What is catarrhal conjunctivitis
Catarrhal conjunctivitis is a common eye disease characterized by conjunctival congestion, increased secretions, and eye discomfort. It is usually caused by bacteria, viruses or allergens and occurs most often in spring and autumn. Here's a closer look at catarrhal conjunctivitis, including symptoms, causes, treatments, and prevention.
1. Symptoms of catarrhal conjunctivitis

Symptoms of catarrhal conjunctivitis include:
| Symptoms | Description |
|---|---|
| conjunctival hyperemia | The whites of the eyes are red and the blood vessels are dilated |
| increased secretions | Eyelids are sticky and secretions are mucus or purulent when you wake up in the morning |
| Foreign body sensation in eyes | Feeling like there is grit or foreign matter in the eye |
| Photophobia and tears | Sensitive to light, prone to tears |
2. Causes of catarrhal conjunctivitis
The causes of catarrhal conjunctivitis are diverse, including the following:
| Cause type | specific reasons |
|---|---|
| bacterial infection | Common bacteria such as Staphylococcus aureus and Streptococcus pneumoniae |
| viral infection | Adenovirus, herpes simplex virus, etc. |
| allergic reaction | Allergens such as pollen, dust mites, and animal dander |
| environmental factors | Air pollution, smoke, ultraviolet rays and other stimuli |
3. Treatment of catarrhal conjunctivitis
Treatments for catarrhal conjunctivitis vary depending on the cause:
| Cause | Treatment |
|---|---|
| Bacterial | Antibiotic eye drops or ointment, such as levofloxacin |
| viral | Antiviral medications, such as acyclovir eye ointment |
| allergic | Antihistamines, corticosteroid eye drops |
| general care | Apply cold compresses, keep eyes clean, and avoid rubbing eyes |
4. Preventive measures for catarrhal conjunctivitis
The key to preventing catarrhal conjunctivitis is to avoid triggers and maintain good hygiene:
| Precautions | Specific methods |
|---|---|
| personal hygiene | Wash your hands frequently and avoid rubbing your eyes with your hands |
| Avoid contact with allergens | Reduce going out during pollen season and use an air purifier |
| eye protection | Wear goggles to avoid direct UV rays |
| Enhance immunity | Balanced diet, regular work and rest, moderate exercise |
5. The relationship between recent hot topics and catarrhal conjunctivitis
Recently, with the arrival of the spring pollen season, the incidence of allergic catarrhal conjunctivitis has increased. The following is the content related to catarrhal conjunctivitis in hot topics on the Internet in the past 10 days:
| hot topics | Related content |
|---|---|
| Allergies are more common in spring | An increase in cases of conjunctivitis caused by pollen allergies has been reported in many places |
| Eye health science | Experts remind you to avoid abusing eye drops and require symptomatic treatment |
| air pollution warning | Haze weather may aggravate conjunctivitis symptoms |
| Research and development of new eye drugs | Clinical trial of anti-allergy eye drops progresses |
6. Summary
Catarrhal conjunctivitis is a common eye disease with various causes and obvious symptoms. Timely diagnosis and treatment are key, and preventive measures can effectively reduce the incidence. There has been a high incidence of allergies in spring recently. The public needs to pay special attention to eye health, avoid contact with allergens, and seek medical treatment when necessary.
If you or your family members experience similar symptoms, it is recommended to consult an ophthalmologist in time and do not self-medicate to avoid delaying the condition or aggravating the symptoms.
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