Why is one eye bloodshot?
Recently, the health issue of "bloodshot eyes" has been gaining popularity on major social platforms and search engines, and many netizens have expressed concerns about it. This article will combine the hot topics and medical knowledge on the Internet in the past 10 days to provide you with a detailed analysis of the possible causes, symptoms and countermeasures of congestion in one eye, and provide structured data for convenient reference.
1. Common causes of congestion in one eye

| Cause classification | Specific performance | Proportion (reference) |
|---|---|---|
| Conjunctivitis | Viral/bacterial infection causing red eyes and increased discharge | 35% |
| subconjunctival hemorrhage | Flaky, bright red bleeding without obvious pain | 25% |
| dry eye syndrome | Accompanied by foreign body sensation and visual fatigue | 15% |
| Trauma or foreign body | Recent history of eye collision or sand and stone intrusion | 12% |
| acute attack of glaucoma | Severe eye pain, headache and vision loss | 5% |
| Others | Allergy, iritis, etc. | 8% |
2. Analysis of hot topics on the entire network
According to public opinion monitoring data, relevant discussions in the past 10 days have mainly focused on the following aspects:
| platform | High frequency problem | heat index |
|---|---|---|
| Baidu knows | “Do I need to seek medical attention if one eye is congested after staying up late?” | 87,000 |
| #Improper wearing of contact lenses causes red eyes# | 123,000 | |
| little red book | "Sharing experience in self-healing of subconjunctival hemorrhage" | 56,000 |
| Douyin | "Sudden redness may be a sign of these serious illnesses." | 189,000 |
3. Suggestions for hierarchical processing
1.Situations that can be observed at home:
- Painless subconjunctival hemorrhage (usually resolves on its own in 7-14 days)
- Mild dry eye syndrome (relieved by artificial tears)
- Temporary congestion caused by staying up late or lightly rubbing your eyes
2.Situations that require medical treatment within 24 hours:
- Accompanied by blurred vision or increased intraocular pressure
- Profuse purulent discharge
- Persistent congestion after trauma
3.emergency indications:
- Sudden severe eye pain accompanied by nausea and vomiting
- Vision loss or flashing lights
- Chemical substances splashed into eyes
4. Recent typical cases
| Case type | clinical manifestations | final diagnosis |
|---|---|---|
| white-collar workers | After working overtime continuously, my right eye is red and there is no secretion. | subconjunctival hemorrhage |
| swimming enthusiast | Left eye is red and itchy + a lot of eye mucus | bacterial conjunctivitis |
| elderly patients | Redness of the right eye and headache on the same side | acute angle closure glaucoma |
5. Preventive measures
1. Eye hygiene: Avoid rubbing your eyes with your hands, and wear contact lenses no more than 8 hours a day.
2. Environmental adjustment: Keep the air humidity at 40%-60% and avoid direct air-conditioning blowing
3. Diet aid: increase intake of vitamin C and omega-3 fatty acids
4. Work and rest management: ensure more than 7 hours of sleep, and take a 5-minute break every hour you use your eyes.
6. Professional doctor’s advice
Dr. Wang, deputy director of the Ophthalmology Department of Beijing Tongren Hospital, pointed out in a recent live broadcast: “Although congestion in one eye is common, you need to be alert to the ‘red alert’:
- Lasts for more than 72 hours without relief
- Progressive loss of vision
- White deposits appear on the cornea
These situations require professional slit lamp examination. "
Note: The data in this article are compiled from Baidu Index, Weibo hot searches, and health self-media content published in the past 10 days. It is for reference only. Please follow the doctor’s advice for specific diagnosis and treatment.
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