Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.


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 ?
When scientists looked at 36 offspring affected by pinkeye, they found that regions on chromosomes 1 and 20 harbored genes that influence the presence of bacteria, but no strong linkage to a QTL was identified.
Sometimes pinkeye is due to an allergy or something irritating the eye.
If the pinkeye is caused by a bacterial infection, he'll probably prescribe antibiotic drops or ointment.
Viral and bacterial pinkeye are contagious and can spread easily.
We got 1342 pinkeye cases in Daqahliya governorate, 11 in Port Said and 15 in Damietta.
Pinkeye causes swelling of the lining of the eyelid, called the conjunctiva.
The list reads like a public health official's worst nightmare: epizootic hemorrhagic disease and bluetongue (viruses that cause bleeding disorders), moraxella (the bacteria that cause pinkeye and pneumonia), bovine sinusoidal respiratory virus, anaplasmosis (a malaria-like disease), and psoroptic scabies, which infects the skin and ears to such a point it can render bighorns deaf--or dead.
When you go in for pinkeye or bronchitis, you don't need a weight-loss lecture and have everything blamed on your weight,'' Lyons said.
Jeffrey Cain, Chief of Family Medicine at Children's Hospital Colorado, "Bacteria and other infectious agents on a phone can cause Flu, Pinkeye or Diarrhea.
Diarrhea, nausea, skin rashes, respiratory infections, pinkeye and even meningitis and hepatitis have been associated with swimming in polluted beach water, according to the federal Centers for Disease Control and Prevention.
CAIRO: There is no need to shut down schools after the conjunctivitis outbreak, also referred to as pinkeye, official Middle East News Egypt (MENA) reported Sunday, citing Minister of Health Hatem Al-Gabaly.
About 219 schoolchildren in the Delta Governorate of Daqahlia have tested positive for Conjunctivitis, also known as pinkeye, since last Monday, the Ministry of Health spokesman said Friday.