Eyes Ears Mouth Flashcards
What is conjunctivitis?
Inflammation of the conjunctiva, the thin membrane covering the white of the eye and inside surface of the eyelids.
What are common symptoms of conjunctivitis?
Irritation, itching, grittiness in the eye, and watering or discharge.
What are the typical causes of conjunctivitis?
Viral, bacterial, or allergic; with Staphylococcus and Haemophilus influenzae as common bacterial causative organisms.
How can bacterial conjunctivitis be identified?
Yellow-white discharge, bilateral infection, and the absence of itching are suggestive; usually self-limiting.
What characterizes allergic conjunctivitis?
Bilateral, itching eyes with oedema and clear watery discharge; often associated with allergic rhinitis, eczema, or asthma.
What causes seasonal allergic conjunctivitis?
Mostly caused by pollen.
What causes perennial allergic conjunctivitis?
Allergens such as house dust mite.
What are danger symptoms in newborns with conjunctivitis?
Chronic conjunctivitis within 14 days after birth may indicate Chlamydia; profuse, purulent conjunctivitis within the first seven days may indicate gonorrhoea, requiring urgent medical treatment.
What complications can bacterial conjunctivitis in infants lead to?
Secondary infections like otitis media, meningitis, or septicaemia, especially in premature infants.
What should be considered in conjunctivitis differential diagnoses?
Any pain beyond discomfort, marked redness, or impaired vision requires further investigation for possible acute glaucoma, keratitis, or iritis.
How does bacterial conjunctivitis in infants differ from adults?
It can lead to more severe complications like otitis media, meningitis, or septicaemia.
What distinguishes allergic conjunctivitis from bacterial conjunctivitis in terms of discharge?
Bacterial conjunctivitis has a yellow-white discharge, while allergic conjunctivitis has a clear watery discharge.
What urgent medical treatment may be needed in newborns with conjunctivitis symptoms?
Symptoms in a baby under 28 days old need urgent medical attention to distinguish from a simple sticky eye and identify potential serious infections like Chlamydia or gonorrhoea.
What distinguishes bacterial conjunctivitis from viral conjunctivitis?
Bacterial conjunctivitis often has yellow-white discharge and may be self-limiting, while viral conjunctivitis is typically associated with clear watery discharge.
What is the role of the conjunctiva in the eye?
The conjunctiva is a thin protective membrane that covers the white of the eye and the inside surface of the eyelids.
How is allergic conjunctivitis linked to other allergic conditions?
Patients with allergic conjunctivitis often also suffer from allergic rhinitis, eczema, or asthma, indicating a systemic allergic response.
What is the distinction between seasonal and perennial allergic conjunctivitis?
Seasonal allergic conjunctivitis is mostly caused by pollen, while perennial allergic conjunctivitis is triggered by allergens like house dust mite throughout the year.
Why is conjunctivitis in newborns a cause for urgent medical attention?
Conjunctivitis symptoms in a baby under 28 days old may indicate serious infections like Chlamydia or gonorrhoea, requiring prompt medical treatment.
What potential complications may arise from bacterial conjunctivitis in infants?
Premature infants, particularly, are at risk of secondary infections such as otitis media, meningitis, or septicaemia.
When should further investigation be considered in conjunctivitis cases?
If there is more than discomfort, marked redness, or impaired vision, further investigation is needed to rule out serious conditions like acute glaucoma, keratitis, or iritis.
How does conjunctivitis in newborns due to Chlamydia present?
Chlamydia presents with chronic conjunctivitis within 14 days after birth and requires urgent medical attention.
What distinguishes gonorrhoea-related conjunctivitis in newborns?
Gonorrhoea may present with profuse, purulent conjunctivitis within the first seven days of life, necessitating urgent medical treatment.
What precautions should be taken with NSAIDs in conjunctivitis treatment?
NSAIDs may be considered for pain relief, but caution is advised due to potential adverse effects, especially in certain populations.
How can conjunctivitis symptoms be managed without medication?
Topical heat, such as warm compresses, can help alleviate symptoms, providing a non-pharmacological approach to relief.