Abstract
A clinical trial was undertaken to determine whether a commercially available lens opacity meter (LM701), which measures backward scattered light from the lens, provides reliable clinical information about the effect of lens opacities on visual acuity. At the 0.001 level of probability we found a significant relationship between the lens opacity meter reading and both the Snellen acuity and patient's age. For a given individual there was also a relationship between the difference in the lens opacity readings between eyes and the difference in the Snellen acuities. We could not demonstrate a relation between the lens opacity reading and either the refractive error, pupil size, or near visual acuity at this level of significance.
Full text
PDF



Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Ben-Sira I., Weinberger D., Bodenheimer J., Yassur Y. Clinical method for measurement of light backscattering from the in vivo human lens. Invest Ophthalmol Vis Sci. 1980 Apr;19(4):435–437. [PubMed] [Google Scholar]
- Brown N. A., Bron A. J., Sparrow J. M. Methods for evaluation of lens changes. Int Ophthalmol. 1988;12(4):229–235. doi: 10.1007/BF00133938. [DOI] [PubMed] [Google Scholar]
- Brown N. Quantitative slit-image photography of the lens. Trans Ophthalmol Soc U K. 1972;92:303–307. [PubMed] [Google Scholar]
- Cotlier E., Fagadau W., Cicchetti D. V. Methods for evaluation of medical therapy of senile and diabetic cataracts. Trans Ophthalmol Soc U K. 1982;102(Pt 3):416–422. [PubMed] [Google Scholar]
- De Natale R., Flammer J., Zulauf M., Bebie T. Influence of age on the transparency of the lens in normals: a population study with help of the Lens Opacity Meter 701. Ophthalmologica. 1988;197(1):14–18. doi: 10.1159/000309911. [DOI] [PubMed] [Google Scholar]
- Flammer J., Bebie H. Lens opacity meter: a new instrument to quantify lens opacity. Ophthalmologica. 1987;195(2):69–72. doi: 10.1159/000309790. [DOI] [PubMed] [Google Scholar]
- GOLDMANN H. SENILE CHANGES OF THE LENS AND THE VITREOUS. THE ARTHUR J. BEDELL LECTURE. Am J Ophthalmol. 1964 Jan;57:1–13. doi: 10.1016/0002-9394(64)92026-4. [DOI] [PubMed] [Google Scholar]
- Hendrickson P., Robert Y. Contrast transfer ratio in normal, cataractous, and intraocular implant lenses. A clinical photopapillometric study. Graefes Arch Clin Exp Ophthalmol. 1986;224(2):191–194. doi: 10.1007/BF02141496. [DOI] [PubMed] [Google Scholar]
- Hockwin O., Lerman S., Ohrloff C. Investigations on lens transparency and its disturbances by microdensitometric analyses of Scheimpflug photographs. Curr Eye Res. 1984 Jan;3(1):15–22. doi: 10.3109/02713688408997183. [DOI] [PubMed] [Google Scholar]
- Hockwin O., Weigelin E., Hendrickson P., Koch H. R. Kontrolle des Trübungsverlaufs bei der Cataracta senillis durch Linsenphotographie im regredienten Licht. Klin Monbl Augenheilkd. 1975 Apr;166(4):498–503. [PubMed] [Google Scholar]
- Kawara T., Obazawa H. A new method for retroillumination photography of cataractous lens opacities. Am J Ophthalmol. 1980 Aug;90(2):186–189. doi: 10.1016/s0002-9394(14)74852-4. [DOI] [PubMed] [Google Scholar]
- Maclean H., Taylor C. J. An objective staging for cortical cataract in vivo aided by pattern-analysing computer. Exp Eye Res. 1981 Dec;33(6):597–602. doi: 10.1016/s0014-4835(81)80099-1. [DOI] [PubMed] [Google Scholar]
- Sample P. A., Esterson F. D., Weinreb R. N., Boynton R. M. The aging lens: in vivo assessment of light absorption in 84 human eyes. Invest Ophthalmol Vis Sci. 1988 Aug;29(8):1306–1311. [PubMed] [Google Scholar]
- Sparrow J. M., Bron A. J., Brown N. A., Ayliffe W., Hill A. R. The Oxford Clinical Cataract Classification and Grading System. Int Ophthalmol. 1986 Dec;9(4):207–225. doi: 10.1007/BF00137534. [DOI] [PubMed] [Google Scholar]
- Strobel J., Jacobi K. W., Lohmann W., Schmehl W., Wunderling M., Ibrahim M. Die Bedeutung von Fluoreszenzspektren für die Beurteilung von Linsentrübungen. Klin Monbl Augenheilkd. 1986 Aug;189(2):141–143. doi: 10.1055/s-2008-1050771. [DOI] [PubMed] [Google Scholar]
- WOLF E., GARDINER J. S. STUDIES ON THE SCATTER OF LIGHT IN THE DIOPTRIC MEDIA OF THE EYE AS A BASIS OF VISUAL GLARE. Arch Ophthalmol. 1965 Sep;74:338–345. doi: 10.1001/archopht.1965.00970040340009. [DOI] [PubMed] [Google Scholar]
- van den Berg T. J. Importance of pathological intraocular light scatter for visual disability. Doc Ophthalmol. 1986 Jan 15;61(3-4):327–333. doi: 10.1007/BF00142360. [DOI] [PubMed] [Google Scholar]
