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acute vision loss (red eye (unilateral (Trauma, TH), bilateral…

- - - - viral, bacterial, allergic
- - - - Artery or vein complete or branch occlusion
        
        artery= embolus or atherosclerosis. venous = virchows triad usually from atherosclerosis of the artery causing nipping
      - Retinal detachment
        
        3 types. but important to work out if retina on or off
      - Vitreous haemorrhage
        
        Common in diabetes veovascularisation
      - Wet MD
        
        Dry goes to wet, the exudates adn oedema cause detachment of the macula.
      - NAISON or NON-arteritic anterior ischaemic optic neuropathy
        
        short posterior ciliary arteries
    - - ACAG
        
        pressure increases and pressure on optic nerve
      - Optic neuritis
        
        Dx: RAPD. Lupus, MS, herpes, infections
      - Giant cell arteritis
        
        short posterior ciliary arteries
  - - - Cataracts
      - Corneal abrasions
      - Glaucoma
    - - Diabetic retinopathy
      - retinitis pigmentosa
      - Dry MD