What causes gaze-evoked amaurosis transient vision loss (TVL)?

Updated: May 21, 2019
  • Author: Andrew J Tatham, MD, MBA, FRCOphth, FEBO, FRCS(Ed); Chief Editor: Andrew G Lee, MD  more...
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Answer

Answer

Gaze-evoked amaurosis (compression) is transient vision loss occurring when looking in a particular direction. Transient vision loss may be related to local ocular conditions, such as ocular surface disorders (eg, dry eyes), intraocular foreign bodies or masses, central or branch retinal vein occlusion, central or branch retinal artery occlusion, arteritic anterior ischemic optic neuropathy, intermittent angle closure glaucoma, hyphema, and optic neuritis. Transient vision loss is also recognized in association with optic disc drusen and colobomas. [4, 5] The mechanism for transient vision loss in these conditions is not fully understood but may be related to local hypoperfusion of the optic nerve or retina.


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