Light scattering in the C57BL/6 mouse lens
2007 (English)In: Acta Ophthalmologica Scandinavica, ISSN 1395-3907, E-ISSN 1600-0420, Vol. 85, no 2, 178-182 p.Article in journal (Refereed) Published
To characterize inherent light scattering in the C57BL/6 mouse lens.
Lenses from 20 6-week-old female C57BL/6 mice were extracted from freshly enucleated globes and microsurgically cleaned of remnants of the ciliary body. Lens light scattering was measured quantitatively with a light dissemination meter (LDM). Morphological properties of the mouse lenses were documented using grid- and dark-field illumination photography. Analysis of variance was performed to establish variance for animals, variance between left and right eyes and variance for measurements.
Average inherent light scattering in the C57BL/6 mouse lens is 0.16 +/- 0.02 tEDC (transformed equivalent diazepam concentration). The mean size of a mouse lens at 6 weeks is 1.9 mm in diameter. Two lenses featured pre-existing cortical lens opacities. Variance for animals was assessed to be 7.9 10(- 4) tEDC(2), variance for measurements was 1.6 10(- 4) tEDC(2), and variance between left and right eyes was 8.8 10(- 4) tEDC(2). The tolerance limit for non-pathological light scattering was determined to 0.26 tEDC. No significant difference in light scattering between left and right mouse lenses was found. The minimum number of C57BL/6 mice required for detection of a 10% experimentally induced change in light scattering intensity was estimated to be 50 for independent group experiments and 25 for paired design experiments.
The C57BL/6 mouse is a suitable animal in which to conduct experiments on light scattering or cataractogenesis with high precision at reasonable sample sizes. Before including C57BL/6 mice into a study on cataractogenesis, pre-existing lens opacities such as congenital cataract must be excluded.
Place, publisher, year, edition, pages
2007. Vol. 85, no 2, 178-182 p.
Lens, light scattering, C57BL/6 mouse, cataract, oxidative stress
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-104236DOI: 10.1111/j.1600-0420.2006.00800.xPubMedID: 17305731OAI: oai:DiVA.org:uu-104236DiVA: diva2:220269