Conjunctivitis: Difference between revisions
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'''Conjunctivitis''' is inflammation of the surface lining (conjunctiva) of the eye. | |||
==Classification== | ==Classification== | ||
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==Etiology/cause== | ==Etiology/cause== | ||
Acute conjunctivitis may be caused by bacteria in half of cases with the most common bacteria being Haemophilus influenzae (19%), Streptococcus pneumoniae (11%), and Staphylococcus aureus (8%).<ref name="pmid16847013">{{cite journal |author=Everitt HA, Little PS, Smith PW |title=A randomised controlled trial of management strategies for acute infective conjunctivitis in general practice |journal=BMJ |volume=333 |issue=7563 |pages=321 |year=2006 |pmid=16847013 |doi=10.1136/bmj.38891.551088.7C}}</ref> | Acute conjunctivitis may be caused by bacteria in half of cases with the most common bacteria being Haemophilus influenzae (19%), Streptococcus pneumoniae (11%), and Staphylococcus aureus (8%).<ref name="pmid16847013">{{cite journal |author=Everitt HA, Little PS, Smith PW |title=A randomised controlled trial of management strategies for acute infective conjunctivitis in general practice |journal=BMJ |volume=333 |issue=7563 |pages=321 |year=2006 |pmid=16847013 |doi=10.1136/bmj.38891.551088.7C}}</ref> | ||
Common viral causes include [[herpes virus]] and [[human adenovirus|adenovirus]].<ref name="pmid6087876">{{cite journal |author=Wishart PK, James C, Wishart MS, Darougar S |title=Prevalence of acute conjunctivitis caused by chlamydia, adenovirus, and herpes simplex virus in an ophthalmic casualty department |journal=The British journal of ophthalmology |volume=68 |issue=9 |pages=653–5 |year=1984 |pmid=6087876 |doi=}}</ref> In a small study, half of the patients with herpes virus did not have corneal ulcers or lid lesions typical of herpes virus.<ref name="pmid6087876"/> | |||
==Diagnosis== | ==Diagnosis== | ||
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==References== | ==References== | ||
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Latest revision as of 11:00, 1 August 2024
Conjunctivitis is inflammation of the surface lining (conjunctiva) of the eye.
Classification
Conjunctivitis may be classified into:[1]
- Conjunctivitis, Allergic
- Conjunctivitis, Bacterial
- Conjunctivitis, Viral
- Keratoconjunctivitis
- Reiter Syndrome
Etiology/cause
Acute conjunctivitis may be caused by bacteria in half of cases with the most common bacteria being Haemophilus influenzae (19%), Streptococcus pneumoniae (11%), and Staphylococcus aureus (8%).[2]
Common viral causes include herpes virus and adenovirus.[3] In a small study, half of the patients with herpes virus did not have corneal ulcers or lid lesions typical of herpes virus.[3]
Diagnosis
A bacterial cause of acute conjunctivitis is more likely if there is early morning glued eye(s) and the lack of itching.[4]
Treatment
Delayed antibiotics, in which the patient is given about the course of conjunctivitis and a prescription to fill at their discretion over the next one to three days, may be the most appropriate strategy in primary care.[5][2]
References
- ↑ National Library of Medicine. Conjunctivitis. Retrieved on 2007-11-19.
- ↑ 2.0 2.1 Everitt HA, Little PS, Smith PW (2006). "A randomised controlled trial of management strategies for acute infective conjunctivitis in general practice". BMJ 333 (7563): 321. DOI:10.1136/bmj.38891.551088.7C. PMID 16847013. Research Blogging.
- ↑ 3.0 3.1 Wishart PK, James C, Wishart MS, Darougar S (1984). "Prevalence of acute conjunctivitis caused by chlamydia, adenovirus, and herpes simplex virus in an ophthalmic casualty department". The British journal of ophthalmology 68 (9): 653–5. PMID 6087876. [e]
- ↑ Rietveld RP, ter Riet G, Bindels PJ, Sloos JH, van Weert HC (2004). "Predicting bacterial cause in infectious conjunctivitis: cohort study on informativeness of combinations of signs and symptoms". BMJ 329 (7459): 206–10. DOI:10.1136/bmj.38128.631319.AE. PMID 15201195. Research Blogging.
- ↑ Epling J, Smucny J (2005). "Bacterial conjunctivitis". Clinical evidence (14): 756–61. PMID 16620434. [e]