Tonometry measures the intraocular pressure (pressure inside the eyeball) and can test for glaucoma and uveitis. Increased pressure within the eye itself can be extremely painful for your horse and constitutes a medical emergency to prevent rupturing of the eyeball.
Tonometry is an easy way to check for increased intraocular pressure and can be used without sedation because horses tolerate it very well. A numbing drop is placed into each eye before the test, and a specialized instrument is lightly touched to the cornea of the eye to measure the pressures. This is just one of the ways we care for your horse’s eyes. Additional tests may include Schirmer Tear Test to test for dry eye, or Fluorescein Staining to check your horse’s eyes for ulcers or scratches.