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Related Concept Videos

Anatomy of the Eyeball01:20

Anatomy of the Eyeball

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The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
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Related Experiment Video

Updated: Mar 8, 2026

A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion
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A Murine Model of Ischemic Retinal Injury Induced by Transient Bilateral Common Carotid Artery Occlusion

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[Retinal artery occlusion].

N Feltgen1, A Pielen2

  • 1Augenklinik der Universitätsmedizin Göttingen (UMG), Robert-Koch-Str. 40, 37075, Göttingen, Deutschland. nicolas.feltgen@med.uni-goettingen.de.

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|January 18, 2017
PubMed
Summary
This summary is machine-generated.

Retinal artery occlusion causes severe vision loss and is linked to cardiovascular risks. Current treatments are limited, emphasizing the need for prompt neurological and cardiological evaluation.

Keywords:
FibrinolysisRetinal arteryVascular occlusionVisionVisual fields

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Area of Science:

  • Ophthalmology
  • Neurology
  • Cardiology

Background:

  • Retinal artery occlusion (RAO) results in significant vision impairment.
  • RAO is infrequently caused by local eye conditions.
  • Patients often exhibit numerous cardiovascular and cerebrovascular risk factors.

Purpose of the Study:

  • To summarize the current understanding of retinal artery occlusion.
  • To highlight the diagnostic and therapeutic challenges.
  • To emphasize the importance of multidisciplinary patient management.

Main Methods:

  • Review of existing literature on retinal artery occlusion.
  • Analysis of clinical presentation and risk factors.
  • Evaluation of current and potential treatment strategies.

Main Results:

  • Central retinal artery occlusion (CRAO) typically presents with visual loss, while branch retinal artery occlusion (BRAO) may cause visual field defects.
  • No definitive effective therapy currently exists for RAO.
  • Intravenous fibrinolysis shows limited promise due to a narrow therapeutic window (approx. 4.5 hours) and unproven efficacy.

Conclusions:

  • Ophthalmologists must refer patients for urgent neurological and cardiological assessment.
  • Multidisciplinary evaluation is crucial for managing patients with RAO.
  • Further research is needed to establish effective treatments for RAO.