Question 1

How do I prepare for a Tonometry?

Accepted Answer

Quick and painless test that measures the pressure inside the eye to detect problems such as glaucoma.

Question 2

What do I need to know before a Tonometry?

Accepted Answer

• **Definition:** A quick and painless test that measures the pressure inside the eye to detect problems like glaucoma.
• **Fasting:** No fasting necessary. You can eat your usual food and drink water or liquids completely normally before coming to your appointment.
• **Medication:** You should maintain and take your usual medication, including the eye drops or eye ointments you use regularly. However, remember that any change or suspension of your drugs must always be consulted with your doctor.
• **Clothing and Accessories:** You can wear the clothes you feel most comfortable in. There are no restrictions on metals, jewelry, or watches. Nonetheless, we suggest avoiding very tight garments around the neck (such as ties or very tight high collars), as they can slightly increase pressure in the head and alter the measurement.
• **Specific Requirements:** The most important requirement is that, if you use contact lenses (lentillas), you must remove them before the exam; therefore, we recommend taking your case or coming directly with your glasses. Additionally, it is important that you try not to rub your eyes before entering the consultation. In many cases, the ophthalmologist will apply some local anesthetic drops and a yellow dye to perform the test.
• **Expected discomfort or pain from the test:** It is a very quick and completely painless procedure. If the test is performed with an air tonometer, you will only feel a small and unexpected puff or burst of air in the eye, which can be a bit startling but doesn't hurt. If they use a contact device, you will feel absolutely nothing because your eye will be anesthetized. After the test, it is normal to have slightly blurred vision for a few minutes or notice that your tears have a yellowish tone from the dye, which disappears quickly by blinking.

Question 3

What do I have to do before a Tonometry?

Accepted Answer

• **Definition:** A quick and painless test that measures the pressure inside the eye to detect problems like glaucoma.
• **Fasting:** No fasting necessary. You can eat your usual food and drink water or liquids completely normally before coming to your appointment.
• **Medication:** You should maintain and take your usual medication, including the eye drops or eye ointments you use regularly. However, remember that any change or suspension of your drugs must always be consulted with your doctor.
• **Clothing and Accessories:** You can wear the clothes you feel most comfortable in. There are no restrictions on metals, jewelry, or watches. Nonetheless, we suggest avoiding very tight garments around the neck (such as ties or very tight high collars), as they can slightly increase pressure in the head and alter the measurement.
• **Specific Requirements:** The most important requirement is that, if you use contact lenses (lentillas), you must remove them before the exam; therefore, we recommend taking your case or coming directly with your glasses. Additionally, it is important that you try not to rub your eyes before entering the consultation. In many cases, the ophthalmologist will apply some local anesthetic drops and a yellow dye to perform the test.
• **Expected discomfort or pain from the test:** It is a very quick and completely painless procedure. If the test is performed with an air tonometer, you will only feel a small and unexpected puff or burst of air in the eye, which can be a bit startling but doesn't hurt. If they use a contact device, you will feel absolutely nothing because your eye will be anesthetized. After the test, it is normal to have slightly blurred vision for a few minutes or notice that your tears have a yellowish tone from the dye, which disappears quickly by blinking.

General instructions for Tonometry

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