22 results
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
Vision Loss - Differential ... Nerve / Track: Glaucoma ... Occlusion, Central ... Differential #Diagnosis #causes ... #ophthalmology
Central Retinal Vein Occlusion (CRVO)
Clinical:
 • Sudden, painless, monocular loss of vision 
 • "Blood and
Central Retinal ... Occlusion (CRVO) Clinical ... monocular loss of vision ... Blood and thunder" fundoscoplc ... #Fundoscopy #Ophthalmology
Central Retinal Artery Occlusion (CRAO)
Clinical:
 • Sudden, painless, complete loss of vision 
 • Pale retina
Central Retinal ... Occlusion (CRAO) Clinical ... complete loss of vision ... • Pale retina ... #Fundoscopy #Ophthalmology
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
retinopathy • Central ... angle-closure glaucoma ... poisoning • Central ... differential #diagnosis #ophthalmology ... #causes
Central Retinal Vein Occlusion (CRVO)
 - Pathophysiology not fully understood; possibly due to thrombus located in
Central Retinal ... of vision loss ... retinopathy) #Clinical ... #Ophthalmology ... #Fundoscopy #Central
Transient Monocular Vision loss - Differential Diagnosis
Ischemia	
 - Large artery disease (atherothrombosis, embolus, dissection).
  -
Caused by decreased ... Ocular causes - ... (angle closure glaucoma ... floaters obscuring central ... Differential #Diagnosis #Ophthalmology
Pathological Optic Disc Cupping

Note cup-to-disc ratio at least 0.8 (physiologic limit of 0.5).

Thinning of optic disc
Usual cause is glaucoma ... Glaucoma causes ... OpticDisc #Cupping #fundoscopy ... #ophthalmology ... #Clinical
Differential Diagnosis for Vision Loss
Unilateral, Painful Vision Loss:
 • Corneal abrasion, Acute angle-closure glaucoma, Inflammation-iritis, uveitis,
angle-closure glaucoma ... Loss: • Retinal ... or hemorrhage, Retinal ... differential #diagnosis #causes ... #ophthalmology
Chronic Vision Loss by Anatomic Location - Differential Diagnosis Algorithm
Cornea:
 • Keratoconus
 • Stromal Scaring
 •
Degeneration (Wet, Dry) Retina ... Cup:Disc: • Glaucoma ... decrease in color vision ... Diagnosis #Algorithm #Causes ... #Ophthalmology
Age Related Macular Degeneration: Pathogenesis and clinical findings

Photoreceptor atrophy 
-> Extracellular debris (drusen) from RPE atrophy/metabolism
Pathogenesis and clinical ... - Distorted central ... vision -> Distortion ... vision -> Straight ... pathophysiology #ophthalmology