Lens Opacities Classification System II (LOCS II)
- 1 July 1989
- journal article
- research article
- Published by American Medical Association (AMA) in American Journal of Ophthalmology
- Vol. 107 (7), 991-997
- https://doi.org/10.1001/archopht.1989.01070020053028
Abstract
• The Lens Opacities Classification System, version II (LOCS II), uses a set of colored slit-lamp and retroillumination transparencies to grade different degrees of nuclear, cortical, and subcapsular cataract. The system uses four nuclear standards for grading nuclear opalescence and color, five cortical standards, and four subcapsular standards. The LOCS II can be used to grade patients' cataracts at the slit lamp or to grade slit-lamp and retroillumination photographs; it is easy to learn and can be applied consistently by different observers. We obtained very good interobserver reproducibility of the clinical gradings at the slit lamp, excellent intraobserver reproducibility, very good to excellent interobserver reproducibility of photographic gradings, and good agreement between clinical and photographic gradings. The LOCS II is potentially useful for both cross-sectional and longitudinal studies of cataract.This publication has 5 references indexed in Scilit:
- Lens Opacities Classification System II (LOCS II)American Journal of Ophthalmology, 1989
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- The Oxford Clinical Cataract Classification and Grading SystemInternational Ophthalmology, 1986
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