Sudden Eye Redness: Causes and Treatment Options - Ophthalmology

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Sudden eye redness can be alarming, and understanding its causes and treatment options is crucial for effective management. In your case, it appears that your father has been diagnosed with a mild form of a condition often referred to as "eye stroke," which typically involves superficial blood vessel rupture in the eye. This can lead to noticeable redness and sometimes visual disturbances, depending on the severity and location of the bleeding.


Causes of Sudden Eye Redness
1. Subconjunctival Hemorrhage: This is the most common cause of sudden eye redness. It occurs when a small blood vessel breaks just beneath the conjunctiva (the clear surface of the eye), leading to a bright red patch on the white part of the eye. It is usually harmless and resolves on its own.

2. Allergic Reactions: Allergies can cause redness, itching, and watering of the eyes. Common allergens include pollen, dust, pet dander, and certain medications.

3. Infections: Conditions such as conjunctivitis (pink eye) can cause redness, discharge, and discomfort. Bacterial or viral infections may require specific treatments.

4. Dry Eyes: Insufficient tear production can lead to irritation and redness. This is often exacerbated by environmental factors or prolonged screen time.

5. Injury: Any trauma to the eye can cause redness and swelling. This includes scratches, foreign bodies, or chemical exposure.

6. Intraocular Pressure Changes: Conditions like glaucoma can lead to redness and require immediate medical attention.


Treatment Options
In your father's case, the prescribed eye drops (五福眼光眼藥水) are likely intended to reduce inflammation and promote healing. However, if he is experiencing increased redness and blurred vision after using the drops, it is essential to consider the following:
1. Medication Side Effects: Some eye drops can cause temporary redness or irritation as a side effect. If the redness worsens significantly or if vision continues to blur, it may be necessary to discontinue use and consult the prescribing physician.

2. Ice Compress: Applying a cold compress can help reduce swelling and discomfort. However, it should be used cautiously and not directly on the eye. Instead, wrap ice in a cloth and apply it to the eyelids for short intervals.

3. Monitoring Symptoms: Keep an eye on any changes in symptoms. If the redness persists or worsens, or if there are new symptoms such as pain, significant vision changes, or discharge, it is crucial to seek further medical evaluation.

4. Follow-Up Care: Since the doctor mentioned that the condition is mild and should resolve on its own, regular follow-ups may be necessary to monitor progress. If symptoms do not improve within a few days, or if they worsen, returning to the doctor for a reevaluation is advisable.


When to Seek Immediate Care
If your father experiences any of the following, seek immediate medical attention:
- Severe pain in the eye
- Sudden vision loss or significant changes in vision
- Persistent redness that does not improve with home care
- Symptoms of infection, such as discharge or swelling

Conclusion
In summary, while mild cases of eye redness often resolve with conservative treatment, it is essential to monitor symptoms closely. If the prescribed eye drops are causing increased redness or blurred vision, it may be wise to stop using them and consult the doctor for further advice. Eye health is paramount, and ensuring that any treatment aligns with the patient's current symptoms is crucial for recovery.