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inflammation of the conjunctiva; it may be caused by bacteria or a virus, or by allergic, chemical, or physical factors. Its infectious form (of bacterial or viral origin) is highly contagious. See also pinkeye.
acute contagious conjunctivitis a contagious inflammation of the conjunctiva caused by Haemophilus aegypticus; secretions must be handled with extreme care to prevent its spread. Popularly known as pinkeye.
acute hemorrhagic conjunctivitis a highly contagious form due to infection with enteroviruses.
gonococcal conjunctivitis (gonorrheal conjunctivitis) a severe form caused by infection with gonococci, marked by greatly swollen conjunctivae and eyelids with a profuse purulent discharge. In newborns it is bilateral, acquired from an infected maternal vaginal passage. In adults it is usually unilateral and is acquired by autoinoculation into the eye of other gonococcal infections, such as urethritis, either in oneself or in another person. Called also gonorrheal ophthalmia.
inclusion conjunctivitis a type of conjunctivitis primarily affecting newborn infants, caused by a strain of Chlamydia trachomatis, beginning as an acute purulent form and leading to papillary hypertrophy of the palpebral conjunctiva.
neonatal conjunctivitis ophthalmia neonatorum.

a·cute con·ta·gious con·junc·ti·vi·tis

an obsolete term for an acute conjunctivitis marked by intense hyperemia and profuse mucopurulent discharge.


/pink·eye/ (pink´i″) acute contagious conjunctivitis.




An acute, very contagious form of conjunctivitis, caused by the hemophilic bacterium Hemophilus aegyptius and marked by thick secretions.



Veterinary medicine
A highly contagious pinkeye-like keratoconjunctivitis that affects cattle, caused by Moraxella bovis, an obligate intracellular, gram-negative aerobic bacillus, which is spread by direct contact or via the common fly.
Clinical findings
Purulent conjunctivitis, oedema, corneal opacity and ulceration, loss of appetite, weight loss.
Long-acting antibiotics—e.g., tetracycline.


Conjunctivitis Ophthalmology Acute contagious conjunctivitis by Haemophilus aegyptius or H ducreyi; 'pinkeye' has been obfuscated by the lay public, which may use the term for any condition in which the eyes are pink–eg, bilateral bacterial or viral conjunctivitis, 'misuse' of eyes–ie, prolonged exposure to smoky rooms, alcoholism, dissipated lifestyle, severe iritis, closed angle glaucoma, etc. See Red eye.


3. In horses, a form of equine viral arteritis.


see infectious bovine keratoconjunctivitis, contagious ophthalmia (sheep and goats).

Patient discussion about pinkeye

Q. How to treat a pink eye? I have pink eye in my left eye. It's very uncomfortable, how can I treat it?

A. Here is a link to a website which describes a home treatment for pink eye:

More discussions about pinkeye
References in periodicals archive ?
isolated Coxsackievirus A24 as the second most common viral agent following adenoviruses for acute conjunctivitis, but no Enterovirus 70 was isolated.
4,10) In this study, we collected both conjunctiva and pharynx samples from patients with acute conjunctivitis and used the PCR method for identification of viral agents.
Etiology of acute conjunctivitis due to coxsackievirus A24 variant, human adenovirus, herpes simplex virus, and chlamydia in Beijing, China.
We have established a specialized sales team on the ground who will be marketing and selling this innovative and easy-to-use product to eyecare practitioners across the US, bringing a new, fast and accurate diagnostic option that will aid in the differential diagnosis of acute conjunctivitis.
AdenoPlus can rapidly aid in the differential diagnosis of acute conjunctivitis
AdenoPlus accurately detects adenovirus, which accounts for up to 90% of all viral conjunctivitis, and approximately one out of four cases of acute conjunctivitis seen by eyecare practitioners.
tried to isolate the virus from patients with acute conjunctivitis in Busan between April and August 1983.
Enterovirus etiology of the 1970 Singapore epidemic of acute conjunctivitis.
Acute conjunctivitis can be caused by viruses including emerovirus 70 (EV-70), coxsackievirus A24, and epidemic adenoviruses.
In children, the most common bacterial species associated with acute conjunctivitis are Hemophilus influenzae, Streptococcus pnuemoniae , and Staphylococcus species.

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