OCT and Fundus Examination for Glaucoma Diagnosis - Ophthalmology

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Fundoscopy and OCT interpretation and diagnosis of the optic nerve?


Hello Doctor, recently I've been feeling anxious about my health (I have been seeing a psychiatrist...), which led me to worry about my eyes.
I am highly myopic, with both eyes at -700 degrees.
Yesterday, my vision was measured at (775/725) and my intraocular pressure was 7/10 in the left/right eye in the morning, and 17/17 in the evening on 12/8, and 20/17 in the evening on 12/9.
After dilation, the pressure was 17/16 about 5 to 10 minutes after the dilating drops.
The doctor used an ophthalmoscope to examine my fundus and deemed it normal.
However, due to my concerns, I went to another hospital for a check-up last night, where my intraocular pressure was 19/19.
The doctor also examined my fundus and considered it within normal limits, but requested an OCT scan.
The OCT results showed abnormalities, with a red area present, prompting the doctor to recommend further visual field testing, which is scheduled for next week.
I am very worried and scared.
The doctor noticed my anxiety and mentioned that I am approaching the normal range! They also believe my visual field should be normal and noted that OCT results are not always accurate (though I am unsure if this is just a reassurance from the doctor...).

I would like to ask the doctors, if there is indeed a problem, could this be normal-tension glaucoma? Is the treatment for normal-tension glaucoma more difficult to manage? How can I protect my eyes from further deterioration in my daily life? I am also considering a combination of Western and traditional medicine.
If my visual field is fine, why would part of the OCT results fall into the red area? The more I think about it, the more anxious and upset I become, and I even had trouble sleeping last night! I work in IT, using a computer for ten hours a day.
If there is a problem, would I be unable to continue in the IT field? How long can someone with normal-tension glaucoma expect to maintain their vision? I can't bear to think about it anymore...

Liu Xiansheng, 20~29 year old female. Ask Date: 2015/01/08

Dr. Wang Zhangji reply Ophthalmology


OCT is just one of many tests and cannot be used alone to diagnose glaucoma.
There is no need to be overly concerned about hypothetical issues; joy is the best medicine.

Reply Date: 2015/01/08

More Info


It sounds like you are experiencing a lot of anxiety regarding your eye health, particularly in relation to the OCT (Optical Coherence Tomography) results and the possibility of glaucoma. It's important to remember that while these tests can provide valuable information, they are just part of a larger picture when it comes to diagnosing and managing eye conditions.

Firstly, let's clarify what OCT is and how it relates to glaucoma. OCT is a non-invasive imaging test that provides cross-sectional images of the retina, allowing doctors to see the layers of the retina and measure their thickness. This is particularly useful in detecting changes in the optic nerve and retinal nerve fiber layer (RNFL), which can be indicative of glaucoma. In your case, the presence of red areas in the OCT report suggests that there may be some abnormalities in the thickness of these layers, which could be a cause for concern.

However, it’s crucial to understand that OCT results are not definitive on their own. They need to be interpreted in conjunction with other tests, such as visual field tests and a comprehensive eye examination. The fact that your eye doctor found your fundus (the interior surface of the eye) to be normal is a positive sign. Additionally, the eye pressure readings you provided, while slightly elevated at times, are not excessively high, especially considering that you have high myopia (nearsightedness).

Regarding your concern about normal-tension glaucoma (NTG), it is indeed a type of glaucoma where optic nerve damage occurs despite normal intraocular pressure (IOP). Managing NTG can be more challenging because the typical treatments aimed at lowering IOP may not be as effective. However, it is essential to follow your doctor's recommendations, which may include regular monitoring and possibly medication to protect the optic nerve.

To address your anxiety, it might be helpful to engage in stress-reducing activities, such as mindfulness, meditation, or gentle exercise. Since you mentioned that you work long hours in front of a computer, consider implementing the 20-20-20 rule: every 20 minutes, take a 20-second break and look at something 20 feet away. This can help reduce eye strain and fatigue.

In terms of protecting your eyes, maintaining a healthy lifestyle is crucial. This includes a balanced diet rich in antioxidants (found in fruits and vegetables), staying hydrated, and avoiding smoking. Regular eye check-ups are also essential, especially given your high myopia and family history of eye conditions.

If your visual field test results come back normal, it may provide some reassurance regarding your eye health. However, if there are any abnormalities, your eye doctor will discuss the best course of action with you. Remember, early detection and treatment are key in managing glaucoma effectively.

Lastly, if you continue to feel overwhelmed, consider speaking with a mental health professional who can help you manage your anxiety. It's important to address both your physical and mental health to ensure a balanced approach to your well-being.

In summary, while your OCT results warrant further investigation, they do not definitively indicate glaucoma. Continue to follow up with your eye care provider, and take proactive steps to manage your anxiety and protect your eye health.

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