Eye Pressure Measurement: Safety Concerns and Procedures - Ophthalmology

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Intraocular pressure measurement


Hello, Doctor Gao.
Today, during the process of measuring my intraocular pressure by the nurse, I was very nervous, which resulted in poor readings.
My eye was measured more than 15 times using the air puff tonometer, and I saw several flashes of blue light, but there was no air puff.
I would like to ask: 1.
Given that I have previously undergone laser treatment for a retinal tear, could the repeated measurements and air puffing cause any harm to my retina or other parts of my eye? 2.
Does the blue light flash during the intraocular pressure measurement pose any risk to my eyes? Thank you for your response!

Xiao Mi, 30~39 year old female. Ask Date: 2022/04/08

Dr. Gao Pilin reply Ophthalmology


Hello, Xiaomi: The use of jets and blue light will not cause harm to the eyes, so please rest assured.

Reply Date: 2022/04/08

More Info


Hello! Thank you for your questions regarding eye pressure measurement and the associated safety concerns. It's understandable to feel anxious during medical procedures, especially when it involves your eyes. Let's address your concerns one by one.

1. Repeated Eye Pressure Measurements: It's common for patients to feel nervous during eye pressure measurements, which can lead to difficulties in obtaining accurate readings. The use of a non-contact tonometer (the "puff" test) involves a brief burst of air directed at the eye to measure intraocular pressure (IOP). While it may feel uncomfortable, this method is generally safe and does not cause harm to the retina or other parts of the eye, even if repeated multiple times. However, if you have a history of retinal issues, such as a retinal tear that has been treated with laser therapy, it's always a good idea to inform your healthcare provider about your concerns. They can take extra precautions and ensure that the procedure is conducted safely.

2. Flashing Blue Light: The blue light you see during the eye pressure measurement is typically a part of the device's operation, designed to help align the instrument with your eye. This light is not harmful and is used to ensure accurate measurements. The flashes are brief and should not pose any risk to your vision or eye health. However, if you experience any discomfort or unusual symptoms following the procedure, it's important to communicate this to your eye care professional.


Additional Considerations
- Anxiety Management: If you find that anxiety significantly impacts your ability to undergo eye examinations, consider discussing this with your eye care provider. They may suggest strategies to help you relax, such as deep breathing exercises or scheduling your appointments at times when you feel less anxious.

- Importance of Accurate Measurements: Accurate eye pressure measurements are crucial for diagnosing and managing conditions like glaucoma. If you struggle with the puff test, your doctor may recommend alternative methods for measuring eye pressure, such as the Goldmann applanation tonometer, which involves direct contact with the eye but is often more comfortable for patients.

- Follow-Up Care: Given your history of retinal treatment, regular follow-ups with your eye care provider are essential. They can monitor your eye health and ensure that any changes in your eye pressure or overall condition are addressed promptly.

- Understanding Eye Pressure: Normal intraocular pressure typically ranges from 10 to 21 mmHg. Values above this range may indicate a risk for glaucoma, especially if accompanied by other risk factors such as family history, age, or previous eye injuries. Regular monitoring and early intervention are key to maintaining eye health.

In conclusion, while the repeated measurements and the blue light may cause concern, they are generally safe procedures. If you have any lingering worries or experience discomfort, don't hesitate to reach out to your eye care provider for reassurance and guidance. Regular eye examinations are vital for maintaining your vision and overall eye health, especially with your medical history. Thank you for your questions, and I hope this information helps alleviate your concerns!

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