ACUTE VISION LOSS: Unilateral Unilateral Bilateral Acute Vision Loss Optic Nerve Painful Painless No Abnormalities of the Optic Nerve Abnormalities of the Optic Nerve Retina Visible Retina Not Visible Keratopathy Acute Angle Closure Glaucoma (fixed dilated pupil) Temporal Arteritis Demyelination MS Idiopathic Glaucoma Retinal Detachment Retinal Artery Occlusion Retinal Vein Occlusion Ischemic Optic Neuropathy Visual Cortex Infarction Retinal Hemorrhage Vitreous Hemorrhage Clinical Pearls:Optic neuritis causes pain with EOM Temporal arteritis causes temporalis pain and pain with mastication Acute angle closure glaucoma causes high intraocular pressure, unilateral eye pain, mid-dilated pupil and n/v Retinal detachment can present as a veil over the vision and with flashes and floaters. TIA, vein or artery occlusion requires stroke work-upCornea Retina Vitreous Transient Ischemic Attack

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