normal C/D ratio ranged from 0 to 0.1. The C/D ratio > 0.3 or a binocular difference of >0.2 could be regarded as one of the criteria of newborn glaucoma. Group (2): the normal ratio ranged from 0.1-0.2. Group (3): the normal ratio ranged from 0.2-0.3. The highest ratio 0.7 was found in two eyes. An asymmetry of 0.2 or more in the C/D ratios of the eyes was found in 4.8% of the children. Conclusion: C/D ratio > 0.3 and asymmetry of 0.2 is suggestive of glaucoma especially in infants of lower age group.