Eye Symptoms: When to Seek Help for Vision Issues - Ophthalmology

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Eye problems


Hello, Doctor.

1.
Last night, while looking at my phone in a dark place, I saw what looked like fine raindrops falling.
I have experienced this before (occasionally a single drop), but this time it was more continuous (though not as heavy as a downpour).
After resting my eyes for a moment, it stopped, but later I felt a slight sensation of fine rain starting again, so I went to sleep.
Is this a symptom of floaters? At what point or severity should I see a doctor?
2.
Previously, I noticed rainbow halos around lights (I was wearing contact lenses that day).
After seeing a doctor the next day, I was told I had a corneal abrasion (my eyes were red the day before wearing the lenses, but I’m not sure if that contributed).
However, after wearing contact lenses again (possibly for too long), I still see rainbow halos around lights.
Is this normal? Could it be related to dry eyes?
3.
I would like to ask if there are any abnormalities: (1) Seeing blue light shadows in the dark (similar to what I see when my eyes are closed); (2) Small dots quickly flashing in front of my eyes (similar to the sensation of a fruit fly or mosquito flying by); (3) Sometimes the text on my phone appears to slightly thicken or thin (sometimes alternating between subtle thickening and thinning).

Niming, 20~29 year old female. Ask Date: 2020/07/10

Dr. Gao Pilin reply Ophthalmology


Hello: 1.
If it disappears, it is likely a type of photopsia, which should not be a concern.
2.
Seeing rainbow halos indicates corneal edema, which may occur due to prolonged wear time; it is advisable to shorten the wearing duration to prevent corneal hypoxia.
3.
(1) It could be photopsia, (2) it might be floaters, or (3) it indicates that you have been looking at your phone for too long, causing fatigue in the ciliary muscles of your eyes.
For further assistance, you can visit the ophthalmology department at Puzi Hospital in Taiwan: Monday, Tuesday, Thursday, and Friday from 8:00 AM to 12:00 PM, and Wednesday from 2:00 PM to 4:30 PM.
Please note that online responses are for reference only; it is necessary to seek medical attention at a healthcare facility if needed.
I hope to have the opportunity to assist you.
Gao Pilin

Reply Date: 2020/07/10

More Info


When it comes to understanding eye symptoms and determining when to seek medical help, it is crucial to recognize the signs and their potential implications. Based on your description, several symptoms warrant further discussion.

1. Seeing Floaters or "Rain": The experience of seeing what you describe as "fine rain" or floaters is commonly associated with a condition known as vitreous floaters. These are tiny clumps of gel or cells inside the vitreous, the clear gel that fills the eye. While floaters are often benign, a sudden increase in their number, especially if accompanied by flashes of light or a shadow in your peripheral vision, could indicate a more serious condition, such as a retinal tear or detachment. If you notice these symptoms persisting or worsening, it is advisable to consult an eye care professional promptly.

2. Rainbow Halos Around Lights: The appearance of rainbow halos around lights, especially after wearing contact lenses, can be indicative of corneal issues, such as corneal edema or abrasions. If you experienced redness prior to wearing your lenses, this could suggest that your cornea was already compromised. Continued perception of halos after the initial injury may indicate that the cornea has not healed properly or that there is ongoing irritation. Dry eyes can exacerbate this condition, as a lack of sufficient tears can lead to corneal surface irregularities. If this symptom persists, it is essential to revisit your eye doctor for a thorough examination and possibly a change in your contact lens regimen or treatment for dry eyes.

3. Other Visual Disturbances: The symptoms you describe, such as seeing blue light in dark environments, experiencing small dots that flash across your vision, and noticing fluctuations in text clarity, can be attributed to various factors. The blue light phenomenon could be related to afterimages or visual snow, which can occur in low-light conditions. The rapid flashing dots may be related to the same floaters mentioned earlier, or they could be a sign of visual disturbances that require further investigation. The changes in text clarity could be a result of eye strain, particularly if you are spending extended periods looking at screens without adequate breaks.


When to Seek Help
Given the complexity of your symptoms, it is advisable to seek medical attention if:
- You experience a sudden increase in floaters or flashes of light.

- You notice any significant changes in your vision, such as a curtain-like shadow or loss of peripheral vision.

- The rainbow halos around lights persist or worsen, especially if accompanied by discomfort or redness.

- You have ongoing symptoms that affect your daily activities, such as difficulty reading or focusing.


Additional Considerations
In addition to seeking help for acute symptoms, consider the following:
- Regular Eye Exams: Regular check-ups with an eye care professional can help monitor your eye health and catch any potential issues early.

- Eye Care Practices: Ensure you are using your contact lenses as directed, maintaining proper hygiene, and taking breaks during prolonged screen time to reduce eye strain.

- Hydration and Nutrition: Staying hydrated and maintaining a balanced diet rich in vitamins A, C, and E can support overall eye health.

In conclusion, while some of your symptoms may be benign, others could indicate underlying issues that require professional evaluation. It is always better to err on the side of caution when it comes to your vision. If you have any doubts or if your symptoms persist, do not hesitate to reach out to an eye care professional for a comprehensive assessment.

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