Acute Vision Loss is the mainstay of this sqadia.com medical video lecture. Beginning with the causes of acute vision loss, anatomy of eye is also discussed along with the information about how to take history. Subsequently, light is also shed on acute unilateral vision loss and acute optic neuropathy. Conclusively, comments are given about anterior ischemic optic neuropathy.

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Lecture Duration - 00:53:58
Release Date - June 2019

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CAUSES
Choroid, cornea, fovea, iris, optic nerve, and retina are the anatomical structures by the discussion of which Dr. Hina Khan initiated the section. After discussing the anatomy of eye, causes of acute visual loss comes under consideration containing unilateral and bilateral causes. Flashing lights, jaw claudication and diplopia are the associated symptoms.

HISTORY
What sort of questions to be asked from a patient for the purpose of taking history are primarily delineated in this section? For instance, these questions encompass is there any pain associated with vision loss? What was the tempo? abrupt, or developed over hours days and weeks.

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ACUTE UNILATERAL VISION LOSS
At first, diagrammatic representation of acute unilateral vision loss is given. Branch retinal artery occlusion (BRAO) is then discussed which is painless whereas acute congestive glaucoma is a painful condition. Treatment modalities include AC paracentesis, diamox, selective ophthalmic artery catheterisation.

ACUTE OPTIC NEUROPATHY
Differential diagnosis of acute optic neuropathy is discussed with the help of a schematic approach by categorizing old and young patients into two different groups. Prevalence of optic neuritis is high in females between the age of 20-50 years. Proceeding further, Dr. Hina Khan talks about treatment and tells that these treatment do not have long term effects.

ANTERIOR ISCHEMIC OPTIC NEUROPATHY
In the beginning of this section, causes of non-arteritic AION, such as crowded disk, are pursued. After that, information about arteritic AION is delivered. Following this, vitreous haemorrhage is highlighted which can be due to retinal vein occlusion, retinal microaneurysm.

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