10 results
Onchocerciasis “River Blindness”: Pathogenesis and Ocular Manifestations
Vectorial Transmission
-> Onchocerca volvulus, a parasitic helminth, matures in to
Onchocerciasis “River Blindness ... Microfilariae enter the eye ... Anterior uveitis => Blindness ... RiverBlindness #pathophysiology
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
present with a red eye ... frequent cause of blindness ... Occurs in small eyes ... nerve damage & blindness ... ClosedAngle #Glaucoma #pathophysiology
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
all coats of the eye ... interior of the eye ... movements -> Pain with eye ... Endopthalmitis -> Blindness ... Orbital #Cellulitis #pathophysiology
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
• Loss of the eye ... non-functional eye ... Nyctalopia (night blindness ... #Xeropthalmia #pathophysiology
Trachoma: Pathogenesis and clinical findings

 • Environmental Factors -> Bacterial infection is encouraged by poor hygiene
Transmission -> Eye-seeking ... Lubrication • Dry eye ... => Blindness ... Trachoma #Chlamydia #pathophysiology
Cytomegalovirus (CMV) in HIV-AIDS Patients
Cytomegalovirus (CMV): double-stranded DNA virus, herpesvirus family.
CMV infection: virus isolation or detection
patient with HIV and CD4 ... Neuropathy • Eye ... common cause of blindness
Fusarium Eye Infections - Keratitis and Endophthalmitis
Fungal Keratitis is an infection of the cornea that is
Fusarium Eye Infections ... caused by trauma to eye ... • S/sx include eye ... tearing • In 2006, CDC ... to irreversible blindness
Cysticercosis - Taenia solium Life Cycle
1) Eggs or gravid proglottids in feces and passed into environment.
2)
tissues, brain, and eyes ... LifeCycle #diagnosis #pathophysiology ... infectiousdiseases #cdc
Amebiasis - Acanthamoeba Life Cycle
1) Cysts
2) Trophozoite
3) Mitosis
4) Amebae (cysts and trophozoites) can enter humans in
5) Through the eye ... keratitis of the eye ... LifeCycle #diagnosis #pathophysiology ... infectiousdiseases #cdc
PFAPA Syndrome - Periodic Fever, Aphthous Stomatitis, Pharyngitis, and Adenitis

EPIDEMIOLOGY:
PFAPA is the most common syndrome entailing
fever (FMF) PATHOPHYSIOLOGY ... edema around the eyes ... Serial CBC counts