OCT Results: What Do Red Flags Mean for Your Eye Health? - Ophthalmology

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OCT values in red text?


Hello Doctor: Before dilation at the ophthalmology clinic, my intraocular pressure was 20, and after dilation, it was 22.
The clinic doctor advised me to go to a larger hospital for an OCT and visual field examination, stating that I have a predisposition to glaucoma.
After the hospital examination, the doctor said that both the visual field test and OCT were normal, and there is currently no glaucoma.
The slit lamp examination of the optic nerve also appeared normal, although my intraocular pressure was slightly elevated at 23 (without dilation).
I was advised to continue monitoring and return to the small clinic for a check-up in three months.
However, the OCT report that later came through my health record had several abnormal findings.
The report data is as follows:
GCC Parameters
Avg.
GCC
OD 88.64 (yellow)
OS 87 (red)
Sup.
GCC
OD 86.60 (red)
OS 85 (red)
Inf.
GCC
OD 90.68 (yellow)
OS 89.73 (yellow)
FLV (%)
OD 0.724 (green)
OS 1.092 (green)
GLV (%)
OD 13.974 (red)
OS 14.592 (red)
Other RNFL and Nerve Head data are normal except for Sup.
Avg
OD 103.94 (yellow).

I have myopia of -2.50 in the right eye and -3.50 in the left eye, along with floaters.
I would like to inquire about the current status of my eyes based on the OCT values.
I have researched and found that the red values may indicate abnormal thickness in the macula? Since the hospital doctor did not prescribe any medication or treatment, and my job involves over 9 hours of screen time, I often experience pain around my eyes and headaches similar to symptoms of eye strain.
Should I consider going to another hospital for further examination? Thank you for your response, Doctor.

Miss Hsieh, 30~39 year old female. Ask Date: 2022/11/14

Dr. Gao Pilin reply Ophthalmology


Hello: The red text is for reference only; the physician's interpretation should be prioritized.
If the doctor says there is no problem, you can feel reassured.
Pain around the eyes and headaches are likely caused by eye strain.
When using the computer, you may consider wearing glasses with a lower prescription.
For example, if your right eye is -2.50 diopters and your left eye is -1.50 diopters.
However, you will need to try them to see what works best.
This can help reduce the strain on your eyes.
You can also use the 20-20-20 rule for eye care, which means that for every 20 minutes of computer use, take a 20-second break to look at something 20 feet (6 meters) away.
If you can blink 20 times during that break, even better.

Reply Date: 2022/11/14

More Info


Understanding the results of an Optical Coherence Tomography (OCT) test can be quite challenging, especially when you encounter abnormal findings, such as red flags in your report. In your case, the OCT results indicated some areas of concern, particularly with the ganglion cell complex (GCC) parameters, which are crucial for assessing the health of the retina and the optic nerve.

Firstly, it's important to clarify what the red flags in your OCT report mean. The GCC parameters you mentioned, particularly the average GCC values for both eyes, indicate that the left eye (OS) has lower values than the right eye (OD), with some readings falling into the red zone, which typically signifies a potential issue. The red color often indicates that the measurements are below the normal range, suggesting possible thinning or damage to the retinal nerve fibers. This can be associated with various conditions, including glaucoma, but it is not definitive on its own.

Your eye pressure readings, while slightly elevated, are not necessarily indicative of glaucoma, especially since your visual field tests and other examinations did not show any abnormalities. The fact that your ophthalmologist did not prescribe any medication or further immediate intervention suggests that they did not find sufficient evidence to warrant concern at this time. However, the recommendation for follow-up is prudent, as monitoring is essential in cases where there are borderline or abnormal findings.

Regarding your symptoms of eye pain and headaches, these could indeed be related to prolonged screen time, especially given your work environment. The phenomenon of digital eye strain, or computer vision syndrome, can lead to discomfort, including headaches and eye fatigue. Implementing the 20-20-20 rule—taking a 20-second break to look at something 20 feet away every 20 minutes—can help alleviate some of these symptoms. Additionally, using appropriate corrective lenses for screen use may reduce strain.

As for your concerns about whether you should seek further evaluation, it is always reasonable to get a second opinion, especially if you feel uncertain about your current assessment. However, it is also important to weigh the necessity of additional tests against the findings you have already received. If your symptoms persist or worsen, or if you notice any changes in your vision, it would be advisable to return to your eye care provider or seek a consultation with a specialist.

In summary, while the red flags in your OCT report warrant attention, the overall clinical picture—including normal visual field tests and the absence of glaucoma—suggests that immediate concern may not be necessary. Regular follow-up appointments are essential to monitor any changes in your eye health, especially given your history of myopia and symptoms of eye strain. Always feel empowered to discuss your concerns with your healthcare provider, as they can provide personalized advice based on your specific situation.

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