Red Vessels on the White of the Eye: Causes and Treatments

Blood vessels on the sclera?

Hello, Doctor Gao.
I have red microvessels extending from the bottom and sides of the sclera in both of my eyes.
They don't look like typical conjunctival blood vessels and do not dissipate.
I would like to ask the following questions:
1.
Is this phenomenon indicative of vascular proliferation in the eyeball? What could be the main cause? I do not wear contact lenses, but I work in a job that requires prolonged eye use, and I would like to understand the reasons to prevent worsening.
2.
The prominent blood vessels on the sclera are not aesthetically pleasing.
Can laser surgery improve this condition? Are there other methods to induce vessel regression or prevent further extension? I am also concerned that since the vessels are very close to the pupil, they might affect my vision.
Thank you.

Rex, 20~29 year old female. Ask Date: 2020/03/23

Dr. Gao Pilin reply Ophthalmology

Hello Rex,
1.
Is this phenomenon related to vascular proliferation in the eye? What is the main cause? I do not wear contact lenses, but I work in a job that requires prolonged use of my eyes.
I would like to understand the reasons to avoid worsening the condition.
The conjunctiva naturally contains blood vessels, and factors such as irritation, allergies, infections, or excessive eye use can lead to vascular congestion, resulting in noticeable blood vessels.
Your condition may be due to eye strain.
If your situation involves pterygium, you should avoid ultraviolet light and wear sunglasses when outdoors.
2.
The prominent blood vessels on the sclera appear unsightly.
Can laser surgery improve this condition? Are there other methods to shrink the blood vessels or prevent their extension? Since the blood vessels are very close to the pupil, I am concerned about potential impacts on vision.
Typically, these vessels do not need to be removed, as the conjunctiva requires blood vessels for nutrient supply.
If the vascular proliferation or congestion is due to an eye disease, appropriate medical treatment is necessary.
If it is pterygium and it grows too large, it may obstruct the pupil, requiring surgical removal.
I recommend that you first visit an ophthalmologist to clarify the nature of this vascular proliferation.
Then, the doctor can create a treatment plan for you.
Taiwan E-Hospital, Puzi Hospital, Ophthalmology:
Monday, Tuesday, Thursday, Friday: 8:00 AM - 12:00 PM
Wednesday: 2:00 PM - 4:30 PM
Please note that online responses are for reference only; it is essential to seek medical attention at a healthcare facility if necessary.
I hope to have the opportunity to assist you.
Best regards,
Gao Pilin

Reply Date: 2020/03/23

More Info

The presence of red vessels on the white part of the eye, also known as the sclera, can be concerning for many individuals. These red vessels may indicate a condition known as conjunctival hyperemia, which is an increase in blood flow to the conjunctiva, the membrane that covers the white part of the eye. Here’s a detailed explanation of the potential causes, implications, and treatment options for this condition.

1. Causes of Red Vessels on the Eye
The appearance of red vessels can be attributed to several factors:
- Chronic Eye Strain: Engaging in activities that require prolonged focus, such as reading, using computers, or working in low-light conditions, can lead to eye fatigue. This strain can cause the blood vessels to dilate, resulting in a red appearance.

- Environmental Factors: Exposure to irritants such as smoke, dust, or allergens can lead to inflammation of the conjunctiva, causing redness. Additionally, dry air or prolonged exposure to screens can exacerbate this condition.

- Infections or Inflammation: Conditions such as conjunctivitis (pink eye) or keratitis can cause redness due to inflammation. Even if you do not wear contact lenses, these infections can occur from other sources.

- Allergic Reactions: Allergies to pollen, pet dander, or other environmental allergens can lead to red, itchy eyes as the body responds to these irritants.

- Vascular Changes: In some cases, the appearance of red vessels may indicate the formation of new blood vessels (neovascularization) due to underlying conditions, such as chronic inflammation or hypoxia (lack of oxygen) in the eye.

2. Treatment Options
If you are experiencing persistent redness, it is essential to consult with an eye care professional for a thorough examination. Here are some potential treatment options:
- Artificial Tears: If dryness is a contributing factor, using lubricating eye drops can help alleviate symptoms and reduce redness.

- Antihistamines: If allergies are the cause, over-the-counter antihistamine eye drops may provide relief.

- Avoiding Irritants: Identifying and minimizing exposure to environmental irritants can help reduce symptoms. This includes taking regular breaks during prolonged screen time (the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds).

- Prescription Medications: In cases of infection or significant inflammation, your doctor may prescribe antibiotic or anti-inflammatory eye drops.

- Laser Treatment: For cosmetic concerns regarding the appearance of blood vessels, laser treatment may be an option. This procedure can help reduce the visibility of the vessels, but it is essential to discuss the risks and benefits with your ophthalmologist, especially since the vessels are close to the pupil.

3. Monitoring and Prevention
- Regular Eye Exams: Regular visits to an eye care professional can help monitor any changes in your eye health and address issues before they become more serious.

- Healthy Eye Habits: Maintaining a healthy lifestyle, including proper hydration, a balanced diet rich in vitamins A, C, and E, and protecting your eyes from UV light, can contribute to overall eye health.

- Limit Screen Time: If your work requires long hours in front of a screen, ensure you take regular breaks and consider using blue light filters or glasses designed to reduce eye strain.

Conclusion
While red vessels on the white of the eye can be alarming, understanding the underlying causes and treatment options can help alleviate concerns. It is crucial to consult with an eye care professional to determine the exact cause of your symptoms and to receive appropriate treatment. Early intervention can prevent potential complications and ensure the health of your eyes.

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