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 ?
This particular bull was heterozygous for all genes that would confer tolerance to pinkeye," Casas says.
People with bacterial or viral pinkeye should stay home until there is no longer a discharge coming from the eyes, or after 24 hours of antibiotic therapy.
Published reports show the following are viral: 90% of bronchitis, about 90% of sore throats, 50% of ear infections (80% will self-resolve), nearly all sinusitis of less than 2 weeks' duration, most pinkeye (which will self-resolve), all influenza.
Pinkeye caused by a virus or bacteria is easily spread from one person to another.
Interactions between the two crops require further study, particularly since a preliminary experiment showed that Pinkeye Purplehull BVR cowpea seedlings had allelopathic activity (Y.
For example, the sore, itchy eyes that we commonly call pinkeye and explain as a bacterial infection (conjunctivitis) is described in traditional Kuna terms as contact with the poni, or the unseen, malevolent form of a jellyfish.
Table Organism Disease/Symptom Streptococci Causes a sore throat Influenza Pneumonia Klebsiella Causes wound infections Haemophilus Highly contagious pinkeye Staphylococcus Boils or pimple Shigella Causes diarrhea Pseudomonas Causes wound infection Clostridium Difficile Causes colitis Bacteroides Causes ear infections E.
The school matron, thinking the boy had pinkeye, advised him to stay in the dark -- an experience Huxley did not like (Bedford 32).
Pinkeye (also called infectious keratoconjunctivitis) is a common problem in goats.
Some people consider Zika virus a mild cousin of dengue: Only about 20 percent of infected people get sick, and symptoms (typically a slight fever, rash and pinkeye, to name a few) fade quickly.