Effect of reproductive status on intraocular pressure in cats

Ron Ofri*, Nuriel Shub, Zvi Galin, Mordechai Shemesh, Laurence S. Shore

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Objective-To measure intraocular pressure (IOP) and progesterone concentrations in cats and to examine their reproductive organs to determine whether reproductive status affects IOP in cats. Animals-75 sexually intact domestic shorthair cats scheduled to be neutered, including 28 males, 21 females not in estrus, 13 females in estrus, and 13 pregnant females. Procedures-Applanation tonometry was conducted to measure IOP and radioimmunoassay was used to determine progesterone concentrations. Reproductive organs were examined at time of surgery. Results-The IOP in female cats that were in estrus was significantly higher than IOP in female cats that were not in estrus. Progesterone concentrations significantly affected IOP in pregnant cats. Conclusions and Clinical Relevance-In cats, IOP is affected by changes in reproductive status. Such changes should be considered when interpreting tonometry results in this species.

Original languageAmerican English
Pages (from-to)159-162
Number of pages4
JournalAmerican Journal of Veterinary Research
Issue number2
StatePublished - 1 Feb 2002


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