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The relationship between central nuclear scatter and perinuclear retrodots in the human crystalline lens

Abstract

Retrodots are common perinuclear features of age-related cataract. Clinical observation suggested that retrodots were associated with increased nuclear scatter. To test this hypothesis, retrospective data were analysed from 78 non-diabetic subjects (118 eyes), of at least 50 years of age, who had neither subscapsular nor axial spoke opacities. Retrodots were graded using the Oxford Clinical Cataract Classification and Grading system and central nuclear scatter was assessed by image analysis of Scheimpflug photographic negatives. Regression analysis in groups was performed according to the “intra-class correlation model” either considering retrodots as a graded feature (grades 0-5) or as a dichotomous variable (present or absent). After adjusting for age (treated as a co-variate), a highly significant association (P<10-6) was found between retrodots and increased nuclear scatter in each analysis. It is suggested that the co-existence of these two cataract types may reflect a common cataractogenic mechanism, possibly oxidative stress.

References

  1. Bron AJ and Brown NAP : Perinuclear lens retrodots: a role for ascorbate in cataractogenesis. B J Ophthalmol 1987, 71: 86–95.

    CAS  Article  Google Scholar 

  2. Brown NAP : The visibility of transparent objects in the eye by retro-illumination. B J Ophthalmol 1971, 55: 517–24.

    CAS  Article  Google Scholar 

  3. Hiller R, Sperduto RD, Ederer F : Epidemiologic associations with nuclear, cortical and posterior subcapsular cataract. Am J Epidemiol 1986, 124: 916–25.

    CAS  Article  Google Scholar 

  4. Sparrow JM, Bron AJ, Brown NAP, Hill AR, Ayliffe W : The Oxford clinical cataract classification and grading system. Int Ophthalmol 1986; 9: 207–25.

    CAS  Article  Google Scholar 

  5. Sparrow JM, Ayliffe W, Bron AJ, Brown NAP, Hill AR : Inter-Obseryer and intra-observer variability of the Oxford clinical cataract classification and grading system. Int Ophthalmol 1988, 11: 151–7.

    CAS  Article  Google Scholar 

  6. Chylack LT, Leske C, McCarthy D, Khu P, Kashiwati T, Sperduto R : Lens opacities classification system II (LOCS II). Arch Ophthalmol 1989, 107: 991–7.

    Article  Google Scholar 

  7. Getty DJ, Pickett RM, Chylack LT, Leske C, McCarthy D, Huggins AWF : An enriched set of features of nuclear cataract identified by multidimensional scaling. Curr Eye Res 1989, 8/1: 1–8.

    Article  Google Scholar 

  8. Brown NAP : Quantitative slit-image photography of the lens. Trans Ophthalmol Soc UK 1972, 92: 303–17.

    CAS  PubMed  Google Scholar 

  9. Sparrow J, Brown NAP, Bron AJ, Shun-Shin GA : The Oxford modular cataract image analysis system. Eye 1990, 4: 638–48.

    Article  Google Scholar 

  10. Sparrow JM : The lens in diabetes. D. Phil Thesis, Linacre College, University of Oxford. 1988.

  11. Brown NAP : The Oxford Retro-illumination cataract recording camera: a new instrument. J Audiovis Media in Med 1988, 11: 58–60.

    CAS  Article  Google Scholar 

  12. Rosner B : Statistical methods in ophthalmology: an adjustment for the intra-correlation between eyes. Biometrics 1982, 38: 105–14.

    CAS  Article  Google Scholar 

  13. Ederer F : Shall we count numbers of eyes or numbers of subjects? Arch Ophthalmol 1973, 89: 1–2.

    CAS  Article  Google Scholar 

  14. Ray WA, O'Day DM, Head WS et al: Statistical analysis for experimental models of ocular disease: continuous response measures. Curr. Eye Res 1985, 4: 585–97.

    CAS  Article  Google Scholar 

  15. Harding CV, Chylack LT, Susan SR, Lo W-K, Brobowski WF : Calcium-containing opacities in the human lens. Invest Ophthalmol Vis Sci: 83, 1194–1202.

  16. Benedek GB : Theory of the transparency of the lens. Applied Optics 1971, 10: 459–73.

    CAS  Article  Google Scholar 

  17. Spector A, Li S, Sigelman J : Age-dependent changes in the molecular size of human lens proteins and their relationship to light scatter. Invest Ophthalmol Vis Sci 1974, 13: 795–801.

    CAS  Google Scholar 

  18. Harding J and Crabbe MJC : The lens: development, proteins, metabolism and cataract. In: Davson H. The Eye. Vol lb. Vegetative physiology and biochemistry. London: Academic Press 1984, 207–192.

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Shun-Shin, G., Bron, A., Brown, N. et al. The relationship between central nuclear scatter and perinuclear retrodots in the human crystalline lens. Eye 6, 407–410 (1992). https://doi.org/10.1038/eye.1992.84

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  • DOI: https://doi.org/10.1038/eye.1992.84

Keywords

  • Lens retrodots
  • nuclear cataract
  • scheimpflug photography
  • image analysis

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