See The Light South Dakota

Screening for glaucoma

Tonometry measures the fluid pressure inside your eye (intraocular pressure). This test helps your eye doctor detect glaucoma, a disease that damages the optic nerve.

Several methods to measure intraocular pressure are available, including: Find The Best Optometrist Doctor In South Dakota

  • Applanation tonometry. This test measures the amount of force needed to temporarily flatten a part of your cornea. You’ll be given eyedrops with fluorescein, the same dye used in a regular slit-lamp examination. You’ll also receive eyedrops containing an anesthetic. Using the slit lamp, your doctor moves the tonometer to touch your cornea and determine the eye pressure. Best eye doctor in South Dakota Because your eye is numbed, the test doesn’t hurt.
  • Noncontact tonometry. This method uses a puff of air to estimate the pressure in your eye.  No instruments touch your eye, so you won’t need an anesthetic. You’ll feel a momentary pulse of air on your eye, which can be startling. Best eye doctor in South Dakota

If your eye pressure is higher than average or your optic nerve looks unusual, your doctor may use a pachometer. This instrument uses sound waves to measure the thickness of your cornea. The most common way of measuring corneal thickness is to put an anesthetic drop in your eye, then place a small probe in contact with the front surface of the eye.   The measurement takes seconds.

You may need more-specialized tests, depending on your age, medical history and risk of developing eye disease. Find The Best Optometrist Doctor In South Dakota