35 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
The eye is very complex and contains various tissues and structures that work together to provide
The eye is very ... Eye problems can ... Eye disorders can ... blurred vision or blindness ... When the eyes are
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
sectroanopia) #VisualFieldDefects ... #Blindness #Localization
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
Vitreous Hemorrhage on Ocular POCUS

Binocular vision loss - think cortical blindness, opt for CT/MRI
Monocular vision loss
think cortical blindness ... think intrinsic eye
Visual Field Pathways and Deficits
1 Total blindness of right eye due to complete lesion of right
Deficits 1 Total blindness ... of right eye due
Amblyopia ("Lazy Eye"): Pathogenesis and clinical findings
Amblyopia => 
Interruption of visual stimulation during childhood visual development
Amblyopia ("Lazy Eye ... the amblyopic eye ... the amblyopic eye ... acuity of amblyopic eye ... Amblyopia #LazyEye #pathophysiology