3D Vision Distortion in Small Text: Causes and Concerns - Ophthalmology

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Small font three-dimensional sensation?


Hello Doctor: A few weeks ago, I noticed that when I woke up in the morning, my left eye had a slight three-dimensional effect when reading small text (this did not occur with larger text).
The phenomenon was limited to the radicals of individual characters and lasted until the afternoon, but it disappeared by the evening.
I later visited an ophthalmologist and underwent a fundus examination, which showed no abnormalities.
I was prescribed EYEHELP and Pataday eye drops.
Since then, I have been very concerned about my eye condition, but I have not experienced the aforementioned symptoms again.
Additionally, I am aware that I have floaters in my left eye (about 1-2 transparent floating objects).
Could this be related to the floaters combined with eye fatigue? Thank you.

Niming, 20~29 year old female. Ask Date: 2020/08/21

Dr. Gao Pilin reply Ophthalmology


Hello: It is possible that the cornea was compressed while sleeping, which could explain why the condition resolved itself after some time.
If it hasn't recurred, there should be no significant issue.
At the E-Hospital in Puzi, Taiwan, the ophthalmology department is available on Monday, Tuesday, Thursday, and Friday mornings from 8:00 AM to 12:00 PM, and on Wednesday afternoons from 2:00 PM to 4:30 PM.
Please note that online responses are for reference only; it is still necessary to seek medical attention at a healthcare facility if needed.
I hope to have the opportunity to assist you.
Gao Pi-Lin

Reply Date: 2020/08/21

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Understanding 3D Vision Distortion in Small Text: Causes and Concerns
Dear Patient,
Thank you for reaching out with your concerns regarding the visual distortion you experienced in your left eye, particularly when reading small text. It’s understandable to be worried about any changes in vision, especially when they manifest in unusual ways. Based on your description, it seems that you experienced a temporary phenomenon that could be attributed to several factors, including visual fatigue, the presence of floaters, and possibly even the effects of 3D vision perception.

Firstly, let’s discuss the phenomenon of seeing a "3D" effect or distortion when looking at small text. This can occur due to a variety of reasons. One common cause is a condition known as convergence insufficiency, where the eyes struggle to work together when focusing on nearby objects. This can lead to symptoms such as double vision or a distorted perception of text, especially when the text is small. However, since you mentioned that this distortion was limited to a specific part of the text and resolved by the evening, it may have been a temporary issue related to eye strain or fatigue.

Eye strain can occur when the eyes are overworked, particularly during activities that require intense focus, such as reading small text on a screen or paper. Symptoms of eye strain can include blurred vision, dryness, and discomfort. Given that you mentioned the distortion was only present in the morning and resolved by the afternoon, it is plausible that you experienced a mild case of eye fatigue, which is common, especially if you had been using your eyes extensively the day before.

Regarding your concern about floaters, these are typically harmless and are a common occurrence as we age. They are caused by tiny pieces of gel or cells inside the vitreous (the clear gel that fills the eye) casting shadows on the retina. While floaters can be distracting, they usually do not indicate a serious problem unless accompanied by flashes of light or a sudden increase in their number, which could signal a retinal issue.

The fact that you have already consulted with an eye care professional and underwent a thorough examination, including a fundus check, is reassuring. The absence of any abnormalities in your eye health is a positive sign. The prescribed eye drops, such as EYEHELP and Paitier, are likely intended to alleviate any dryness or discomfort you may be experiencing, which can also contribute to visual disturbances.

In terms of managing your eye health moving forward, here are a few recommendations:
1. Take Regular Breaks: When engaging in activities that require prolonged focus, such as reading or using digital devices, follow 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.

2. Maintain Proper Lighting: Ensure that your reading or working environment is well-lit. Poor lighting can exacerbate eye strain and discomfort.

3. Stay Hydrated: Keeping your body hydrated can help maintain moisture in your eyes, reducing dryness and discomfort.

4. Monitor Symptoms: Keep an eye on any recurring symptoms. If you experience the distortion again or notice any new symptoms, it would be wise to consult your eye care professional for further evaluation.

5. Consider Vision Therapy: If you find that convergence issues or eye coordination problems persist, discussing vision therapy with your eye doctor may be beneficial.

In conclusion, while the symptoms you experienced may have been concerning, they appear to be temporary and likely related to eye strain or fatigue rather than a serious underlying condition. However, continued vigilance regarding your eye health is essential. If you have any further questions or if symptoms recur, do not hesitate to reach out to your eye care provider for additional guidance.

Best wishes for your eye health,
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