Eye Pressure: Is Your Measurement Normal or Concerning? - Ophthalmology

Share to:

Intraocular pressure issues?


Hello, I measured my intraocular pressure a week ago, and it was 24 in both eyes, with a normal fundus examination.
Today, I measured it again and found that my cornea is thicker, and after calculation, my intraocular pressure is around 20.
Is this still considered normal? Isn't it close to the critical point? The doctor didn't say much; I think it's because I'm young, so they didn't consider the possibility of glaucoma.
Should I still be concerned about this?

Niming, 10~19 year old female. Ask Date: 2017/03/24

Dr. Cai Wenyuan reply Ophthalmology


Hello: Based on the corrected intraocular pressure, it is considered normal.
There is no need for concern; regular check-ups will suffice.
Wishing you peace and health.
Sincerely, Dr.
Tsai Wen-Yuan, Director of Ophthalmology, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2017/03/24

More Info


When it comes to understanding eye pressure, it's essential to recognize that the measurement of intraocular pressure (IOP) is a critical factor in assessing the risk of glaucoma and other ocular conditions. Your recent measurements of 24 mmHg and 20 mmHg, especially in the context of a thicker cornea, warrant a nuanced understanding.

Firstly, the normal range for intraocular pressure is generally considered to be between 10 and 21 mmHg. However, this range can vary based on individual factors, including age, corneal thickness, and overall eye health. In your case, while a reading of 24 mmHg is above the normal range, your subsequent reading of 20 mmHg is within the acceptable limits. The fact that your eye doctor did not express concern may indicate that they are considering your age and overall eye health, which can be reassuring.

Corneal thickness plays a significant role in interpreting eye pressure readings. A thicker cornea can lead to higher IOP readings, which may not necessarily indicate an increased risk of glaucoma. This is because the pressure inside the eye can be influenced by the structural properties of the cornea. Therefore, when evaluating your eye pressure, it’s crucial to consider both the IOP and the corneal thickness. In your case, if your cornea is thicker than average, the 20 mmHg reading might not be as concerning as it would be for someone with a thinner cornea.

It's also important to note that a single measurement of eye pressure is not sufficient for diagnosing glaucoma. Eye care professionals typically look at a combination of factors, including the optic nerve appearance, visual field tests, and the overall health of the eye, to make a comprehensive assessment. If your eye doctor has not indicated any immediate concerns, it may be a sign that they believe your readings are not indicative of glaucoma at this time.

However, it is always wise to remain vigilant. If you experience any symptoms such as vision changes, eye pain, or persistent discomfort, you should seek further evaluation. Regular eye exams are crucial, especially if you have risk factors for glaucoma, such as a family history of the disease, high eye pressure, or other ocular conditions.

In summary, while your readings of 24 mmHg and 20 mmHg are noteworthy, the context of your corneal thickness and the absence of concerning symptoms are positive indicators. It is advisable to continue with regular eye examinations to monitor your eye health and IOP. If you have any lingering concerns or if your symptoms change, do not hesitate to consult with your eye care provider for further evaluation and peace of mind. Regular monitoring and open communication with your healthcare provider are key to maintaining good eye health and addressing any potential issues early on.

Similar Q&A

Understanding Eye Pressure: Concerns and Management for Glaucoma

Hello, I apologize for the lengthy message. On July 12, I went to a general clinic for a retinal examination and found my intraocular pressure (IOP) to be 24 and 25 mmHg (after 5 air puffs). The doctor suspected glaucoma. Two weeks later, on July 18, I went to a larger hospital f...


Dr. Gao Pilin reply Ophthalmology
Hello: 1. It is beneficial to have follow-ups at the same clinic. This allows the physician to monitor your changes effectively. 2. The difference measured by a properly functioning machine should not be significant. You can go to a clinic you trust. 3. If managed properly, it is...

[Read More] Understanding Eye Pressure: Concerns and Management for Glaucoma


Understanding High Eye Pressure: Should You Be Concerned?

Hello, doctor. I have high myopia (approximately -7.00 diopters). When I had my intraocular pressure measured at the clinic, one eye was 24 and 25, while the other was 23. The first doctor advised me to adjust my eye usage habits and return for a re-evaluation in a month, stating...


Dr. Gao Pilin reply Ophthalmology
Hello, concerned individual: It is necessary to determine if medication is needed and how long to measure intraocular pressure, as well as to conduct visual field testing and corneal thickness measurement for a definitive assessment. Regarding conjunctivitis, eye allergies do not...

[Read More] Understanding High Eye Pressure: Should You Be Concerned?


Understanding the Differences in Eye Pressure Measurement Techniques

Hello Doctor: I have been experiencing consistently high intraocular pressure and have been using eye drops for treatment. Recently, after moving and changing doctors, I discovered that the new clinic measures intraocular pressure using two different methods: one while looking st...


Dr. Gao Pilin reply Ophthalmology
Hello Fei Fei: When you look up, the movement of your eyeballs may cause the extraocular muscles or surrounding tissues to exert pressure on the eyeball, which can lead to an increase in intraocular pressure.

[Read More] Understanding the Differences in Eye Pressure Measurement Techniques


Understanding Eye Pressure Differences: Why Is My Left Eye Higher?

Hello, Dr. Tsai. I went to the hospital to measure my intraocular pressure, and my left eye is consistently three units higher than my right eye. I have tried quickly blinking with both eyes, and my left eye blinks faster than my right. Could this be the reason why my left eye&#x...


Dr. Cai Wenyuan reply Ophthalmology
Hello: Your intraocular pressure is within the normal range, so there is no need for concern. Wishing you peace and good health. Sincerely, Dr. Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.

[Read More] Understanding Eye Pressure Differences: Why Is My Left Eye Higher?


Related FAQ

Eye Pressure

(Ophthalmology)

Intraocular Pressure

(Ophthalmology)

Ocular Hypertension

(Ophthalmology)

Hyperopia

(Ophthalmology)

Dry Eye Discomfort

(Ophthalmology)

Fundus Examination

(Ophthalmology)

Nystagmus

(Ophthalmology)

Pupil Dilation

(Ophthalmology)

Prescription Strength

(Ophthalmology)

Eye Allergies

(Ophthalmology)