Eye Infection Flashcards
eye inflammation of various tissues of the middle layer of the eye (between the sclera and the retina);
-caused by infection, injury, or autoimmune
-symptoms include decreased vision, ocular ache, redness, photophobia, and floaters
-can lead to vision loss
Uveitis
class of uveitis where the iris is affected
Anterior Uveitis
Class of uveitis where the focusing structures and vitreous are affected
Intermediate Uveitis
Class of uveitis where parts of the eye that attaches the retina to the white of eye are affected
Posterior uveitis
class of uveitis where all parts of the eye from the front to the back are affected
Panuveitis
Infection of the eye that involves inflammation of the transparent membrane (conjunctiva) that lines the eyelid & covers the white part of the eye;
-symptoms include: redness, tearing, itchiness, gritty feeling, discharge that forms a crust during the night
-commonly caused by viral or bacterial infection, but may also due to an allergic reaction
-In babies can be due to an incompletely opened tear duct
Conjunctivitis “Pink Eye”
caused by Adenovirus, HSV, VZV, and others including COVID 19
Viral Conjunctivitis
S. aureus, S. pneumonia, Haemophilus influenzae, Moraxella catarrhalis or, less commonly, N. gonorrhoea (STI), Chlamydia
Bacterial conjunctivitis
causes STI of the genital area and 3 types of conjuntivitis
Chlamydia trachomatis
a type of conjunctivitis which is the leading cause of preventable blindness of infectious origin
-transmitted person to person by contact with infected discharge from eye
Trachoma caused by Serovars A, B, Ba, and C
causes chronic follicular conjunctivitis- transmitted sexually or from hand-to-eye and rarely, eye-eye from sharing makeup
Adult Inclusion conjunctivitis caused by Servers D-K
also called Ophthalmia neonatorum (also if infected by GC)
-causes acute conjunctivitis in neonates when it is spread from the mother’s genitals to the baby during birth
Neonatal conjunctivitis caused by Serovars D-K
an anaerobic, obligate intracellular bacteria that infects columnar and transitional epithelial cells lining conjunctiva
Chlamydia
a form of chlamydia that is non-replicating, infectious particle released from ruptured infected cells;
it is the transmission form- human to human or in some species bird to human
Elementary body
an intracytoplasmic form that is responsible for replication of new elementary bodies
Reticulate body
a diagnostic test that allows for visualization of intracytoplasmic epithelial inclusion bodies
Giemsa staining of conjunctival scrapings
Chlamydial cultures of conjunctiva- must use _____ _______ to grow
cell lines
the best way to diagnose Chlamydia infection
Molecular tests like Nucleic Acid Amplification Test
an infection where a person’s eyes come into contact with infected genital secretions from a person with genital Gonorrhea;
-untreated cases can lead to meningitis and/or blindness
Gonococcal Conjunctivitis
an eye infection caused by GC, Chlamydia, or HSV;
-newborn’s eyes get exposed to mom’s infectious vaginal secretions during delivery;
used to use ocular prophylaxis (silver nitrate drops, erythromycin ointment at birth) but had questionable efficacy & caused newborn eye irritation
Ophthalmia Neonatorum
inflammation of the retina, may lead to blindness;
-happens mostly in immunocompromised
-most common causes: Toxoplasma, CMV, HZV, HSV, and Candida
Retinitis
causative agent for Cat Scratch fever
Bartonella (gnb)
a spirochete shaped rods that causes Lyme disease
Borrelia burgdorferi
causative agent for Syphilis
Treponema pallidum
