Persistent Red Spots in the Eye: Causes and Concerns - Ophthalmology

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Persistent blood vessels in the sclera?


Hello Doctor, I have noticed a blood clot in the lower left area of my left eye for several years now (it's not just a single line, but rather a small patch) that has been persistent and cannot be eliminated.
Initially, I thought it was not a problem since there were no symptoms, but after a year, I noticed it had grown slightly.
Now, after about four years, I see that the blood clot is expanding at a very slow rate.
Could you please tell me what condition this might be? Additionally, I have recently been doing physical training and noticed that after training, the blood vessels in my eyes temporarily increase significantly, but then they decrease after a short period.
Is this normal? Thank you, Doctor.

Ben, 20~29 year old female. Ask Date: 2018/04/17

Dr. Cai Wenyuan reply Ophthalmology


Hello, I have noticed a temporary increase in the redness of my eyes after physical training, which subsides after a short period.
Is this normal? It is possible for this to occur.
Wishing you peace and health.
Sincerely, Dr.
Tsai Wen-Yuan, Director of the Ophthalmology Department, Taoyuan General Hospital, Ministry of Health and Welfare.

Reply Date: 2018/04/17

More Info


Hello! Thank you for your question regarding the persistent red spots in your eye, which you have observed for several years. It’s understandable to be concerned about changes in your eye, especially when they involve visible blood vessels or spots.

From your description, it sounds like you may be experiencing a condition known as "conjunctival telangiectasia," which is characterized by the dilation of small blood vessels in the conjunctiva (the clear membrane covering the white part of the eye). This can appear as red or pink spots or lines on the eye. While this condition is often benign and may not cause any symptoms, it can sometimes be associated with underlying issues, such as chronic irritation or inflammation.

The fact that you have noticed this red spot has been slowly increasing in size over the past four years is worth monitoring. While many cases of conjunctival telangiectasia are harmless, any significant changes in size or appearance should prompt a visit to an eye care professional for a thorough examination. They can assess whether the growth is purely vascular or if it might be related to other conditions, such as a conjunctival cyst or even a more serious issue like a conjunctival tumor.

Regarding your observation of increased redness after physical training, this is generally a normal response. Physical exertion can lead to increased blood flow and pressure, which may cause temporary dilation of the blood vessels in the eyes, resulting in a more pronounced red appearance. This is particularly common if you are engaging in strenuous activities or exercises that increase your heart rate significantly. The redness typically subsides shortly after you rest and your body returns to its normal state.

However, if you experience any additional symptoms such as pain, vision changes, or persistent redness that does not resolve, it is crucial to seek medical attention. These could be signs of more serious conditions, such as uveitis (inflammation of the middle layer of the eye), or other ocular surface diseases.

In terms of self-care, here are a few recommendations to help maintain eye health:
1. Stay Hydrated: Ensure you are drinking enough water, as dehydration can contribute to dry eyes and irritation.

2. Limit Eye Strain: If you spend a lot of time in front of screens, follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds.

3. Use Artificial Tears: If you experience dryness, consider using preservative-free artificial tears to keep your eyes lubricated.

4. Protect Your Eyes: Wear sunglasses with UV protection when outdoors to shield your eyes from harmful rays.

5. Regular Eye Exams: Schedule regular check-ups with an eye care professional to monitor any changes in your eye health.

In conclusion, while the persistent red spots you observe may not be immediately concerning, it is essential to keep an eye on any changes and consult with an eye care professional for a comprehensive evaluation. They can provide you with a definitive diagnosis and appropriate management options tailored to your specific situation. Thank you for reaching out, and I hope this information helps clarify your concerns!

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