visual sx

visual sx

1. vision loss

   • persistant
     • chronic
       • Optical Causes
         • keratitis
         • cataract
       • neural
         • retina- nerves- chiasm- retrochiasmal
       • amblyopia
     • acute
       • keratitis
       • Acute Angle-Closure Glaucoma
       • Endophthalmitis
       • Vitreous Hemorrhage Retinal Detachment Acute Maculopathy
       • Retinal Artery Occlusion Retinal Vein Occlusion Ischemic Optic Neuropathy Occipital Cortex Infarction Optic Neuritis
   • transient
     • Monocular
       • ischemia
         • 1. embolism in carotid artery or heart 2. carotid or ophthalmic artery stenosis 3. impending occlusion of retina vessels or optic nerve optic disc 4.edema, 5. vasospasm of retinal arterioles
     • binocular
       • migraine
       • vertebrobasilar embolism
       • severe vertebrobasilar stenosis