What are the symptoms of conjunctivitis?

Written by Peng Xi Feng

Ophthalmology

Updated on September 11, 2024

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According to the onset speed of conjunctivitis, it can be divided into hyperacute conjunctivitis, acute or subacute conjunctivitis, and chronic conjunctivitis. The symptoms of conjunctivitis mainly include foreign body sensation, burning sensation, itching eyes, photophobia, tearing, and significant signs include conjunctival congestion, edema, increased secretions, papillary hyperplasia, follicles, pseudomembranes and true membranes, granuloma, and so on.

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Written by Peng Xi Feng

Ophthalmology

45sec

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Is conjunctivitis prone to recurrence?

Conjunctivitis is a type of localized inflammation, similar to other inflammations. This disease may recur frequently, especially in children, infants, elderly or frail patients, or those with chronic debilitating diseases such as diabetes. Due to weaker bodily resistance, these individuals are more susceptible to repeated bacterial infections. To avoid such situations, it is advised to pay attention to healthy dietary habits, avoid spicy and irritating foods, and appropriately increase physical exercise to enhance resistance, thereby minimizing the chances of disease recurrence.

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Written by Li Zhen Dong

Ophthalmology

57sec

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How to distinguish between viral conjunctivitis and allergic conjunctivitis?

Allergic conjunctivitis mainly presents with itching and conjunctival edema, generally without obvious secretions. Viral conjunctivitis usually has watery secretions and lacks significant itching. In terms of treatment, viral conjunctivitis is primarily treated with antiviral medications, such as aciclovir eye drops and ganciclovir eye drops. The treatment for allergic conjunctivitis mainly involves steroid eye drops and non-steroidal eye drops, and also requires the use of anti-inflammatory eye drops. Neither type of conjunctivitis should be treated with warm compresses. For allergic conjunctivitis, it is also important to avoid allergens, while for viral conjunctivitis, it is crucial to be aware of any visual impairments. (Note: The use of medications should be carried out under the guidance of a professional doctor.)

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Written by Peng Xi Feng

Ophthalmology

36sec

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How to care for conjunctivitis?

Patients with conjunctivitis should eliminate the cause and undertake anti-infection treatment. If sensitive to light, wearing sunglasses can help reduce irritation from light. Strict attention must be paid to personal and collective hygiene. It is advocated to frequently wash hands and face, and avoid rubbing the eyes with hands or clothing. Patients need to be isolated to prevent contagion and stop the spread of infection. It is also important to strictly disinfect face-washing implements, hand towels, and items that have come into contact with the patient.

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Written by Peng Xi Feng

Ophthalmology

1min 10sec

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Acute conjunctivitis etiology

Acute conjunctivitis, also known as acute catarrhal conjunctivitis and commonly referred to as pink eye, is highly contagious. It is most often seen in the spring and autumn seasons. The infection can occur sporadically or can spread in community settings such as schools and factories. The onset of the disease is sudden, with an incubation period of one to three days. Both eyes may be affected simultaneously or one to two days apart. The inflammation is most severe three to four days after onset and then gradually lessens, with the course of the disease generally lasting less than three weeks. The most common pathogens are Streptococcus pneumoniae, Staphylococcus aureus, and Haemophilus influenzae. The pathogens can vary with the seasons; studies indicate that infections in the winter are mainly caused by Streptococcus pneumoniae, while Haemophilus influenzae conjunctivitis is more common in the spring and summer.

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Written by Peng Xi Feng

Ophthalmology

48sec

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Conjunctivitis and Keratitis Differences

Under normal circumstances, bacteria can reside in the conjunctival sac. Infection can occur when the pathogenicity of infecting bacteria is stronger than the host's defense capabilities, or when the host's defense capabilities are compromised. Patients with varying degrees of conjunctival hyperemia and purulent, mucoid, or mucopurulent secretions in the conjunctival sac should be suspected of bacterial conjunctivitis. Keratitis refers to the condition where the cornea's defense capabilities are reduced, and inflammation of the corneal tissue occurs due to external or endogenous pathogenic factors invading the cornea.