Ocular tonometry

Tonometry is a diagnosis test that measures the pressure inside the eye, which is called intraocular pressure.

What does ocular tonometry involve?

Before the tonometry test, the doctor will put eye drops in your eye so you won’t feel anything touching it. Once your eye is numb, your doctor may touch the surface of your eye with a small strip of paper, which has an orange substance, to stain it. This helps increase the accuracy of the test. Your doctor will then put a device called “slit lamp” in front of you.
It will ask you to place your chin and forehead on the holders provided, then move the lamp towards your eye until the tip of the tonometer probe touches your cornea. By flattening your cornea a little, the tonometer
can detect the pressure in your eye. The doctor will adjust the pressure until it obtains an accurate reading.
Because your eye is numb, you won’t feel pain during this procedure. Tonometry is a safe procedure.

What can be diagnosed by ocular tonometry?

Your doctor may suggest a tonometry test if he or she suspects you may be at risk of glaucoma, or to supplement some investigations.

You may have an increased risk of glaucoma if:

  • you are over 40 years old
  • have a family history of glaucoma
  • you have myopia or hypermetropia
  • have other chronic eye disorders
  • have you injured your eye in the past
  • you have diabetes
  • have high blood pressure
  • you have poor blood circulation
  • you have used corticosteroid medicines for long periods of time

Your doctor may also test your eye pressure if you have symptoms such as:

  • gradual loss of peripheral vision
  • tunnel vision
  • severe eye pain
  • blurred vision
  • haloes around lights
  • reddening of the eyes

All these symptoms can be signs of glaucoma.

Text medically reviewed by Dr. Teodor Holhoș, Ophthalmic Surgeon
Written by Dr. Holhos Team

You can make an appointment quickly via the form on the right, or directly over the phone. Our colleagues at the reception desk will be happy to provide you with the availability and information you need to make an appointment. Filling in the form does not represent the registration or confirmation of an appointment, but submitting an appointment request. You will be contacted by our team to check the availability of doctors and make an appointment.


Important note regarding patient consultations and surgery appointments

A patient who cancels a consultation or surgery appointment once, at least one day prior to the scheduled appointment, has the right to a second appointment under the same conditions.
If the patient cancels the second consultation and/or surgery appointment, a new appointment can be made only if the patient accepts to pay for both the consultation and the surgery in advance. This can be done either by payment order or in cash at the clinic reception.
A patient who does not show up for their consultation or surgery, who does not cancel the appointment in due time, or does not answer the clinic’s calls, may request a second appointment only if they pay for the consultation/surgery in advance. 
Patients requesting an appointment for retinal surgeries or laser Prk/Femtolasik/Smile Pro must pay 30% of the cost of the surgery in advance. The appointment will be scheduled only after receiving the advance payment. If the patient is unable to attend the scheduled consultation or surgery, and cancels the intervention at least 48 hours beforehand, they will be refunded in full. If the patient does not show up and does not cancel or contact the clinic at least 48 hours in advance, the advance paid is considered to be lost as damages and will no longer be refunded.