1193 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

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

 • Environmental Factors -> Bacterial infection is encouraged by poor hygiene
Transmission -> Eye-seeking ... fibrosis => • Corneal ... Lubrication • Dry eye ... Trachoma #Chlamydia #pathophysiology
Onchocerciasis “River Blindness”: Pathogenesis and Ocular Manifestations
Vectorial Transmission
-> Onchocerca volvulus, a parasitic helminth, matures in to
Microfilariae enter the eye ... stromal keratitis -> Corneal ... RiverBlindness #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 ... Exposes cornea -> Corneal ... Orbital #Cellulitis #pathophysiology
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
Contact lens use • Eye ... Bilateral, asymmetric corneal ... Rizutti's Sign • Corneal ... #Keratoconus #pathophysiology
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
present with a red eye ... Occurs in small eyes ... obstruction • Corneal ... ClosedAngle #Glaucoma #pathophysiology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
• Mutism Pathophysiology ... Test downward eye ... light reflex • Corneal ... coma Abnormal Eye ... lesion • Roving eye
Red Eye - Differential Diagnosis
Lids:
 • Stye (a.k.a. hordeolum)
 • Chalazion
 • Blepharitis
 • Periorbital cellulitis
Conjunctiva
Red Eye - Differential ... hemorrhage • Dry eyes ... Cornea: • Corneal ... Keratitis (i.e. corneal ... EricsMedicalLectures/ #Red #Eye
Painful Red Eye - Differential Diagnosis 
 • Acute Angle Glaucoma
 • Iritis
 • Scleritis
 •
Painful Red Eye ... Conjunctivitis • Corneal
Seesaw nystagmus 
-> eye move in an opposed vertical fashion (one goes up while the other
nystagmus -> eye ... torsion of the eyes ... (eye moving up intorts ... , eye moving down ... The eyes rotate