January 1997
Volume 38, Issue 1
Free
Articles  |   January 1997
Intraocular pressure in inbred mouse strains.
Author Affiliations
  • S W John
    Jackson Laboratory, Bar Harbor, ME 04609, USA.
  • J R Hagaman
    Jackson Laboratory, Bar Harbor, ME 04609, USA.
  • T E MacTaggart
    Jackson Laboratory, Bar Harbor, ME 04609, USA.
  • L Peng
    Jackson Laboratory, Bar Harbor, ME 04609, USA.
  • O Smithes
    Jackson Laboratory, Bar Harbor, ME 04609, USA.
Investigative Ophthalmology & Visual Science January 1997, Vol.38, 249-253. doi:
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    • Get Citation

      S W John, J R Hagaman, T E MacTaggart, L Peng, O Smithes; Intraocular pressure in inbred mouse strains.. Invest. Ophthalmol. Vis. Sci. 1997;38(1):249-253.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

PURPOSE: To develop a protocol to measure the intraocular pressure (IOP) of living mice and to determine the IOP of genetically different mouse strains. METHODS: Eyes of anesthetifzed animals were cannulated with a very fine fluid-filled glass microneedle. The microneedle was connected to a pressure transducer, and the pressure signal was analyzed with a computer system. Intraocular pressures of male C3H/He iota, C57BL/ 6 iota, A/iota, and BALB/c iota mice were determined. RESULTS: Differences in IOP were detected between genetically distinct mouse strains maintained in virtually identical environments. C3H/He iota was the strain with the highest average IOP (13.7 +/- 0.8 mm Hg). This strain average was 1.4 mm Hg higher than that for C57BL/6 iota (12.3 +/- 0.5 mm Hg; P = 0.14), 4.3 mm Hg higher than that for A/iota (9.4 +/- 0.5 mm Hg; P < 0.001), and 6 mm Hg higher than that for BALB/c iota (7.7 +/- 0.5 mm Hg; P < 0.001). CONCLUSIONS: The authors have developed an accurate and reliable procedure for measuring intraocular pressure in living mice. This procedure can detect IOP differences between groups of mice that differ by genotype.

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